A sensor or receiver, such as a geophone or hydrophone, gravimeter or magnetometer.

a piece of equipment for discovering the presence of something, such as metal, smoke, explosives, or changes in pressure or temperature a smoke detectorCheck pronunciation: detector

1540s, from Latin detector "uncoverer, revealer," agent noun from detectus, past participle of detegere (see detect).

A material or device that is sensitive to ionizing radiation and can display its characteristics and/or produce a signal suitable for measurement or analysis. See also radiation detection instrument.

an electronic circuit that determines the amplitude level of a signal in accordance with certain rules. The simplest type of detector consists of a resistor and a capacitor, which measures the rectifi [..]

A device used to measure the amount of electromagnetic radiation emitted by celestial objects. Frequently, detectors are used to sense light that is not visible.

A device used to measure the amount of electromagnetic radiation emitted by celestial objects. Frequently, detectors are used to sense light that is not visible.

A device that is responsive to the presence or absence of a stimulus. 2. In an AM radio receiver, a circuit or device that recovers the signal of interest from the modulated wave. Note: In FM reception, a circuit called a discriminator is used to convert frequency variations to amplitude variations. 3. In an optical communications receiver, a devic [..]

A detector is an analytical instrument which is capable of measuring the amount of tracer label in an immunoassay sample, such as scintillation counters, microplate readers, and automated immunoassay analyzers.

A material or device that is sensitive to radiation and can produce a response signal suitable for measurement or analysis. A radiation detection instrument.

A device that is sensitive to radiation and can produce a response signal suitable for measurement or analysis. A radiation detection instrument. (Basics of Radiation: Definitions, REAC/TS)

Any device used to sense the passage of a particle. Also a collection of such devices designed so that each serves a particular purpose in allowing physicists to reconstruct particle events.

A general term applied to parts of instruments which are designed to detect Ionising Radiation . Ionising radiations interact with the detector, the detector converts this interaction into a signal wh [..]

A material or device that is sensitive to radiation and can produce a response signal suitable for measurement or analysis. A radiation detection instrument.

An electronic circuit that determines the amplitude level of a signal in accordance with certain rules. The simplest type of detector consists of a resistor and a capacitor, and it measures the averag [..]

(n) any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner(n) rectifier that extracts modulation from a radio carrier wa [..]

The detector in a spectrometer captures light and outputs an electrical signal. Ocean Optics spectrometers are CCD or CMOS detectors, typically made from Silicon (in the case of UV-VIS measurements) or Indium-Gallium-Arsenide (in the case of NIR).

N M revealer; uncoverer; discloser

A switch used in the ACRS sensor assembly which responds to "G" forces.

An artificial device for object (mainly vehicle) states recognition and/or logging

A device that determines the presence of or measures the amount of energy, such as radiation.

A sensing device used for determining the presence or passage of vehicles or pedestrians. (MUTCD)

A means of detecting vehicles, usually a loop in the road connected to a detector pack which responds to the change in inductance when a vehicle passes over the loop.

A device for identifying the presence or passing of a vehicle at a particular location, often used interchangeably with sensor (see inductive loop detector). A loop is a passive detector, whereas a pe [..]

A detector for counting the number of vehicle activations at a particular location over a defined period (e.g., 30 seconds for most freeway lane detectors -- such freeway detectors often also compute [..]

A detector located upstream from an intersection to identify vehicles on an approach to extend the current green time by a fixed or decreasing amount until a phase maximum is reached.

A detector for identifying only the presence of a vehicle at a particular location, sending a binary signal to the controller to address the corresponding movement according to the current control log [..]

Any alarm device that can be connected to a security system to provide notification of an alarm event to the control panel. Door/window contacts, motion detectors, glass break detectors, and smoke det [..]

Any alarm device that can be connected to a security system to provide notification of an alarm event to the control panel. Door/window contacts, motion detectors, glass break detectors, and smoke detectors are some of the most common detectors found on a security system.

A device used to signal to the control panel if there is any movement in its range. Most detectors are now Dual Technology, combining Passive Infra-Red with Microwave or Ultrasound, providing greater [..]

The detector receives infrared radiation and converts it into an electrical signal. The size of the detector is specified in pixels.

A device in a radiometer that senses the presence and intensity of radiation. The incoming radiation is usually modified by filters or other optical components that restrict the radiation to a specifi [..]

Informal term for a metal detector

A device used to measure the amount of electromagnetic radiation emitted by celestial objects. Frequently, detectors are used to sense light that is not visible.

A device for recognizing the presence and/or the motion of vehicles in a section of the roadway.

A detector is a device or instrument designed to measure whether radioactive material is present. This can be followed up by using a properly calibrated instrument to estimate how much radioactive mat [..]

A detector is a device that receives optical signals and converts them into electrical signals.

A device that is responsive to the presence or absence of a stimulus. A mixer or converter in a superheterodyne receiver. A simple diode circuit used to detect the presents of a signal. [RF Phase Dete [..]

An instrument to detect the unbalance in a bridge circuit.