Apparatus for in-situ calibration of instruments that measure fluid depth
Abstract
The present invention provides a method and apparatus for in-situ calibration of distance measuring equipment. The method comprises obtaining a first distance measurement in a first location, then obtaining at least one other distance measurement in at least one other location of a precisely known distance from the first location, and calculating a calibration constant. The method is applied specifically to calculating a calibration constant for obtaining fluid level and embodied in an apparatus using a pressure transducer and a spacer of precisely known length. The calibration constant is used to calculate the depth of a fluid from subsequent single pressure measurements at any submerged position. 8 figures.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 5179731
- Patent Number(s):
- 5277054
- Application Number:
- PPN: US 7-813339
- Assignee:
- Battelle Memorial Inst., Richland, WA ()
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 23 Dec 1991
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; LEVEL INDICATORS; CALIBRATION; DISTANCE; PRESSURE MEASUREMENT; TRANSDUCERS; MEASURING INSTRUMENTS; 440800* - Miscellaneous Instrumentation- (1990-)
Citation Formats
Campbell, M D. Apparatus for in-situ calibration of instruments that measure fluid depth. United States: N. p., 1994.
Web.
Campbell, M D. Apparatus for in-situ calibration of instruments that measure fluid depth. United States.
Campbell, M D. Tue .
"Apparatus for in-situ calibration of instruments that measure fluid depth". United States.
@article{osti_5179731,
title = {Apparatus for in-situ calibration of instruments that measure fluid depth},
author = {Campbell, M D},
abstractNote = {The present invention provides a method and apparatus for in-situ calibration of distance measuring equipment. The method comprises obtaining a first distance measurement in a first location, then obtaining at least one other distance measurement in at least one other location of a precisely known distance from the first location, and calculating a calibration constant. The method is applied specifically to calculating a calibration constant for obtaining fluid level and embodied in an apparatus using a pressure transducer and a spacer of precisely known length. The calibration constant is used to calculate the depth of a fluid from subsequent single pressure measurements at any submerged position. 8 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}
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