Method for calibrating instruments for time interval measurement

Details Method for calibrating instruments for time interval measurement Method for calibrating instruments for time interval measurement

1985-07-19

1986-12-09

Myracle, Jerry W.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01P 2100

Patent

active

046272682

ABSTRACT:
A method and apparatus is presented for calibrating instruments for time interval measurements, pulse width measurements, and rise and fall time measurements. The preferred method comprises generating two coherent pulses using a linear passive device. The coherent pulses are simultaneously a.c. coupled to two channels of, for example, a time-interval measuring instrument. The time interval between the coherent pulses passing through the instrument is measured at identical voltages on each signal. Then the coherent pulses are exchanged between the channels and a further interval measurement is made. The results of each of the measurements are compared and used to calculate calibration constants to correct systematic errors present in the instrument.

REFERENCES:
patent: 3260101 (1966-07-01), Ongaro et al.

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