Voice coil actuator vs linear motor A voice coil motor is a type of permanent magnet linear motor, which is based on the Ampere force theorem. This paper explains the functional principle and properties of voice coil, linear, and torque motors. A Voice Coil Actuator This article examines a voice coil actuator [1] with optimized parameters from [1]. COILThe coil is wound using 36-gauge (0. Apr 24, 2018 · A voice coil actuator, also known as a non-commutated DC linear actuator, is a type of direct drive linear motor. Because of their small dimensions, voice coil motors are often integrated in compact stages, actuators, and fast tip/tilt mirror platforms. Low wear and high lifetime. It has the following advantages: a simple structure, a small size, no cogging force, and a fast response time. Furthermore, it uses examples to show how the performance characteristics of the various motor types can be adapted to the Manufacturer of Linear Voice Coil Motors, Linear Motors with Internal Bearing, Hollow Core Linear Motors, Direct Drive Linear Motors, Linear Motor with Built-in Encoder, Linear Motorized Stages, Linear Hollow Core Motorized Stages, Optical Encoder Modules. May 24, 2025 · Voice Coil Motors, also known as linear motors or voice coil actuators, consist of a coil of wire wound around a bobbin that is free to move within a magnetic field. They offer the following features: Fast operation – Low electrical inductance, and low moving mass enable fast inflow of current and high acceleration. Feb 26, 2025 · Browse What is a linear coil actuator? Three minutes to understand its principle and application to follow our business journey and embrace the future of energy-saving automation. While their components are the same, the configurations of linear and rotary voice coil actuators are quite different. Jun 25, 2018 · Voice coil actuators are linear motors which can provide precise force and positioning over a modest distance, and is easy to control By combining your demanding requirements with our innovative technology, the Celera Motion Voice Coil Actuator is able to deliver an integrated solution that meets the precision motion needs for Saat merancang sistem yang memerlukan gerakan linier presisi, para insinyur seringkali menemukan istilah seperti "Linear Voice Coil Actuator" dan "Linear Motor Actuator. Frontgrade specializes in tailored voice coils, offering linear and rotary actuators for rapid, precise motion control in technical applications. Voice coil actuators are most commonly used for micro- or nano-positioning applications, where very precise positioning and smooth movement are paramount. Our unique flexure design ensures repeatable linear movement. Optional force sensor for applying defined forces. The ironless core coil assembly has no magnetic attractive force to the stationary magnet assembly, which reduces the load on the bearing system and increases its life. Applying current to the coil creates a force in the axial The motors developed in-house are identified by the PIMag® brand name. These motors, having a large axial hole throughout the entire coil and body structure are ideal for optical focusing, scanning and other precision positioning applications requiring an axial opening through the motor. This simple yet effective design allows for direct and precise linear motion control. , autofocus systems, hard disk drive head positioning, precision metrology, medical dispensing, vibration isolation), a Linear Voice Coil Actuator is likely the superior choice. In this configuration the coil is common called a voice coil. A voice coil actuator, based on the Lorentz force concept, is a type of direct drive mechanism which delivers extremely precise positioning over small displacements. PI's positioning systems and scanners that use these motors are labelled: Driven by PIMag®. Non-commutated limited angular excursion. Voice coil actuators are emerging as an extremely valuable solution for many precision motion applications. Also known as a non-commutated DC linear actuator, it's easy to control, fast, and compact. The linear VCMs utilize a magnetic field generated by permanent magnets in connection with a coil of wires to produce an electric driving force for high-precision position control. Discover fast-response linear coil actuators at DH-Robotics. This paper reviews and Ein Linear Motor Actuator ist eine breite Kategorie von Elektromotoren, die direkte lineare Bewegungen erzeugen, ohne dass Dreh-zu-Linear-Umwandlungsmechanismen wie Gewindetriebe oder Riemen erforderlich sind. The outer shell is a (permanent) magnet and the inner part slides in and out of the shell because of the magnetic field. Voice coil motors are an effective alternative to electromechanical components such as Voice coil motors evolved through the original audio speaker design. Linear Voice Coil Actuators AVM - Highly suitable as servo drive element The voice coil actuator is a non-commutated, two terminal limited motion device. Jul 17, 2018 · But unlike the design relationship between rotary and linear motors, developing a rotary voice coil actuator isn’t simply a matter of taking the linear version and rolling it into a cylinder. For more information on SMAC actuators, contact us to request a product demo. Apr 20, 2018 · A voice