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sensitivity of leak detector

См. также в других словарях:

  • Grid-leak detector — A grid leak detector is a combination diode rectifier and audio amplifier used as a detector in vacuum tube A.M. radio receivers. In the circuit, the grid of the detector usually a low mu or medium mu triode is connected to the secondary of the… …   Wikipedia

  • Grid leak — is the small current through the grid of a thermionic valve into the circuit which feeds the grid. It is an inherent operating characteristic of triodes and other vacuum tubes.This current is caused by the small negative EMF which is present in… …   Wikipedia

  • Gas leak detection — is the detection of gas leaks with apparatus like catalytic/infrared point sensors and IR open path sensors, more recent detection methods include Ultrasonic Gas Leak Detectors.In order to detect gas leaks with traditional methods, the gas itself …   Wikipedia

  • чувствительность течеискателя — Отношение изменения сигнала течеискателя к вызывающему его изменению расхода пробного вещества через течи [ГОСТ 26790 85] Тематики техника течеискания EN sensitivity of leak detector DE Lecksucherempfindlichkeit FR sensibilité détecteur de fuites …   Справочник технического переводчика

  • Helium mass spectrometer — A helium mass spectrometer is an instrument commonly used to detect and locate small leaks. It was initially developed in the Manhattan Project during World War II to find extremely small leaks in the gas diffusion process of uranium enrichment… …   Wikipedia

  • mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph …   Universalium

  • Magnetometer — A magnetometer is a measuring instrument used to measure the strength or direction of a magnetic field either produced in the laboratory or existing in nature. Some countries such as the USA, Canada and Australia classify the more sensitive… …   Wikipedia

  • Burglar alarm — Silent alarm redirects here. For the album, see Silent Alarm (album). Burglar (or intrusion), fire and safety alarms are all electronic today. Sensors are connected to a control unit via a low voltage hardwire or narrowband RF signal which is… …   Wikipedia

  • Regenerative circuit — The regenerative circuit (or self regenerative circuit) allows an electronic signal to be amplified many times by the same vacuum tube or other active component such as a field effect transistor.Description Regenerative circuits were employed in… …   Wikipedia

  • Sterilant Gas Monitoring — Sterilant gases are compounds used by health care and other facilities to sterilize medical supplies that cannot be sterilized by heat or steam methods. The current FDA approved sterilant gases are ethylene oxide, hydrogen peroxide… …   Wikipedia

  • Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …   Wikipedia

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