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Title: 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:
 [1]
  1. (Richland, WA)
Issue Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA
OSTI Identifier:
869116
Patent Number(s):
5277054
Assignee:
Battelle Memorial Institute (Richland, WA) PNNL
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}
}

Patent:

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