IMPROVEMENTS IN OR RELATING TO ELECTRICAL CONDITION-DETECTING APPARATUS, SUCH AS FOR USE IN FLAME-DETECTION
Patent
·
OSTI ID:4790698
A flame and/or smoke detecting apparatus using a Geiger-Mueller sensing device ls designed which may operate in the standby condition for a long time and which prevents false indication of fire in the event of power interruption. The Geiger-Mueller devlce is of the non-selfquenchlng type, and a quenching circuit isprovided with time delay means to maintain the Geiger-Mueller device insensitlve untll the circuit is fully operative such as after a power fallure. Fire is indicated when the device responds to u-v light either emitted by the flame or reflected from an aunxlllary source by the smoke. (D.L.C.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-16-011923
- OSTI ID:
- 4790698
- Report Number(s):
- GB 890854
- Country of Publication:
- United Kingdom
- Language:
- English
Similar Records
RADIOACTIVE SELECTOR CIRCUIT FOR CONTROLLING THE LEVEL OF MATERIAL BETWEEN A SOURCE AND SELECTOR
IMPROVED RADIATION DETECTOR
IMPROVEMENTS IN OR RELATING TO ELECTRONIC CONTROL CIRCUITRY FOR DELIVERING A CONTROL SIGNAL OUTPUT IN RESPONSE TO IONISING RADIATION
Patent
·
Mon Apr 20 23:00:00 EST 1964
·
OSTI ID:4016809
IMPROVED RADIATION DETECTOR
Patent
·
Tue Feb 21 23:00:00 EST 1961
·
OSTI ID:4059235
IMPROVEMENTS IN OR RELATING TO ELECTRONIC CONTROL CIRCUITRY FOR DELIVERING A CONTROL SIGNAL OUTPUT IN RESPONSE TO IONISING RADIATION
Patent
·
Sun Mar 31 23:00:00 EST 1963
·
OSTI ID:4717449