发明名称 |
ANALOG PROCESS VARIABLE TRANSMITTER WITH ELECTRONIC CALIBRATION |
摘要 |
A process variable transmitter for measuring a process variable includes a process variable sensor configured to sense a process variable and provide a sensor output. Measurement circuitry receives the sensor output and provides a measured output related to the process variable. Output circuitry provides a device output on a two-wire process control loop based upon the measured output. The output circuitry has a transfer function that is a function of an adjustable analog circuit component. A motorized actuator is configured to adjust the adjustable analog circuit component to thereby change the transfer function of the output circuitry. An optional calibration controller is also provided. |
申请公布号 |
US2015177356(A1) |
申请公布日期 |
2015.06.25 |
申请号 |
US201314138684 |
申请日期 |
2013.12.23 |
申请人 |
Rosemount Inc. |
发明人 |
Wiater Nathan Len |
分类号 |
G01R35/00;G01R1/20 |
主分类号 |
G01R35/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. A process variable transmitter for measuring a process variable, comprising:
a process variable sensor configured to sense a process variable and provide a sensor output; measurement circuitry configured to receive the sensor output and provide a measured output related to the process variable; output circuitry configured to provide a device output on a two-wire process control loop based upon the measured output, the output circuitry having a transfer function that is a function of an adjustable analog circuit component; and a motorized actuator configured to adjust the adjustable analog circuit component to thereby change the transfer function of the output circuitry. |
地址 |
Chanhassen MN US |