DEVICE FOR BROADCASTING MESSAGES ON FLOOD OR MUD FLOW

signalling and calling arrangements. SUBSTANCE: device has radio transmitter, multivibrator, level transducers with sensitive members, relay, power supply sources, master oscillator, telegraph sending key, modulating code oscillator, phase manipulator, transmitting aerial, radio receiver, receiving...

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Bibliographic Details
Main Authors DIKAREV V.I, DENISOV G.A, ROGALEV V.A
Format Patent
LanguageEnglish
Published 20.05.2001
Edition7
Subjects
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Summary:signalling and calling arrangements. SUBSTANCE: device has radio transmitter, multivibrator, level transducers with sensitive members, relay, power supply sources, master oscillator, telegraph sending key, modulating code oscillator, phase manipulator, transmitting aerial, radio receiver, receiving aerial, search unit, mixer, conversion frequency source, finder unit, unit for measuring bandwidth, threshold unit, keys, delay line, acoustic signal unit, phase detector, recording unit, unit for measuring frequency, frequency detector, trigger, balance switcher. The device has feature for stabilizing reference voltage phase selected from the received signal. EFFECT: high accuracy in determining flood or mud flow occurrence place. 2 dwg
Bibliography:Application Number: RU19990127429