Systems and methods for recalibrating a measurement instrument
AssigneeWest Energy Support & Technology, Inc.
InventorJames Glover
Life of this patent
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Abstract
Systems and methods are provided for recalibrating a measurement instrument that includes a transducer coupled to a signal conditioning module. During an initial calibration of the measurement instrument, a transducer signal is recorded and stored to a non-transitory storage medium. During recalibration, the transducer is electrically disconnected from the signal conditioning module, and the recorded transducer signal is retrieved from the non-transitory storage medium and injected into the signal conditioning module to generate a measurement output. The measurement output may then be compared with a calibrated measurement to determine if the measurement instrument is out of calibration.
Claims20
A method for recalibrating a measurement instrument that includes a transducer coupled to a signal conditioning module, comprising:
- electrically disconnecting the transducer from the signal conditioning module;
- retrieving a recorded transducer signal from a non-transitory storage medium, wherein the recorded transducer signal is stored to the non-transitory storage medium during an initial calibration of the measurement instrument;
- injecting the recorded transducer signal into the signal conditioning module to generate a measurement output;
- and
- comparing the measurement output with a calibrated measurement to determine if the measurement instrument is out of calibration.
A device for recalibrating a measurement instrument that includes a transducer coupled to an input port of a signal conditioning module, comprising:
- a processor configured to retrieve a recorded transducer signal from a non-transitory storage medium, wherein the recorded transducer signal is stored to the non-transitory storage medium during an initial calibration of the measurement instrument;
- and
- an output port configured to be coupled to the input port of the signal conditioning module in place of the transducer,
- the processor being further configured to cause the recorded transducer signal to be injected from the output port into the signal conditioning module, whereby the recorded transducer signal causes the signal conditioning module to generate a measurement output for use in recalibrating the measurement instrument with reference to a calibrated measurement.
A measurement instrument, comprising:
- a transducer configured to generate a transducer signal in response to one or more physical parameters;
- a signal conditioning module configured to convert the transducer signal into a format for display;
- and
- a recalibration device coupled between the transducer and the signal conditioning module, the recalibration device configured to
- electrically disconnect the transducer from the signal conditioning module,
- retrieve a recorded transducer signal from a non-transitory storage medium, wherein the recorded transducer signal is stored to the non-transitory storage medium during an initial calibration of the measurement instrument, and
- inject the recorded transducer signal into the signal conditioning module in place of the transducer signal to generate a measurement output.
Dependencies are inferred from the claim text.