Measuring and testing – Gas content of a liquid or a solid – By vibration
Patent
1979-06-05
1981-02-17
Woodiel, Donald O.
Measuring and testing
Gas content of a liquid or a solid
By vibration
73 613, 178635, G01N 2502
Patent
active
042507383
ABSTRACT:
A dish transducer unit comprising a dish-defining structure into which a drop of sample fluid is dropped for contact with the electrical or electrochemical transducer of the transducer, both the dish-defining structure and the transducer unit being thermostatically heated. The technician presses a button to initiate a timer, whereupon a transducer warm-up period begins, during which the meter connected to the transducer is maintained inoperative, to preclude readings. When the transducer warm-up period ends, the meter becomes operative so that the technician can calibrate. Prior to completion of a timed calibration period, the technician must drop the sample into the dish-defining structure, or else the timer stops and the thermostatic heating is discontinued. If the sample is timely dropped, a sample warm-up period follows, during which the sample is heated and the meter again inoperative, followed by a reading-taking interval during which the meter is again operative. Upon conclusion of the reading-taking interval the timer stops, switching off the thermostatic heating action, and can be restarted only if the technician again presses the start button.
REFERENCES:
patent: 3074270 (1963-01-01), Rabb
patent: 3929605 (1975-12-01), Lubbers
patent: 3998212 (1976-12-01), Reichenberger
patent: 4165633 (1979-08-01), Raisanen
Striker Michael J.
Woodiel Donald O.
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