Optical Smoke Detector1: Optical chamber 2: Cover3: Case moulding 4: Photodiode ( detector ) 5: Infrared LED

The term array is often used to mean array data type, a kind of data type provided by most high-level programming languages that consists of a collection of values or variables that can be selected by one or more indices computed at run-time.

The term is also used, especially in the description of algorithms, to mean associative array or " abstract array ", a theoretical computer science model ( an abstract data type or ADT ) intended to capture the essential properties of arrays.

A one-dimensional array ( or single dimension array ) is a type of linear array.

In the given example the array can contain 10 elements of any value available to the type.

This means that array a has 3 rows and 2 columns, and the array is of integer type.

Programming languages commonly associated with buffer overflows include C and C ++, which provide no built-in protection against accessing or overwriting data in any part of memory and do not automatically check that data written to an array ( the built-in buffer type ) is within the boundaries of that array.

To avoid this, the pointer type is delimited by a known bound, the size of the array.

* An array data structure stores a number of elements of the same type in a specific order.

The specification adds support for accessing the array descriptor from C and allows to ignore the type and rank of arguments.

Arrays are a fundamental type and many standard functions natively support array operations allowing work on arrays without explicit loops.

Oberon is designed to be a ' safe ' language ; it employs array bounds checking, garbage collection and strong type checking.

Sophisticated data structures can be built on the array and dictionary types, but cannot be declared to the type system, which sees them all only as arrays and dictionaries, so any further typing discipline to be applied to such user-defined " types " is left to the code that implements them.

The most common type of structured P2P networks implement a distributed hash table ( DHT ), in which a variant of consistent hashing is used to assign ownership of each file to a particular peer, in a way analogous to a traditional hash table's assignment of each key to a particular array slot.

Wright argued that it does not require a trained anthropologist to classify an array of Englishmen, West Africans, and Chinese with 100 % accuracy by features, skin color, and type of hair despite so much variability within each of these groups that every individual can easily be distinguished from every other.

It is much more important to the metabolism of plants, particularly many grasses, and silicic acid ( a type of silica ) forms the basis of the striking array of protective shells of the microscopic diatoms.

A string is generally understood as a data type and is often implemented as an array of bytes ( or words ) that stores a sequence of elements, typically characters, using some character encoding.

A string may also denote more general array data types and / or other sequential data types and structures ; terms such as < data type > string or string of < data types > are sometimes used to denote strings in which the stored data represents other data types.

A linear charge coupled device ( CCD ) array with 200 pixels is used as the detector.

Fluorescence in several wavelengths can be detected by an array detector, to detect compounds from HPLC flow.

Serial time encoded amplified microscopy ( STEAM ) is an imaging method that provides ultrafast shutter speed and frame rate, by using optical image amplification to circumvent the fundamental trade-off between sensitivity and speed, and a single-pixel photodetector to eliminate the need for a detector array and readout time limitations The method is at least 1000 times faster than the state-of-the-art CCD and CMOS cameras.

The main limitation of this type is the bulk and inertia of the equipment ( X-ray tube assembly and detector array on the opposite side of the circle ) which limits the speed at which the equipment can spin.

However, far fewer CTs of this design have been produced, mainly due to the higher cost associated with building a much larger X-ray tube and detector array.

The detector is typically a photomultiplier tube, a photodiode, a photodiode array or a charge-coupled device ( CCD ).

A pulse induction metal detector with an array of coils

The schematic of an HPLC instrument typically includes a sampler by which the sample mixture is injected into the HPLC, one or more mechanical pumps for pushing liquid through a tubing system, a separation column, a digital analyte detector ( e. g. a UV / Vis, or a photodiode array ( PDA )) for qualitative or quantitative analysis of the separation, and a digital microprocessor for controlling the HPLC components ( and user software ).

This technique can be coupled with sensitive array detector technology.

The detectors housed scintillators and photomultipliers in an array that gave the detector its distinctive shmoo shape.