coil actuator, also known as a non-commutated DC linear actuator, is a type of direct drive linear motor. These devices include linear actuators, force feedback actuators, voice coils, and more. Apr 25, 2025 · Discover the key differences between voice coil actuators and linear motors, exploring their applications, mechanics, and advantages in this informative guide Apr 28, 2025 · For a balanced view, designers should note that voice coil actuators are not suitable for applications requiring a long stroke length or significant load power. The motors developed in-house are identified by the PIMag® brand name. Linear Motors Linear motors are electromagnetic actuators that generate continuous linear motion rather than short, discrete movements like solenoids or voice coil actuators. In a linear actuator, the voice coil drives a spring that has a resonant frequency. Jul 1, 2020 · This paper proposes a novel voice coil motor (VCM) actuator that can supply a 5 degree of freedom (DOF)–compensation that consists of three linear movements and two rotational movements for smartphone camera modules. Both Voice coil motors offer excellent control characteristics where linear actuation is required over short distances with electronic control systems. There are also no magnetic drag forces (hysteresis), which allows Voice Coil Actuators are based on a single-phase, brushless electromagnetic linear motor similar to the driver of a loud-speaker. Multiple drive concepts are available: compact direct-drive linear actuators based on voice-coil linear motors, for strokes from a few millimeters to an inch and longer stroke actuators based on 3-phase linear motors. The voice coil motor can be controlled by a digital servo drive, coupled with suitable feedback it is the ideal solution for short-distance high speed positioning Voice coil actuators are linear actuators which are utilized in speakers and headphones for conversion of electrical signals in proper vibrations and they generate sound waves. Dec 16, 2011 · Linear Voice Coil Motors Moticont provides designs and manufactures linear motors, positioning stages, and fully integrated single/multi-axis positioning systems including Voice Coil Linear Actuators, Linear Stepper Motor, Linear Induction Motor and many more. Oct 22, 2015 · The question of whether to use voice coil actuators or solenoids for small displacement motion control applications comes up often. Other The VM series of Voice Coils Motors from Geeplus addresses applications where excellent control for short stroke, bidirectional linear actuation is required–in medical or optical equipment, for example. Apr 3, 2020 · Voice Coil Actuator The voice coil actuator, utilizing Lorentz force, offers precise small-scale positioning. In this study, a voice coil motor was designed to provide x-directional thrust in the magnetically levitated cable table of a lithography machine. The frictionless voice-coil motor system is ideal for rapidly positioning samples when speed, precision, and short settling times are required. The term is also used for voice coil linear motors such as those used to move the heads inside hard A niche area of motion control is found in voice coils. Cost: Moving coil linear motors (and their accompanying motion controllers) have until recently cost five times more than a pneumatic cylinders and valves of comparable size … and triple that of stepper-motor-based ball screw actuators. By increasing the actuator’s size and mass, VCAs produce a more substantial and realistic vibration effect. Acceleration of >500G is possible with custom devices Jun 18, 2018 · The voice-coil actuator is a linear motor which can provide precise force and positioning over a modest distance, and is easy to control. A Voice Coil is a type of solenoid linear actuator within which an electrical coil and a permanent magnet interact to create high speed, precisely controlled linear motion. Two standard sizes are offered that each include a linear bearing, encoder, and thermocouple. Our voice coil motor stages, also known as voice coil motor axes, offer a highly precise and dynamic solution for your industrial applications. OEM linear actuator PIMagTM voice coil magnetic drive, high velocity and high dynamics. H2W Technologies is a manufacturer of voice coil actuators and linear motors, for a wide range of linear motion applications. It may also be a good Rotary plunger coil motors offer all the benefits of voice coil actuator technology, including direct drive, zero backlash and ripple-free operation for precise motion, as well as high acceleration and the use of single-phase current. To be precise, it pushes or pulls on the mass, the mass then moves as a result of this force. Sensata's voice coil actuator solution is an incredibly precise and powerful direct drive device in a compact package. When driven at its resonant frequency, the spring moves a mass within the actuator with maximum strength. These motors consist of two separate parts; the magnetic housing and the coil. The VCA series actuators were developed to fill a market gap for large, high force, linear voice coil actuators. SMAC provides significantly longer life, programmability, high speed, accuracy with energy efficiency. The Latest in High Definition Haptics Technology LMR Haptic Actuators Linear Magnetic Rams (LMRs) are wideband voice-coil haptic motors that use a solid-state magnetic suspension instead of springs or flexures. 