METHOD FOR PRESSURE MEASUREMENT AT CHANGING TEMPERATURES AND PRESSURE TRANSDUCER FOR PRESSURE MEASUREMENT AT CHANGING TEMPERATURES

METHOD FOR PRESSURE MEASUREMENT AT CHANGING TEMPERATURES AND PRESSURE TRANSDUCER FOR PRESSURE MEASUREMENT AT CHANGING TEMPERATURES

A method for the compensating temperature gradient influences on a pressure measuring transducer, comprising the steps of: registering a pressure signal Sp(t); registering a temperature signal T(t); ascertaining a pressure measured value ps(Sp(t), T(t)); determining the time derivative of the temper...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: UEHLIN, THOMAS, LIEDTKE, MANUEL, WOSNITZA, ELMAR, GETMAN, IGOR
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
MEASURING
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:A method for the compensating temperature gradient influences on a pressure measuring transducer, comprising the steps of: registering a pressure signal Sp(t); registering a temperature signal T(t); ascertaining a pressure measured value ps(Sp(t), T(t)); determining the time derivative of the temperature signal dT/dt; correcting the pressure measured value with a correction function, which depends on the time derivative, wherein, as a function of the sign of the time derivative, another correction function is selected, or other coefficients in a function of equal type are selected.