Communications: electrical – Digital comparator systems
Patent
1977-06-27
1979-03-27
Yusko, Donald J.
Communications: electrical
Digital comparator systems
73 4R, 73720, 73781, 310338, G01L 908, G01L 1500, H01L 4110
Patent
active
041468759
ABSTRACT:
A pressure sensing device comprising a ring surrounding or adapted to surround a body subjected to internal pressure; means to connect the ring physically to the body at spaced locations, the connecting means transmitting to the ring dilation and contraction movements of the body due to variation of pressure therein; said movement transmitted by the connecting means causing a portion of the ring between adjacent spaced locations to flex elastically in the manner of a bending beam, and an electrical transducer mounted upon said flexing portion of the ring, to produce electrical signals dependent on the pressure variation. One form of the device is adapted to clamp around an engine fuel line to sense fuel pressure. Another form of the device is adapted to measure engine cylinder pressure. In a further development of the invention these two forms of device are combined to feed information to engine analysing circuitry producing a visual display.
REFERENCES:
patent: 3942049 (1976-03-01), Hyanova et al.
patent: 4012940 (1977-03-01), Change et al.
Beatson Michael F. F.
Nunn Terence M.
Scotus Marine Limited
Yusko Donald J.
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