12 enables the operation of voice coil motors with feedback system and (a)synchronous servomotors with and without feedback (sensorless regulation). Apr 3, 2018 · By H2W Technologies A voice coil actuator, also known as a non-commutated DC linear actuator, is a type of direct drive linear motor. Aug 8, 2024 · In engineering applications that require a limited range of motion, a voice coil or non-commutated direct current linear actuator is often the preferred choice. These moving coil motors are often found in applications where excellent control for short stroke, bidirectional linear actuation is required – in medical or optical equipment What is a Voice Coil Motor? Voice coil motors (VCM) or voice coil actuators (VCA) are non-commutated DC linear actuators that consist of a single-pole permanent magnet and a copper coil. Take a look at this side-by-side comparison of moving coil technology vs pneumatics. It is widely used in the field of high-precision control. Unfortunately the ones I've found so far are really expensive. Motion Control Products supply a range of cylindrical and planar voice coil motors which are, in effect, direct drive linear motors that can positioned at high speed with high acceleration depending on the application requirements. Voice coils stages are used for short travel ranges, typically on the order of 25mm (1 inch) or below. Read about servo actuators that function as end effectors. A very important feature of voice coil actuators is the extremely low hysteresis, typically two orders of magnitude less than proportional solenoids. Wenn Jan 5, 2018 · Yesterday, a friend asked me a question, the voice coil motor and linear motor difference? , Today with Mao Xiaobian and we talk about the difference between voice coil motor and linear motor. Jul 10, 2019 · A Halbach permanent magnet (PM) tubular linear voice coil motor (LVCM) with a semi-closed structure is developed to enhance the thrust density in this study. It provides the motive force to the cone by the reaction of a magnetic field to the current passing through it. These direct-drive, zero backlash, cog-free devices are the ideal solution for controlling precision and high accuracy motion. This design permits high-speed motion and accurate positioning. H2W Technologies is a manufacturer of limited angle torque motors, also known as rotary voice coil actuators and limited rotation motors. A voice coil actuator, also called a voice coil motor (VCM), is an electromagnetic linear actuator where the magnet is fixed and the coil is mobile. When it comes to linear motion, engineers often face two choices: voice-coil actuators (VCAs) or solenoids. Static analysis calculates Lorentz force versus current and actuator positions, compared to data in [3]. Voice coil actuators and motors generate force when subjected to an electrical current or magnetic field. Oct 26, 2023 · Moving coil actuators are precise linear motion systems used in medical, aerospace, and manufacturing applications, offering high accuracy and speed. A voice coil actuator is basically the same design as a linear motor, but with one winding instead of a series of multiple windings. Generally, the end of conventional LVCM i Oct 23, 2015 · The question of whether to use voice coil actuators or solenoids for small displacement motion control applications comes up often. Take a read of our application bulletin about driving LRA vibration motors to learn more. Our High Speed Linear Actuators, based on advanced moving magnet actuator (MMA) technology, provide a versatile solution for applications requiring both speed and accuracy. The coils of the PSM motor surrounds the magnets allowing for optimal use of magnetic flux which makes the air gap non-critical and allows for max efficiency as the motor requires less current and mass to produce similar force ranges when compared to other brushless linear motors. H2W Technologies is a manufacturer of linear motors and positioning stages, which include: voice coils actuators, brushless linear motors, limited angle torque motors, linear induction motors, linear stepper motors, and multi-axis gantry systems. Moving Coil Actuators: Understanding the Technology and Its Applications Introduction Moving coil actuators, also known as voice coil actuators or linear motors, are a type of direct drive linear motion system that offer high precision, fast What is a Voice Coil Motor? Voice coil motors (VCM) or voice coil actuators (VCA) are non-commutated DC linear actuators that consist of a single-pole permanent magnet and a copper coil. Voice Coil Motors, Actuators, Stages, Encoders, Gantries, Drivers and Contrllers The third option in actuator technology, the voice-coil motor (VCM) with spring return, is the smallest, lowest-cost solution for autofocus on the market today; it is also the simplest to implement. Anstatt eines Rotors und Stators, die sich drehen, "entrollt" ein Linearmotor effektiv einen Rotationsmotor und dehnt sein Magnetfeld und seine Spule in einer geraden Linie aus. These advantages make it perfect replacement of conventional electric motor in applications where very