Electrical resistors – Resistance value responsive to a condition – Fluid- or gas pressure-actuated
Patent
1983-12-19
1985-08-13
Envall, Jr., Roy N.
Electrical resistors
Resistance value responsive to a condition
Fluid- or gas pressure-actuated
338308, 338 4, 252500, H01C 1010, G01L 118
Patent
active
045353174
ABSTRACT:
The present invention relates to a piezoresistive gauge. This gauge comprises a support, on which are formed two pairs of electrical contacts, partly covered with a piezoresistive element, made from an electricity-conducting organic compound, chosen from among the salts of tetramethyl-tetrathiofulvalene, quaternary ammonium salts of tetracyanoquinodimethane and diethyl-dimethyl-tetrathiofulvalene-tetracyanoquinodimethane (DEDMTTF-TCNQ).
This gauge can be used for measuring pressures of approximately 500 bars to a few kbars.
REFERENCES:
patent: 4026905 (1977-05-01), Cohen et al.
patent: 4349606 (1982-09-01), Kishimoto et al.
Bechgaard et al., "A New Organic Low Temperature Conductor: HMTSF-TNAP", Solid State Communications, vol. 25, No. 11, pp. 875-879, Mar. 1978.
Hermann, A. M., "Electrical Conductivity of Elastomeric TCNQ Complexes", Electrical Properties of Polymers, Technomics, pp. 120-138.
Ishiguro et al., "Elastic Properties of TTF-TCNQ", Journal Physical Society of Japan, vol. 42, No. 1, Jan. 1977. _
Keryer et al., "The Most One-Dimensional CTC Belonging to the TTF-TCQN Series", Physics Stat: Solids (b), vol. 100, 1980, pp. 251-259.
Oct. 1978-Solid State Communications, vol. 28, No. 1, pp. 113-117, entitled "Elastoresistivity of TTF-TCNQ and Related Compounds", by S. Bouffard et al.
Canet Roland
Delhaes Pierre
Dupart Eliane
Manceau Jean-Pierre
Pacault Adolphe
Commissariat a l''Energie Atomique
Envall Jr. Roy N.
Sears C. N.
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