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Title: Method and apparatus for calibrating a linear variable differential transformer

Abstract

A calibration apparatus for calibrating a linear variable differential transformer (LVDT) having an armature positioned in au LVDT armature orifice, and the armature able to move along an axis of movement. The calibration apparatus includes a heating mechanism with an internal chamber, a temperature measuring mechanism for measuring the temperature of the LVDT, a fixture mechanism with an internal chamber for at least partially accepting the LVDT and for securing the LVDT within the heating mechanism internal chamber, a moving mechanism for moving the armature, a position measurement mechanism for measuring the position of the armature, and an output voltage measurement mechanism. A method for calibrating an LVDT, including the steps of: powering the LVDT; heating the LVDT to a desired temperature; measuring the position of the armature with respect to the armature orifice; and measuring the output voltage of the LVDT.

Inventors:
 [1]
  1. North Huntingdon, PA
Issue Date:
Research Org.:
BECHTEL BETTIS, INC.
Sponsoring Org.:
USDOE
OSTI Identifier:
941092
Patent Number(s):
6844720
Application Number:
10/216,465
Assignee:
The United States of America as represented by the United States Department of Energy (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01D - MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE
DOE Contract Number:  
AC11-98PN38206
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Pokrywka, Robert J. Method and apparatus for calibrating a linear variable differential transformer. United States: N. p., 2005. Web.
Pokrywka, Robert J. Method and apparatus for calibrating a linear variable differential transformer. United States.
Pokrywka, Robert J. Tue . "Method and apparatus for calibrating a linear variable differential transformer". United States. https://www.osti.gov/servlets/purl/941092.
@article{osti_941092,
title = {Method and apparatus for calibrating a linear variable differential transformer},
author = {Pokrywka, Robert J},
abstractNote = {A calibration apparatus for calibrating a linear variable differential transformer (LVDT) having an armature positioned in au LVDT armature orifice, and the armature able to move along an axis of movement. The calibration apparatus includes a heating mechanism with an internal chamber, a temperature measuring mechanism for measuring the temperature of the LVDT, a fixture mechanism with an internal chamber for at least partially accepting the LVDT and for securing the LVDT within the heating mechanism internal chamber, a moving mechanism for moving the armature, a position measurement mechanism for measuring the position of the armature, and an output voltage measurement mechanism. A method for calibrating an LVDT, including the steps of: powering the LVDT; heating the LVDT to a desired temperature; measuring the position of the armature with respect to the armature orifice; and measuring the output voltage of the LVDT.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {1}
}

Patent:

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