Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1975-01-23
1978-03-28
Sloyan, Thomas J.
Communications: electrical
Audible indication
Percussion-type sound producer
177DIG3, 177210R, 307152, H03K 1302, G01G 315
Patent
active
040818012
ABSTRACT:
The electronic measuring system includes a novel power supply which may receive power from a D.C. or A.C. source but which is particularly adapted to convert D.C. battery power to higher voltage pulses to drive a transducer. During intervals between transducer power pulses, an automatic drift compensation system stores an indication of system drift for use during a subsequent power pulse period. The system includes stability sensing means which render the system inoperative for measurement purposes when the signal from the measuring transducer is unstable. To compensate for a loss of time, the system automatically operates for a short period at a rapid rate subsequent to a period of input signal unstability.
A novel indicator system and indicator control unit is employed wherein up-down counters are controlled in the indicator for rounding purposes. This system is adaptd to round an output indication by ones, twos, or fives, and where fives rounding is accomplished, the system automatically senses whether the rounding is to be up or down to the nearest five indication. Additionally, measurement indication pulses are fed through a divider counter network prior to the indicator to increase the resolution of the measurement displayed by the indicator.
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Keen Harry J.
Thomas Haydon C.
Colt Industries Operating Corp
Sloyan Thomas J.
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