Measuring and testing – Volume or rate of flow – By measuring vibrations or acoustic energy
Patent
1993-07-29
1994-07-05
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
By measuring vibrations or acoustic energy
73217, 73223, G01F 326
Patent
active
053257251
ABSTRACT:
A device for monitoring the leakage of cooling gas into the stator water cooling system is disclosed. The vent from the water cooling reservoir tank is connected to the inlet of a U-shaped passageway and the outlet of the passageway is connected to an atmospheric vent. A liquid is provided in the passageway so as to prevent the passage of cooling gas from the inlet to the outlet without a desired pressure differential. At the specified pressure differential however, gas bubbles from one side of the passageway to the other and is trapped by a measuring cup in one position. When a sufficient quantity of gas is passed under the cup, the buoyancy of the cup becomes positive allowing it to rise to a second position where at least a portion of the gas is discharged. Because the amount of gas discharged can be determined and a number of cycles of operation of the cup can be measured, the flowrate can be precisely measured. Appropriate electronic circuitry processes the electronic indications of cup operation to provide an electronic flowrate indication, an alarm indication should the flowrate exceed a predetermined amount and conditioning for computer storage and processing of flowrate information in preferred embodiments.
REFERENCES:
patent: 4064750 (1977-12-01), Speece
Albright Donald R.
Sanderson Harold C.
General Electric Company
Goldstein Herbert
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