Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1986-08-01
1987-06-16
Noland, Tom
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
324202, G01V 1300
Patent
active
046728376
ABSTRACT:
Sensitivity of a walk-through metal detector is checked by providing a standard metal object simulating the mass, size and metal content of a weapon or other contraband, suspending the object in successive positions simulating where the contraband might be concealed on a person walking through the detector, and swinging the suspended object through each of said positions while operating the detector and observing its response.
REFERENCES:
patent: 4110679 (1978-08-01), Payne
patent: 4514692 (1985-04-01), Johnson et al.
Glenn John F. C.
Noland Tom
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