COOLING FOR INDUSTRIAL PROCESS VARIABLE TRANSMITTERS
First Claim
1. A pressure transmitter assembly for measuring a process pressure of an industrial process, comprising:
- a pressure sensor configured to sense the process pressure;
a process coupling configured to couple the pressure sensor to the industrial process; and
a phase change material carried in the process coupling configured to reduce heat transfer from the industrial process to the process variable sensor by changing phase in response to heat from the industrial process.
1 Assignment
0 Petitions
Accused Products
Abstract
A pressure transmitter assembly for measuring a process pressure of an industrial process includes a pressure sensor configured to sense the process pressure. A process coupling couples the pressure sensor to the industrial process. In one example configuration, a phase change material carried in the process coupling is configured to reduce heat transfer from the industrial process to the process variable sensor by changing phase in response to heat from the industrial process. In another example configuration, a thermocouple electric cooling element is coupled to the process coupling and configured to conduct heat away from the coupling in response to an applied electric current.
11 Citations
30 Claims
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1. A pressure transmitter assembly for measuring a process pressure of an industrial process, comprising:
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a pressure sensor configured to sense the process pressure; a process coupling configured to couple the pressure sensor to the industrial process; and a phase change material carried in the process coupling configured to reduce heat transfer from the industrial process to the process variable sensor by changing phase in response to heat from the industrial process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A pressure transmitter assembly for measuring a process pressure of an industrial process, comprising:
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a pressure sensor configured to sense the process pressure; a process coupling configured to couple the pressure sensor to the industrial process; and a thermocouple electric cooling element coupled to the process coupling configured to conduct heat away from the coupling in response to an applied electric signal. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A process coupling for coupling a process variable transmitter to a process fluid of an industrial process comprising:
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an elongate housing having a flange configured to couple the process fluid and an opposed transmitter coupling configured to couple to the process variable transmitter; a capillary in the elongate housing which conveys a process pressure at the flange to the transmitter coupling; a tube carried by the elongate housing which extends in a direction between the flange and the process variable transmitter coupling; and a phase change material carried in the tube configured to reduce heat transfer from the industrial process to the process variable transmitter. - View Dependent Claims (28)
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29. A process coupling for coupling a process variable transmitter to a process fluid of an industrial process comprising:
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an elongate housing having a flange configured to couple the process fluid and an opposed transmitter coupling configured to couple to the process variable transmitter; a capillary in the elongate housing which conveys a process pressure at the flange to the transmitter coupling; a thermoelectric cooling element configured to conduct heat away from the process coupling in response to an applied electric signal. - View Dependent Claims (30)
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Specification