Rotating source verification device

Details Rotating source verification device Rotating source verification device

1990-07-05

1992-01-21

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340384R, 340671, 340672, G08B 1900, G08B 2100

Patent

active

050831097

ABSTRACT:
A device for monitoring and verifying the operation of a rotating source, such as a rotating civil defense-type siren being tested by sounding the siren for a short period of time, employs a sensor mounted near the siren. The signal from the sensor is amplified, filtered and converted to a sinusoidal signal of the same frequency as the rotation of the siren. The sinusoidal signal is processed to sense siren turn-on, to determine whether the siren rotates more than a predetermined minimum number of times, and to sense siren turn-off. This information is stored and displayed by the device until it can be inspected by an individual, and can be relayed to a remote site.

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