88 relations: Accelerometer, Actuator, Amplifier, Amplitude, Antenna (radio), Audio signal, Automation, Backlash (engineering), Cathode ray tube, Coherence (physics), Control system, Disk read-and-write head, Dynamic range, Electric motor, Electrical resistance and conductance, Electro-galvanic oxygen sensor, Electroactive polymers, Electromagnetic radiation, Electrometer, Energy, Energy transformation, Fluorescent lamp, Galvanometer, Gear train, Geiger–Müller tube, Geophone, Hall effect sensor, Headphones, Horn analyzer, Human, Hydrogen sensor, Hydrophone, Hysteresis, Incandescent light bulb, Laser diode, Light-emitting diode, Linear motor, Linear variable differential transformer, List of sensors, Load cell, Loudspeaker, Magnetic cartridge, Magnetic field, Magnetic storage, Magnetism, Mass flow sensor, Measuring instrument, Microelectromechanical systems, Microphone, Motion (physics), ..., Noise (electronics), Noise (signal processing), PH meter, Phonograph, Photodetector, Photodiode, Photoelectric effect, Photomultiplier, Photoresistor, Pickup (music technology), Piezoelectricity, Potentiometer, Pressure sensor, Radio receiver, Radio wave, Reflection (physics), Repeatability, Resistance thermometer, Robot, Rotary variable differential transformer, Sensor, Signal, Software, Sound, Strain gauge, String potentiometer, Tactile sensor, Tactile transducer, Tape head, Thermistor, Thermocouple, Transmitter, Ultrasonic transducer, Ultrasound, Vibrating structure gyroscope, Vibration-powered generator, Voice coil, Voltage. Expand index (38 more) » « Shrink index
An accelerometer is a device that measures proper acceleration.
An actuator is a component of a machine that is responsible for moving and controlling a mechanism or system, for example by opening a valve.
An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the power of a signal (a time-varying voltage or current).
The amplitude of a periodic variable is a measure of its change over a single period (such as time or spatial period).
In radio, an antenna is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver.
An audio signal is a representation of sound, typically as an electrical voltage for analog signals and a binary number for digital signals.
Automation is the technology by which a process or procedure is performed without human assistance.
In mechanical engineering, backlash, sometimes called lash or play, is a clearance or lost motion in a mechanism caused by gaps between the parts.
The cathode ray tube (CRT) is a vacuum tube that contains one or more electron guns and a phosphorescent screen, and is used to display images.
In physics, two wave sources are perfectly coherent if they have a constant phase difference and the same frequency, and the same waveform.
A control system manages, commands, directs, or regulates the behavior of other devices or systems using control loops.
Disk read/write heads are the small parts of a disk drive which move above the disk platter and transform the platter's magnetic field into electrical current (read the disk) or, vice versa, transform electrical current into magnetic field (write the disk).
Dynamic range, abbreviated DR, DNR, or DYR is the ratio between the largest and smallest values that a certain quantity can assume.
An electric motor is an electrical machine that converts electrical energy into mechanical energy.
The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor.
An electro-galvanic fuel cell is an electrochemical device which consumes a fuel to produce an electrical output by a chemical reaction.
Electroactive polymers, or EAPs, are polymers that exhibit a change in size or shape when stimulated by an electric field.
In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space-time, carrying electromagnetic radiant energy.
An electrometer is an electrical instrument for measuring electric charge or electrical potential difference.
In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.
Energy transformation, also termed as energy conversion, is the process of changing energy from one of its forms into another.
A fluorescent lamp, or fluorescent tube, is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light.
A galvanometer is an electromechanical instrument used for detecting and indicating electric current.
A gear train is a mechanical system formed by mounting gears on a frame so the teeth of the gears engage.
The Geiger–Müller tube or G–M tube is the sensing element of the Geiger counter instrument used for the detection of ionizing radiation.
A geophone is a device that converts ground movement (velocity) into voltage, which may be recorded at a recording station.
A Hall effect sensor is a transducer that varies its output voltage in response to a magnetic field.
Headphones (or head-phones in the early days of telephony and radio) are a pair of small loudspeaker drivers worn on or around the head over a user's ears.
A horn analyzer is an instrument used to determine the resonance and anti-resonance frequencies of ultrasonic parts such as transducers, sonotrodes and acoustic sets, which are used in ultrasonic welding, cutting, cleaning and other industrial applications.
Humans (taxonomically Homo sapiens) are the only extant members of the subtribe Hominina.
A hydrogen sensor is a gas detector that detects the presence of hydrogen.
A hydrophone (Ancient Greek ὕδωρ.
Hysteresis is the dependence of the state of a system on its history.
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated to such a high temperature that it glows with visible light (incandescence).
A laser diode, (LD), injection laser diode (ILD), or diode laser is a semiconductor device similar to a light-emitting diode in which the laser beam is created at the diode's junction.
A light-emitting diode (LED) is a two-lead semiconductor light source.
A linear motor is an electric motor that has had its stator and rotor "unrolled" so that instead of producing a torque (rotation) it produces a linear force along its length.
The linear variable differential transformer (LVDT) (also called linear variable displacement transformer, linear variable displacement transducer, or simply differential transformer) is a type of electrical transformer used for measuring linear displacement (position).
This is a list of sensors sorted by sensor type.
A load cell is a transducer that is used to create an electrical signal whose magnitude is directly proportional to the force being measured.
