Explosive vapor detectors (EVD) are explosives detection instruments whose principle of operation is the selective analysis of collected vapor samples...

DMNB, it can be detected with an explosive vapor detector before it has been detonated. A variety of methods for explosive residue analysis may be used to...

because most explosives have a low vapor pressure . The detector with the highest sensitivity is the best in detecting vapors of explosives reliably. Portable...

per million (ppm). The photoionization detector is an efficient and inexpensive detector for many gas and vapor analytes. PIDs produce instantaneous readings...

The Fido explosives detector is a battery-powered, handheld sensory device that uses amplifying fluorescent polymer (AFP) materials to detect trace levels...

spectrometric vapor analysis techniques, such as secondary electrospray ionization (SESI-MS), could support canine training for explosive detection. This...

A gas detector is a device that detects the presence of gases in a volume of space, often as part of a safety system. A gas detector can sound an alarm...

tandem with metal detectors. Acoustic methods can sense the cavity created by mine casings. Sensors have been developed to detect vapor leaking from landmines...

explosimeter is a gas detector which is used to measure the amount of combustible gases present in a sample. When a percentage of the lower explosive limit (LEL)...

Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), in which the refrigerant undergoes phase changes, is one of the many...

ton of explosives." The Navy's counterterrorism technology task force tested Sniffex and concluded "The Sniffex handheld explosives detector does not...

pre-mixed flame propagates through an explosive or a mixture of fuel and oxidizer. Deflagrations in high and low explosives or fuel–oxidizer mixtures may transition...

or shock. Until about 2015, explosives detectors were not set to detect non-nitrogenous explosives, as most explosives used preceding 2015 were nitrogen-based...

chemical synthesis, but it is best known as an explosive material with convenient handling properties. The explosive yield of TNT is considered to be the standard...

burning. The lower flammability limit or lower explosive limit (LFL/LEL) represents the lowest air to fuel vapor concentration required for combustion to take...

An aspirating smoke detector (ASD) is a system used in active fire protection, consisting of a central detection unit which draws air through a network...

chemist, inventor, and a pioneer in explosives detection technology. He invented the explosives vapour detector, EVD-1, a portable bomb detection instrument...

vapor deposition (CVD), creates a carbon plasma over a substrate onto which the carbon atoms deposit to form diamond. Other methods include explosive...

conventional solid and liquid explosives, as well as in reactive gases. TNT, dynamite, and C4 are examples of high power explosives that detonate. The velocity...

(formerly Thermedics), which produces the EGIS, a GC–MS-based line of explosives detectors. The other two manufacturers are Barringer Technologies, now owned...

leak into a building or other confined space may gradually build up an explosive or lethal gas concentration. Natural gas leaks and the escape of refrigerant...

Fire alarm systems Aspirating smoke detector Carbon monoxide detector Circuit integrity Explosive gas leak detector Fire alarm call box Fire alarm control...

is also used in fluorescent lighting. Electricity passed through mercury vapor in a fluorescent lamp produces short-wave ultraviolet light, which then...

instruments give immediate data, and include colorimetric indicators such as gas detector tubes, and electronic devices such as gas monitors and aerosol particle...

lead(II) perchlorate in methanol is explosive. Lead perchlorate has a high nucleon density, making it a viable detector for hypothetical proton decay. H...

Fire alarm systems Aspirating smoke detector Carbon monoxide detector Circuit integrity Explosive gas leak detector Fire alarm call box Fire alarm control...

XM93. This vehicle can keep up with moving troops, detecting liquid and vapor hazards. Newer versions, like the M1135 nuclear, biological, and chemical...

Fire alarm systems Aspirating smoke detector Carbon monoxide detector Circuit integrity Explosive gas leak detector Fire alarm call box Fire alarm control...

buildings). This is due to the improved building codes incorporating fire detectors; technologically advanced firefighting equipment, which includes better...

gas, typically from a gas leak. In household accidents, the principal explosive gases are those used for heating or cooking purposes such as natural gas...