precise positioning is needed. Applying a voltage across the terminals of the motor causes the motor to move to one direction. Kuncinya PI’s high-performance direct-drive motorized linear actuators provide a unique combination of high accuracy and velocity. Linear DC Motors, Voice Coil Motors (VCM) or Voice Coil Actuators (VCA) are the simplest type of electric motors. Comprising just two main components—the magnetic housing and the coil—they operate on a straightforward principle. A non-commutated DC linear actuator, typically referred to as a voice coil, is capable of a displacement in excess of 5 inches. The voice coil motor designed Feb 4, 2025 · The Linear Voice Coil Motor (VCM) actuator is a compact, accessible design and 3D-printed plastic components. The motor consists of a cylindrical magnet and cylindrical coil that are coaxially mounted. The patented technology provides for class-leading frequency response, reliability, and strength of haptic output. 5 mm Maximum Travel Current-Driven Operation High-Speed, Precise Translation Highly Responsive Acceleration and Deceleration SM-Threaded Coil Assembly Thorlabs' voice coil actuators are designed for use in applications requiring positioning with high speed or acceleration. DINGS' offers wide range of sizes for VCM (Voice Coil Motor) series & VCA (Voice Coil Actuator) from smaller to bigger diameter of dimensional motors. These moving coil motors are often found in applications where excellent control for short stroke, bidirectional linear actuation is required – in medical or optical equipment Mar 27, 2018 · A voice coil actuator, also known as a non-commutated DC linear actuator, is a type of direct drive linear motor. In its simplest form, it consists of a coil of wire (the voice coil) and a magnetic field generated by a permanent magnet. Patented The firmware V2. This application note explores the performance of a voice coil actuator, focusing on its optimization for enhanced electromagnetic and mechanical outputs, essential in precision motion applications. They are useful for their response speed, precision, and accuracy. SMAC’s voice coil actuator technology makes unique servo linear motors. VOICE COIL ACTUATORS VS MOVING MAGNET ACTUATORS Voice coil actuators have been around for many years, it is a type of direct drive linear motor. Voice coil actuators are linear actuators which are utilized in speakers and headphones for conversion of electrical signals in proper vibrations and they generate sound waves. The coil within the motor is the only moving component and is usually attached to a moveable load with a device such as a voice coil valve. Modern day voice coil motors (VCM) can be found in many precision systems that have limited travel. The name “voice coil” comes from one of its historically first applications What is a Voice Coil Motor? Characteristics and Selection of Voice Coil Motors Voice Coil Motors are highly precise and controllable electrical actuators, suitable for applications needing only limited displacement. NCC03-28-090-2H - H2W Technologies is a manufacturer of voice coil actuators and linear motors, for a wide range of linear motion applications. SMAC electric actuators are designed to perform at exceptionally high speeds or very low speeds and with sub-micron accuracy and repeatability. Voice coil actuators have been around for many years, it is a type of direct drive linear motor. " Meskipun keduanya mencapai gerakan linier melalui prinsip elektromagnetik, memahami nuansa di antara keduanya, terutama aplikasi khas dan karakteristik operasionalnya, sangat penting untuk desain sistem yang optimal. It consists of a permanent magnetic field assembly (permanent magnets and ferrous steel) and a coil assembly. Our actuators are unique in that force, position, and speed are totally programmable. As the need for smaller, higher-accuracy linear motion control components Voice coil motor (VCM) is a special direct drive linear motor, which can convert electric energy directly into mechanical energy without the use of transmission mechanism. Jun 25, 2018 · Voice coil actuators are linear motors which can provide precise force and positioning over a modest distance, and is easy to control Read about servo actuators that function as end effectors. Mar 13, 2025 · Voice coil motors and linear motors are two common types of motors, which have significant differences in structure and working principle. These linear motor axes are designed to work without intermediate transmission mechanisms, allowing for direct, efficient movement. VCMs are two-lead, single phase motors that do not require commutation, resulting in simple operation. What is a linear motor? Linear motors are a special class of synchronous brushless servo motors. Apr 25, 2025 · Voice Coil Actuators vs Linear Motors: Unraveling the Differences In the realm of motion control, two technologies stand out for their ability to provide precise linear movement: voice coil actuators and linear motors. They work like torque motors, but are opened up and rolled out flat. Apr 30, 2018 · A voice coil actuator, also known as a non-commutated DC linear actuator, is a type of direct drive linear motor. 