Sash sensor and method of sensing a sash using an array of multi

Details Sash sensor and method of sensing a sash using an array of multi Sash sensor and method of sensing a sash using an array of multi

1998-12-10

2000-10-24

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

3405451, 3405452, 3405453, 3405459, 340547, 3406861, G08B 2100

Patent

active

061374032

ABSTRACT:
A fume hood sash sensor uses multiplexed sensors to measure sash position. The sensor transmitter or receiver elements may be multiplexed. Furthermore, the sensor may employ passive, passive remote powered transponder, or powered transponder elements on the sashes to measure sash position.

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