Process variable transmitter with acceleration sensor
First Claim
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1. A process variable transmitter for use in an industrial process control or monitoring system, comprising:
- a process variable sensor in the process variable transmitter having a process variable sensor output related to a process variable;
an accelerometer in the process variable transmitter and which is separate from the process variable sensor coupled to the transmitter having an accelerometer output related to acceleration;
output circuitry configured to provide an output related to the sensed process variable; and
diagnostic circuitry configured to;
determine a ratio between the process variable output and the accelerometer output;
diagnose a condition in the process based upon the ratio of the process variable sensor output and the accelerometer output and responsively provide a diagnostic output indicative of a diagnostic condition in the process.
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Abstract
A process variable transmitter for use in an industrial process control or monitoring system includes a transmitter housing and a process variable sensor having a sensor output related to a process variable. An accelerometer is coupled to the transmitter and provides an accelerometer output related to acceleration. Diagnostic circuitry provides a diagnostic output as a function of the sensor output and the accelerometer output.
548 Citations
41 Claims
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1. A process variable transmitter for use in an industrial process control or monitoring system, comprising:
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a process variable sensor in the process variable transmitter having a process variable sensor output related to a process variable; an accelerometer in the process variable transmitter and which is separate from the process variable sensor coupled to the transmitter having an accelerometer output related to acceleration; output circuitry configured to provide an output related to the sensed process variable; and diagnostic circuitry configured to; determine a ratio between the process variable output and the accelerometer output; diagnose a condition in the process based upon the ratio of the process variable sensor output and the accelerometer output and responsively provide a diagnostic output indicative of a diagnostic condition in the process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of diagnosing a condition in an industrial process using a process variable transmitter in an industrial process control system, comprising:
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sensing accelerations applied to the transmitter using an accelerometer located in the transmitter and providing an accelerometer output; measuring a process variable with a process variable sensor separate from the accelerometer and located in the transmitter and providing a process variable sensor output; providing an output related to the sensed pressure variable; determining a ratio of the process variable sensor output and the accelerometer output; diagnosing a condition of the industrial process based upon the ratio of the process variable sensor output and the accelerometer output. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification