https://sensorwiki.org/ 2026-05-01T01:05:50+00:00 https://sensorwiki.org/ https://sensorwiki.org/lib/tpl/writr/images/favicon.ico text/html 2022-04-07T15:56:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://sensorwiki.org/actuators/erm?rev=1649347014&do=diff ERM Motors ERM (Eccentric Rotating Mass) motors are a form of vibration motors that work by spinning an off-center mass. The radial forces that are generated from this movement cause the motor to oscillate back and forth, resulting in vibration. ERM motors are very affordable options for generating simple vibrations. text/html 2018-11-01T18:55:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://sensorwiki.org/actuators/hydraulics_and_pneumatics?rev=1541098555&do=diff Hydraulics and Pneumatics Hydraulics and Pneumatics are two types of actuators that convert the fluid pressure into mechanical motion. Although their application is different they are bough under the same section as they work under the same principles and have similar configurations text/html 2018-11-01T18:55:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://sensorwiki.org/actuators/piezoelectric?rev=1541098555&do=diff Piezoelectricity Piezoelectricity was discovered in Rochelle Salt in 1880 by Pierre and Jacques Curie. Piezoelectricity is the ability of certain materials to develop an electric charge that is proportional to a direct applied mechanical stress. These materials also have the ability to do the opposite - they will deform proportionally to an applied electric field. text/html 2018-11-01T18:55:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://sensorwiki.org/actuators/rotary_motor?rev=1541098555&do=diff Rotary Motors The most common form of electrical motors are rotary motors. Rotary motors can be designed to operate on DC power, AC power, or both. Principles of Operation The majority of electric motors operate using electromagnetic principles. Every motor contains at least two parts: a rotor, which is a cylindrical coil of wire which spins around its axis; and a stator or armature, which is a static housing which creates a magnetic field. The interaction of the magnetic fields generated b… text/html 2021-03-24T13:06:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://sensorwiki.org/actuators/servo_motor?rev=1616591200&do=diff Servo Motors Servomotors allow for easily controlled rotation using either a rotational or linear actuator. While often more expensive than other types of rotational motors, such as stepper motors, they contain feedback mechanisms that allow them to measure their own angular position, with some more expensive models also tracking their angular speed. These systems can help reduce overshoot and increase angular accuracy, while also allowing them to be position-aware upon their power on, without … text/html 2018-11-01T18:55:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://sensorwiki.org/actuators/solenoid?rev=1541098555&do=diff Solenoids Solenoids are simple and cheap linear actuators that are widely used in the construction of contactors, circuit breakers, and solenoid valves. The majority of the solenoids generate force only in one direction and they are used as on-off actuators text/html 2022-03-23T03:39:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://sensorwiki.org/actuators/stepper_motor?rev=1648006761&do=diff Stepper Motors Stepper motors allow for the fine control of rotations and can provide high torque at low speeds. With modifications to their control signals, they can be used to complete up to ¼ of their rated rotation accuracy, allowing for an even higher level of rotational accuracy if needed. They contain no feedback mechanisms which keeps their price low but also makes their position unaware upon turning on, so calibration circuitry may be necessary. text/html 2018-11-01T18:55:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://sensorwiki.org/actuators/voice_coil?rev=1541098555&do=diff Voice Coil Actuators A voice coil actuator consists of a current carrying coil interacting with a permanent magnet. They received their name due to their common use in audio loudspeakers. Voice coils are also commonly used in the read/write heads of computer hard drives. text/html 2018-11-01T18:55:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://sensorwiki.org/actuators/welcome?rev=1541098555&do=diff Actuators