detector principle

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• MicroMegas detector — The “Micromegas “ (Micro MEsh Gaseous Structure) detector is a gaseous particle detector coming from the development of wire chamber. Invented in 1992[1] by Georges Charpak and Ioannis Giomataris, the Micromegas detectors are mainly used in… …   Wikipedia

• Metal detector — A U.S. Army soldier uses a metal detector to search for weapons and ammunition in Iraq A metal detector is a device which responds to metal that may not be readily apparent. The simplest form of a metal detector consists of an oscillator… …   Wikipedia

• Gas chromatography ion detector — Many GC detectors are ion detectors with varying methods of ionizing the components eluting from the GC s column.Principle of OperationAn ion detector is analogous to a capacitor or vacuum tube. It can be envisioned as two metal grids separated… …   Wikipedia

• Kinetic inductance detector — Chip containing aluminium kinetic inductance detectors with tin absorbers. Image credit: Argonne National Lab. The kinetic inductance detector (KID) also known as a microwave kinetic inductance detector (MKID) is a type of superconducting photon… …   Wikipedia

• Harris affine region detector — In the fields of computer vision and image analysis, the Harris affine region detector belongs to the category of feature detection. Feature detection is a preprocessing step of several algorithms that rely on identifying characteristic points or …   Wikipedia

• Flame ionization detector — A flame ionization detector (FID) is a type of gas detector used in gas chromatography. The first flame ionization detector was developed in 1957 by scientists working for the CSIRO in Melbourne, Australia.… …   Wikipedia

• Semiconductor detector — A semiconductor detector is a device that uses a semiconductor (usually silicon or germanium) to detect traversing charged particles or the absorption of photons. In the field of particle physics, these detectors are usually known as silicon… …   Wikipedia

• Fermat's principle — In optics, Fermat s principle or the principle of least time is the idea that the path taken between two points by a ray of light is the path that can be traversed in the least time. This principle is sometimes taken as the definition of a ray of …   Wikipedia

• Chubb detector lock — Diagram of a Chubb detector lock A Chubb detector lock is a type of lever tumbler lock with an integral security feature which frustrates unauthorised access attempts and indicates to the lock s owner that it has been interfered with. When… …   Wikipedia

• Photoionization detector — A photoionization detector or PID is a type of gas detector. Typical photoionization detectors measure volatile organic compounds and other gases in concentrations from 1 parts per billion to 10 000 parts per million (ppm). The photoionizaton… …   Wikipedia

• Helium ionization detector — A helium ionization detector (HID) is a type of detector used in gas chromatography. PrincipleAn HID is an ion detector which uses a radioactive source to produce ions. The radioactive source ionizes helium atoms by bombarding them with emissions …   Wikipedia