5 cm diameter dual voice coil from a subwoofer driver A voice coil (consisting of a former, collar, and winding) is the coil of wire attached to the apex of a loudspeaker cone. At first glance, their functions might s Ee m similar, but a deeper dive reveals distinct characteristics that make each suitable for specific applications. g. Linear Voice Coil Motors Linear DC Motors, Voice Coil Motors (VCM) or Voice Coil Actuators (VCA) are the simplest type of electric motors. The following will introduce the characteristics and differences of these two motors in detail. It functions through the interaction between a magnetic field and a current-carrying coil, enabling it to provide precise and responsive motion. Jun 19, 2012 · This file type includes high resolution graphics and schematics when applicable. Known also as non-commutated DC linear actuator, the voice coil is simple to control, provides high acceleration and speed, presents a compact and lightweight Oct 26, 2023 · A Voice Coil Motor (VCM) is a specialized form of linear actuator, primarily designed to provide highly precise, proportional control movements. It has linear control characteristics, zero hysteresis, zero cogging and infinite position sensitivity. Linear Voice Coil Actuators VM - precise control of force and position Voice coil motors can develop proportional force in both directions by reversing the polarity. Through the electromagnetic interaction between a coil assembly (primary part) and a permanent magnet assembly (secondary part), the electrical energy is converted to linear mechanical energy with a high level of efficiency. The V-273/5/7 high-speed, closed loop linear actuator family shown below come with a force sensor option, useful in applications such as switch testing or touch surface sensitivity Voice Coil Motors (VCMs), also known as Voice Coil Actuators (VCAs) or Linear DC Motors, embody the epitome of simplicity in electric motor design. Voice coils are single phase linear motors with a limited travel of less than one electrical cycle. Flat voice coil actuators - when space is limited Voice coil actuators with a flat design are suitable for applications with tight installation conditions. E-MotionSupply was founded in 2014 by E-Motion America, with more than 25 years of experience in the motion control industry as distribution, solution design, system integration, custom design, and manufacturing. In Voice Coil Motor Characteristics Voice Coil Motors are highly controllable electrical actuators suitable for applications needing only limited displacement. The voice coil is currently used for wide range of applications. Engineers can use our handy Coil Calculator tool to compare performance and get a “ballpark” idea of which product will work best within a particular application. Furthermore, it uses examples to show how the performance characteristics of the various motor types can be adapted to the A voice coil is a kind of linear actuator, it moves a given mass along a line. A niche area of motion control is found in voice coils. The voice coil was used to vibrate the speaker cone and create sound waves. These direct driven, cogging and backlash free moving coil motors have a low coil mass and therefore a very short response time. Nov 1, 2025 · In this article, we will compare traditional linear actuators with voice coil linear actuators to help you understand the differences and choose the right one for your needs. The name “voice coil” comes from one of its historically first applications: vibrating the paper cone of a loudspeaker. They provide high velocity with zero wear and motion ranges typically up to 1 inch. This article explains the key differences between each product and why you might choose one over the other for your application. This makes it a superior alternative to traditional electric motors, ideal for applications requiring precise positioning. On the end of the voice coil actuator will be a small load (let's just imagine a 10 oz cube), screwed onto the end of the shaft. These factors are important because camera modules with autofocus are currently the highest-volume products in this market. Electrodynamic simulation computes mechanical outputs. Acceleration of >500G is possible with custom devices Nov 29, 2024 · A Voice Coil Motor (VCM) is a type of linear actuator that operates on the principle of Lorentz force. Jun 18, 2018 · The voice-coil actuator is a linear motor which can provide precise force and positioning over a modest distance, and is easy to control. Actuators are used for a wide range of applications. They compete most directly against moving-magnet rotary motors and pneumatic drives Oct 26, 2023 · Voice coil actuators are widely used in applications requiring high precision and fast response times, such as optical systems and robotic systems. Apr 2, 2025 · The linear voice coil motor (VCM) is a direct drive and hysteresis-free device used for providing highly accurate linear motion. Known also as non-commutated DC linear actuator, the voice coil is simple to control, provides high acceleration and speed, presents a compact and lightweight structure. With adjustable parameters, our linear voice coil actuator ensures smooth motions and enhanced productivity. Focus on motion control and robotics application technology, serving the global high-end manufacturing industry and becoming a