A loudspeaker (or loud-speaker or speaker) is an electroacoustic transducer; which converts an electrical audio signal into a corresponding sound.
A magnetic cartridge, more commonly called a phonograph cartridge or phono cartridge or (colloquially) a pickup, is an electromechanical transducer used in the playback of analog sound recordings called records on a record player, now commonly called a turntable because of its most prominent component but formally known as a phonograph in the US and a gramophone in the UK.
A magnetic field is a vector field that describes the magnetic influence of electrical currents and magnetized materials.
Magnetic storage or magnetic recording is the storage of data on a magnetized medium.
Magnetism is a class of physical phenomena that are mediated by magnetic fields.
A mass (air) flow sensor (MAF) is a sensor used to determine the mass flow rate of air entering a fuel-injected internal combustion engine.
A measuring instrument is a device for measuring a physical quantity.
Microelectromechanical systems (MEMS, also written as micro-electro-mechanical, MicroElectroMechanical or microelectronic and microelectromechanical systems and the related micromechatronics) is the technology of microscopic devices, particularly those with moving parts.
A microphone, colloquially nicknamed mic or mike, is a transducer that converts sound into an electrical signal.
In physics, motion is a change in position of an object over time.
In electronics, noise is an unwanted disturbance in an electrical signal.
In signal processing, noise is a general term for unwanted (and, in general, unknown) modifications that a signal may suffer during capture, storage, transmission, processing, or conversion.
A pH meter is a scientific instrument that measures the hydrogen-ion activity in water-based solutions, indicating its acidity or alkalinity expressed as pH.
The phonograph is a device for the mechanical recording and reproduction of sound.
Photosensors or photodetectors are sensors of light or other electromagnetic energy.
A photodiode is a semiconductor device that converts light into an electrical current.
The photoelectric effect is the emission of electrons or other free carriers when light shines on a material.
Photomultiplier tubes (photomultipliers or PMTs for short), members of the class of vacuum tubes, and more specifically vacuum phototubes, are extremely sensitive detectors of light in the ultraviolet, visible, and near-infrared ranges of the electromagnetic spectrum.
A photoresistor (or light-dependent resistor, LDR, or photo-conductive cell) is a light-controlled variable resistor.
A pickup is a transducer that captures or senses mechanical vibrations produced by musical instruments, particularly stringed instruments such as the electric guitar, and converts these to an electrical signal that is amplified using an instrument amplifier to produce musical sounds through a loudspeaker in a speaker enclosure.
Piezoelectricity is the electric charge that accumulates in certain solid materials (such as crystals, certain ceramics, and biological matter such as bone, DNA and various proteins) in response to applied mechanical stress.
A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider.
A pressure sensor is a device for pressure measurement of gases or liquids.
In radio communications, a radio receiver (receiver or simply radio) is an electronic device that receives radio waves and converts the information carried by them to a usable form.
Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light.
Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated.
Repeatability or test–retest reliability is the closeness of the agreement between the results of successive measurements of the same measurand carried out under the same conditions of measurement.
Resistance thermometers, also called resistance temperature detectors (RTDs), are sensors used to measure temperature.
A robot is a machine—especially one programmable by a computer— capable of carrying out a complex series of actions automatically.
A rotary variable differential transformer (RVDT) is a type of electrical transformer used for measuring angular displacement.
In the broadest definition, a sensor is a device, module, or subsystem whose purpose is to detect events or changes in its environment and send the information to other electronics, frequently a computer processor.
A signal as referred to in communication systems, signal processing, and electrical engineering is a function that "conveys information about the behavior or attributes of some phenomenon".
Computer software, or simply software, is a generic term that refers to a collection of data or computer instructions that tell the computer how to work, in contrast to the physical hardware from which the system is built, that actually performs the work.
In physics, sound is a vibration that typically propagates as an audible wave of pressure, through a transmission medium such as a gas, liquid or solid.
A strain gauge is a device used to measure strain on an object.
A string potentiometer is a transducer used to detect and measure linear position and velocity using a flexible cable and spring-loaded spool.
A tactile sensor is a device that measures information arising from physical interaction with its environment.
A tactile transducer or "bass shaker" is a device which is made on the principle that low bass frequencies can be felt as well as heard.
A tape head is a type of transducer used in tape recorders to convert electrical signals to magnetic fluctuations and vice versa.
A thermistor is a type of resistor whose resistance is dependent on temperature, more so than in standard resistors.
A thermocouple is an electrical device consisting of two dissimilar electrical conductors forming electrical junctions at differing temperatures.
In electronics and telecommunications, a transmitter or radio transmitter is an electronic device which produces radio waves with an antenna.
Ultrasonic transducers or ultrasonic sensors are a type of acoustic sensor divided into three broad categories: transmitters, receivers and transceivers.
Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing.
A vibrating structure gyroscope, defined by the IEEE as a Coriolis vibratory gyroscope (CVG), is a gyroscope that uses a vibrating structure to determine the rate of rotation.
A vibration powered generator is a type of electric generator that converts the kinetic energy from vibration into electrical energy.
A voice coil (consisting of a former, collar, and winding) is the coil of wire attached to the apex of a loudspeaker cone.
Voltage, electric potential difference, electric pressure or electric tension (formally denoted or, but more often simply as V or U, for instance in the context of Ohm's or Kirchhoff's circuit laws) is the difference in electric potential between two points.