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The Model EA113 was an excellent electronic multimeter, sold in the UK and abroad, in the same style as the Model 14 to 21 range. Avometer model numbers were first used by the company from 1936 (Avometer Model 7) and were used to distinguish designs with different ranges and functionality. Several "Models" were in production contemporaneously.
The M8 detector paper does not detect agents in the form of aerosols or vapors. The M8 was a Canadian invention, being first standardized in 1963. [ 2 ] By 1964 it entered US service as part of the M15A2 Chemical Agent Detector Kit, with about 67,000 of these kits being produced from 1965-1969, with most other NATO nations also purchasing the M8.
A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens.
The "fruit machine" was a battery of psychological tests developed in Canada by Dr. Frank Robert Wake, [1] a psychology professor with Carleton University [2] in the 1960s.It was hoped that Dr. Wake's research program would be able to help the Government of Canada identify gay men working in the Public Service or to prevent gay people from obtaining government jobs.
The photoionization detector is an efficient and inexpensive detector for many gas and vapor analytes. PIDs produce instantaneous readings, operate continuously, and are commonly used as detectors for gas chromatography or as hand-held portable instruments. Hand-held, battery-operated versions are widely used in military, industrial, and ...
Automatic test equipment diagnostics is the part of an ATE test that determines the faulty components. ATE tests perform two basic functions. The first is to test whether or not the Device Under Test is working correctly. The second is when the DUT is not working correctly, to diagnose the reason.
A magnetic anomaly detector (MAD) is an instrument used to detect minute variations in the Earth's magnetic field. [1] The term typically refers to magnetometers used by military forces to detect submarines (a mass of ferromagnetic material creates a detectable disturbance in the magnetic field ).
The Foster–Seeley discriminator is a widely used FM detector. The detector consists of a special center-tapped transformer feeding two diodes in a full wave DC rectifier circuit. [2] [3] When the input transformer is tuned to the signal frequency, the output of the discriminator is zero. When there is no deviation of the carrier, both halves ...