Method and apparatus for calibration of sensors

Details Method and apparatus for calibration of sensors Method and apparatus for calibration of sensors

1982-08-30

1984-11-13

Kreitman, Stephen A.

Measuring and testing

Instrument proving or calibrating

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

204406, G01L 2700, G01N 2726

Patent

active

044818041

ABSTRACT:
Calibration of sensors of the type used for the cutaneous determination of blood oxygen and carbon dioxide levels is facilitated by providing separate sensor units, alternatively and removably connectable to a calibration device and to the measuring devices with which they are used for such determinations. The sensor units contain, in addition to a sensor electrode, a data memory in which is stored calibration data generated when the sensor unit is connected to the calibration device. The calibration device can provide a plurality of calibration stations, each capable of supplying a standard gas to a connected sensor and, in response to signals from the sensor exposed to the standard gas, generating data signals representing the calibration of the sensor, which signals are transmitted to the data memory of the sensor unit. Upon connection of the sensor unit to the measuring device, the calibration data from the data memory of the sensor unit are used as a calibration base for measurements by the sensor.

REFERENCES:
patent: 3518982 (1970-07-01), Timmins et al.
patent: 3981297 (1976-09-01), Dunn et al.
patent: 4039933 (1977-08-01), Moran
patent: 4218746 (1980-08-01), Koshiishi
patent: 4269684 (1981-05-01), Zick
patent: 4321113 (1982-03-01), Grambow et al.
patent: 4446715 (1984-05-01), Bailey

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