leader in industry application technology. Whether your application demands fast, repeatable movements or consistent high-force output, our high speed linear actuators deliver unmatched performance. Oct 26, 2023 · A voice coil linear motor, also known as a voice coil actuator, is a type of direct drive linear motor that operates based on the Lorentz force principle. Integrated linear encoder for reliable position control and repeat able accuracy. This is what a basic cross section of a voice coil actuator looks like: The name "voice coil" comes from their use in speakers: But they are also used in hard disks for their high speed, precision actuation: Because the moving coil elements of these actuators don't require Jul 9, 2019 · I am looking at trying to position control a voice coil actuator (something like these). Easy integration by coupling the guided load to the moving runner. Linear motor moving coil mounted to the sides of an air bearing carriage that rides on a T-shaped rail that is fully supported along its length. 10 kHz servo update rate. It has low electrical and mechanical time constants and a high output power to weight and volume ratio. For longer travel ranges, 3-phase linear motor stages are often the better choice, providing higher forces. When a current passes through the coil, it generates a force that moves the bobbin back and forth along the axis of the motor. Sensata | BEI Kimco offers a wide variety of linear and rotary Voice Coil Actuators (VCA). Moticont provides designs and manufactures linear motors, positioning stages, and fully integrated single/multi-axis positioning systems including Voice Coil Linear Actuators, Linear Stepper Motor, Linear Induction Motor and many more. VCM has the advantages of simple structure, good rigidity, fast response, silence, high linearity, no cogging force, no pulsation et al. Linear Motion Specialist Based on Stepper Motor Linear Actuators, DINGS’ can provide various Linear Motion products with Lead and Ball screw, Guide supported actuators, Electrical Cylinders, Voice Coil Motors and others with appropriate drives & controllers. Feb 27, 2016 · Voice coil actuators, or non-commutated DC linear actuators, consist of a permanent magnetic field assembly (permanent magnets and ferrous steel) and a coil assembly. Jul 7, 2025 · If your application requires ultra-high precision, fast response, smooth motion, and relatively short strokes (e. Common linear motors typically offer more force and a greater travel range where needed, compared with voice coil actuators. They are currently used for a wide range of applications, including moving much larger masses. A 7. Voice coil on the principle of lorentz force where a current carrying wire in a magnetic field creates a mechanical force. Features Linear Voice Coil Motors Direct Force Drive for High Purity of Motion Up to 63. These linear actuators use a Aug 21, 2024 · A Voice Coil Motor (VCM) is a type of direct-drive actuator that can operate in either linear or rotary motion. Comparison of the force characteristics vs displacement, and vs current, for voice coil devices and solenoid actuators shows the difference between these devices. NCM01-04-001-2IBH - H2W Technologies is a manufacturer of voice coil actuators and linear motors, for a wide range of linear motion applications. It consists of a coil, permanent magnets, steel washers, a housing structure, and feedback components, each of which contributes to the actuator’s linear motion and feedback functionality. Extended Lifetime For Linear Vibrators Unlike most vibration motors which have an electromechanical commutation, LRA vibration motors are effectively brushless as they use a voice-coil to drive the mass. Voice Coil Actuators (VCAs), also referred to as Voice Coil Motors (VCMs), take haptic feedback to the next level. Named after the coil in loudspeakers, which operates under similar principles, VCMs find use in numerous applications, ranging from hard disk drives to auto-focus mechanisms in cameras. A comparison of 3 common types of actuators: voice coil actuators, linear motors and ultrasonic piezo actuators. Voice coil actuators are typically used in focusing applications, oscillatory systems, mirror tilting, and miniature position control. With capabilities spanning from 10nm to 100mm, it excels in nano- and In this post, we discuss: the differences between piezo actuators, and the more traditional haptic actuators: eccentric rotating mass (ERM) motors, and linear resonant actuators (LRA). SMAC Moving Coil Actuators SMAC Moving Coil Actuators is a leading manufacturer of precision programmable electric actuators based on moving coil technology. It consists of a coil of wire, usually housed in a permanent magnetic field, which generates a force when current is passed through the coil. A non-commutated DC linear actuator Jul 8, 2022 · By altering the frequency at which the voice coil drives the cone, sound can be reproduced in the air. 19 mm) enameled copper wire, with a total of 588 turns Voice coil actuators are linear actuators which are utilized in speakers and headphones for conversion of electrical signals in proper vibrations and they generate sound waves. fpaf yybisgw yeup ingga xvukgu suse tdh yvzbytc qnjibc jjgl kyqdpfc fhqc detm ekcqdcp jviun