Signals and indicators – Alarms – Reeled material end
Patent
1976-10-28
1978-09-19
Goldstein, Herbert
Signals and indicators
Alarms
Reeled material end
73 28, G08B 2100
Patent
active
041145577
ABSTRACT:
A particle monitoring apparatus having a particle sensing unit which receives mechanical signals caused by impaction of particles on a sensor and transforms the mechanical signals to an electrical signal related to the amount of particles moving with a fluid, as air. The output signal is used to produce readable information related to the movement of particles in the fluid.
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