Temperature-to-frequency conversion apparatus

Details Temperature-to-frequency conversion apparatus Temperature-to-frequency conversion apparatus

1980-02-14

1981-10-27

Woodiel, Donald O.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

331 66, G01K 716

Patent

active

042966329

ABSTRACT:
A temperature-to-frequency converter circuit of the type utilizing a pair of threshold switches connected across a timing capacitor for controlling a circuit output voltage to higher and lower magnitudes when the capacitor voltage respectively reaches higher and lower levels, has a linear conductance--vs.--temperature network between the output and the timing capacitance. The circuit operates as an astable multivibrator having an output frequency linearly related to temperature. The output waveform is an essential symmetrical squarewave, facilitating use with low-cost counting and display circuitry and providing a reduced level of electromagnetic interference.

REFERENCES:
patent: 3872728 (1975-03-01), Joyce et al.
patent: 3906391 (1975-09-01), Murdock
patent: 3911374 (1975-10-01), Busse et al.
patent: 4206648 (1980-06-01), Tuska et al.

Affiliated with

Also associated with

Rating

Temperature-to-frequency conversion apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature-to-frequency conversion apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature-to-frequency conversion apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-274264