Quartz thermometer

Details Quartz thermometer Quartz thermometer

1981-08-24

1984-03-20

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

By a vibratory effect

310318, 310361, G01K 1122

Patent

active

044377738

ABSTRACT:
A quartz thermometer which emits a signal, the frequency of which is a substantially linear function of temperature. The thermometer comprises a quartz resonator provided with electrodes disposed on the margins of the upper and lower main surfaces, parallel to the length direction. The electrodes are supplied with electric current so as to cause the resonator to vibrate torsionally. The length of the resonator is substantially parallel to the X axis of the quartz crystal. An electronic circuit is responsive to the signal emitted by the resonator for producing an output representative of temperature.

REFERENCES:
patent: 2284753 (1942-06-01), Mason
patent: 3329004 (1967-07-01), King, Jr.
patent: 3350942 (1967-11-01), Peltola
patent: 3423609 (1969-01-01), Hammond
patent: 3792294 (1974-02-01), Royer
patent: 3792377 (1974-02-01), Fujita et al.
patent: 3826931 (1974-07-01), Hammond
patent: 3879992 (1975-04-01), Bartera
patent: 4039969 (1977-08-01), Martin
patent: 4140999 (1979-02-01), Conway
patent: 4178566 (1979-12-01), Kawashima
Publication: IDC Technical Report 54-248, "Handbook of Piezoelectric Crystals for Radio Equipment Designers", J. P. Buchanan, pp. 11-12, 18-22, (12/54).
Publ. "Digital Quartz Thermometer," Gniewinska et al., pp. 23-24, Polish Technical Review (Poland), No. 4-5, 1980.
Publ. "A Linear Quartz Crystal Temperature Sensing Element", D. L. Hammond et al., pp. 1-5, Instr. Society of America, Oct. 12, 1964.
Publ., "Piezoelectric Crystals and Their Application to Ultrasonics", W. P. Mason, PhD, pp. 83, 90-92, 100-102.

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