The detectors housed scintillators and photomultipliers in an array that gave the detector its distinctive shmoo shape.

P-3C clearly showing the Magnetic anomaly detector | MAD ( tail boom ) and sonobouy chutes ( array of dark spots under rear fuselage ) while Infrared | IR sensor is retracted and not visible

In such systems, the grating is fixed and the intensity of each wavelength of light is measured by a different detector in the array.

Most scanning sensors have an array of detectors such that the IFOV is the angle subtended by each detector and the AFOV is the total angle subtended by the array.

The University of Kiel helped develop this radiation detector for a Mars probe. Interdisciplinary research and a university-wide infrastructure are complemented by an array of research programs that are not included in the Excellence Clusters and collaborative research centers.

Instrumentation includes an Ultraviolet ( UV ) spectrograph with a CCD array detector, CCD array and visible light cameras, calibration lamp, optics and baffling.

A linear detector, such as a charge-coupled device ( CCD ) array is used to measure the streak pattern on the screen, and thus the temporal profile of the light pulse.

A light source and photo detector array reads the optical pattern that results from the disc's position at any one time.

The combination of the large detector array and the short and frequent exposures necessary at infrared wavelengths results in a high data rate of 200-300 GB per night.

array of Single-Photon Avalanche Diodes ( SPADs ) used the detector.

The electronic circuit connecting the photodetectors is wired so as to reflect the relative coincidence of light fluorescence as sensed by the members of the hexagon detector array.

Explorer 2 was also equipped with a wire grid array and an acoustic detector for the purpose of micrometeorite detection.

* Atomic Gravitational Wave Interferometric Sensor, or ( AGIS ), a proposed type of gravitational wave detector

A Geiger – Müller counter, also called a Geiger counter, is a type of particle detector that measures ionizing radiation.

The electrons are detected by an Everhart-Thornley detector, which is a type of scintillator-photomultiplier system.

* A particle detector ( implemented through use of an Anton type 213 Geiger-Müller tube ) to measure lower radiation ( especially near Venus ), also known as the Iowa detector, as it was provided by the University of Iowa.

* Global Technical GT200 is a dowsing type explosive detector which contains no scientific mechanism.

* Gas Electron Multiplier, a type of particle detector used in experimental particle physics

* Resistive plate chamber, a simple type of particle detector used in experimental particle physics

It is a type of gaseous ionization detector.

In the jargon of high energy physics, these devices are not called calorimeters since this term is already used for a different type of detector ( see Calorimeter ( particle physics )).

A microbolometer is a specific type of bolometer used as a detector in a thermal camera.

* Audion receiver, a type of radio receiver that was originally designed to use the Audion signal detector

Depending on the type of gas, the photon source and what reaches the detector of the instrument, either an emission line or an absorption line will be produced.

After building a larger, more sensitive detector named Super-Kamiokande, which became operational in 1996, Koshiba found strong evidence for what scientists had already suspected — that neutrinos, of which three types are known, change from one type into another in flight ; this resolves the solar neutrino problem, since early experiments could only detect one type, not all three.

Behind this grid system, an image dissector tube ( photomultiplier type detector ) with a sensitive field of view of about 38 arc-sec diameter converted the modulated light into a sequence of photon counts ( with a sampling frequency of 1200 Hz ) from which the phase of the entire pulse train from a star could be derived.

* Time projection chamber, a type of particle detector

* Thermal Conductivity Detector, a type of detector used in Gas Chromatography

Crystal radios are the simplest type of radio receiver and can be handmade with a few inexpensive parts, like an antenna wire, tuning coil of copper wire, crystal detector and earphones.

The signal processing system processes incoming signals from the detector and reproduce an image based upon the type of material and material density inside the baggage.

At the focal point is some type of structure for holding a film plate or electronic detector.

* Velocity drift chamber, a type of particle detector used to test a gas

This was a significant development as existing commercial wireless systems were heavily protected by patents ; a new type of detector would allow De Forest to market his own system.