A smoke detector is a device that senses smoke, typically as an indicator of fire. Smoke detectors/Alarms are usually housed in plastic enclosures, typically...

radar detector detector (RDD) is a device used by police or law enforcement in areas where radar detectors are declared illegal. Radar detectors are built...

humidity, air pollution, fire, health, security and lighting. MOS gas detector sensors are used to detect carbon monoxide, sulfur dioxide, hydrogen sulfide...

neutrino detectors must be very large to detect a significant number of neutrinos. Neutrino detectors are often built underground, to isolate the detector from...

A metal detector is an instrument that detects the nearby presence of metal. Metal detectors are useful for finding metal objects on the surface, underground...

05528°E / 46.23556; 6.05528 ATLAS is the largest general-purpose particle detector experiment at the Large Hadron Collider (LHC), a particle accelerator at...

A polygraph, often incorrectly referred to as a lie detector test, is a junk science device or procedure that measures and records several physiological...

A phase detector or phase comparator is a frequency mixer, analog multiplier or logic circuit that generates a signal which represents the difference in...

A crystal detector is an obsolete electronic component used in some early 20th century radio receivers that consists of a piece of crystalline mineral...

kilometer. Similar to its predecessor, the Antarctic Muon And Neutrino Detector Array (AMANDA), IceCube consists of spherical optical sensors called Digital...

assessed. Other detectors include the Hall electrolytic conductivity detector (ElCD), helium ionization detector (HID), infrared detector (IRD), photo-ionization...

envelope detector, the product detector takes the product of the modulated signal and a local oscillator, hence the name. A product detector is a frequency...

nuclear physics, and nuclear engineering, a particle detector, also known as a radiation detector, is a device used to detect, track, and/or identify ionizing...

An infrared detector is a detector that reacts to infrared (IR) radiation. The two main types of detectors are thermal and photonic (photodetectors). The...

Coincidence detector or coincidence detection can refer to: Coincidence circuit, a device that can detect simultaneous electric signals Coincidence detection...

A motion detector is an electrical device that utilizes a sensor to detect nearby motion. Such a device is often integrated as a component of a system...

A heat detector is a fire alarm device designed to respond when the convected thermal energy of a fire increases the temperature of a heat sensitive element...

A Cherenkov detector (pronunciation: /tʃɛrɛnˈkɔv/; Russian: Черенко́в) is a particle detector using the speed threshold for light production, the speed-dependent...

An envelope detector (sometimes called a peak detector) is an electronic circuit that takes a (relatively) high-frequency signal as input and outputs the...

Common Pipistrelle Common Pipistrelle call heard on a heterodyne bat detector - 68 KB. This is a typical echolocation call with "feeding buzzes" when it...

A photoionization detector or PID is a type of gas detector. Typical photoionization detectors measure volatile organic compounds and other gases in concentrations...

segmented detectors with add-back (see: clover (detector)). The voltage pulses produced for every gamma ray that interacts within the detector volume are...

Look up lie detector in Wiktionary, the free dictionary. Lie detector is the popular term for a polygraph, a device that measures and records physiological...

A carbon monoxide detector or CO detector is a device that detects the presence of the carbon monoxide (CO) gas to prevent carbon monoxide poisoning....

A radar detector is an electronic device used by motorists to detect if their speed is being monitored by police or law enforcement using a radar gun....

Silicon drift detectors (SDDs) are X-ray radiation detectors used in x-ray spectrometry (XRF and EDS) and electron microscopy. Their chief characteristics...

A flame detector is a sensor designed to detect and respond to the presence of a flame or fire, allowing flame detection. Responses to a detected flame...

TV detector vans are vans which contain equipment that can detect the presence of television sets in use. These vans have been used by the General Post...

up detector in Wiktionary, the free dictionary. A detector is a device capable of registering a specific substance or physical phenomenon. Detector may...

In electronic signal processing, a square law detector is a device that produces an output proportional to the square of some input. For example, in demodulating...