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.
- Inventors:
-
- Richland, WA
- Issue Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- OSTI Identifier:
- 869116
- Patent Number(s):
- 5277054
- Assignee:
- Battelle Memorial Institute (Richland, WA)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- apparatus; in-situ; calibration; instruments; measure; fluid; depth; provides; method; distance; measuring; equipment; comprises; obtaining; measurement; location; precisely; calculating; constant; applied; specifically; level; embodied; pressure; transducer; spacer; length; calculate; subsequent; single; measurements; submerged; position; pressure measurement; method comprises; pressure transducer; pressure measurements; method comprise; measuring equipment; situ calibration; in-situ calibration; fluid level; single pressure; measure fluid; distance measurement; /73/
Citation Formats
Campbell, Melvin D. Apparatus for in-situ calibration of instruments that measure fluid depth. United States: N. p., 1994.
Web.
Campbell, Melvin D. Apparatus for in-situ calibration of instruments that measure fluid depth. United States.
Campbell, Melvin D. Sat .
"Apparatus for in-situ calibration of instruments that measure fluid depth". United States. https://www.osti.gov/servlets/purl/869116.
@article{osti_869116,
title = {Apparatus for in-situ calibration of instruments that measure fluid depth},
author = {Campbell, Melvin 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}
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