Methods, apparatuses, systems, and computer program products for multi-point shunt calibration

Patent metadata

Field	Value
Publication number	US-11573284-B2
Application number	US-202217646953-A
Country	US
Kind code	B2
Filing date	Jan 4, 2022
Priority date	Apr 25, 2019
Publication date	Feb 7, 2023
Grant date	Feb 7, 2023

Abstract

Embodiments of the present disclosure include methods, apparatuses, systems, and computer program product for enabling multi-point shunt calibration of a sensor device. Multi-point shunt calibration provides at least a first, second, and third simulated calibration output, each simulated calibration output corresponding to an actual reading value and an expected reading value. The simulated calibration outputs are associated with a predefined output sequence, where each simulated calibration output is separated from an adjacent simulated calibration output by an output step size. Some embodiments are configured for automatically outputting each simulated calibration output for a particular period of time before outputting an adjacent simulated calibration output in the predefined output sequence. The various simulated calibration outputs, actual reading values, and/or expected values may be used in determining calibrated reading values for the sensor device.

First claim

What is claimed is:

1. A multi-point shunt calibration sensor device comprising:
a measuring bridge component;
a shunt calibration component configured to:
determine a first actual reading value associated with a first simulated calibration output;
determine a second actual reading value associated with a second simulated calibration output;
determine a third actual reading value associated with a third simulated calibration output; and
determine a calibrated reading value associated with the measuring bridge component based on the first actual reading value, second actual reading value, and third actual reading value,
wherein the first, second, and third simulated calibration outputs are associated with different expected reading values within an operating range associated with the multi-point shunt calibration sensor device.

2. The multi-point shunt calibration sensor device of claim 1 , wherein the first, second, and third simulated calibration outputs may be associated with an automatic output shift time interval.

3. The multi-point shunt calibration sensor device of claim 1 , wherein the shunt calibration component is further configured to:
determine at least one additional actual reading value associated with at least one additional simulated calibration output, wherein the calibrated reading value is based on the at least one additional actual reading value.

4. The multi-point shunt calibration sensor device of claim 1 , wherein the first actual reading value is associated with a first expected reading value, the second actual reading value is associated with a second expected reading value, and the third actual reading value is associated with a third expected reading value.

5. The multi-point shunt calibration sensor device of claim 4 , wherein the calibrated reading value is based on a first error value that depends upon the first actual reading value and the first expected reading value, a second error value based on the second actual reading value and the second expected reading value, and a third error value based on the third actual reading value and the third expected reading value.

6. The multi-point shunt calibration sensor device of claim 1 , wherein the shunt calibration component is configured to:
set one or more calibrated sensor parameter values for one or more adjustable sensor parameters associated with the multi-point shunt calibration sensor device; and
store the one or more calibrated sensor parameter values in a database when the multi-point shunt calibration sensor device is in a calibration mode.

7. A sensor device comprising:
at least a measuring bridge component and a shunt calibration component, wherein the shunt calibration component is configured to:
determine a first actual reading value associated with a first simulated calibration output;
determine a second actual reading value associated with a second simulated calibration output;
determine a third actual reading value associated with a third simulated calibration output; and
determine a calibrated reading value associated with the measuring bridge component based on the first actual reading value, second actual reading value, and third actual reading value,
wherein the first, second, and third simulated calibration outputs are associated with different expected reading values within an operating range associated with the sensor device.

8. The sensor device of claim 7 , wherein the first actual reading value represents a sensor output at 0%, the second actual reading value represents the sensor output at 50%, and the third actual reading value represents the sensor output at 100%.

9. The sensor device of claim 7 , wherein the shunt calibration component is configured to set one or more calibrated sensor parameter values for one or more adjustable sensor parameters associated with the sensor device.

10. The sensor device of claim 9 , wherein the shunt calibration component is configured to store the one or more calibrated sensor parameter values in a database when the sensor device is in a calibration mode.

11. The sensor device of claim 10 , wherein when the sensor device is in a measuring mode, the shunt calibration component is configured to access the one or more calibrated sensor parameter values to produce calibrated reading values for the sensor device.

12. The sensor device of claim 11 , wherein the one or more calibrated sensor parameter values are based on one or more of actual reading values and/or expected reading values at different points in a predefined output sequence.

13. The sensor device of claim 11 , wherein the one or more calibrated sensor parameter values for a hysteresis parameter is displayed to an operator via a display associated with the sensor device.

14. The sensor device of claim 7 , wherein the shunt calibration component is configured determine at least one additional actual reading value associated with at least one additional simulated calibration output, where the calibrated reading value is further based on the at least one additional actual reading value.

15. A multi-point shunt calibration method comprising:
determining a first actual reading value associated with a first simulated calibration output;
determining a second actual reading value associated with a second simulated calibration output;
determining a third actual reading value associated with a third simulated calibration output; and
determining a calibrated reading value associated with a measuring bridge component based on the first actual reading value, second actual reading value, and third actual reading value,
wherein the first, second, and third simulated calibration outputs are associated with different expected reading values within an operating range associated with a multi-point shunt calibration sensor device.

16. The multi-point shunt calibration method of claim 15 , wherein the first, second, and third simulated calibration outputs may be associated with an automatic output shift time interval.

17. The multi-point shunt calibration method of claim 15 , further comprising:
determining at least one additional actual reading value associated with at least one additional simulated calibration output, wherein the calibrated reading value is based on the at least one additional actual reading value.

18. The multi-point shunt calibration method of claim 15 , wherein the first actual reading value is associated with a first expected reading value, the second actual reading value is associated with a second expected reading value, and the third actual reading value is associated with a third expected reading value.

19. The multi-point shunt calibration method of claim 15 , further comprising:
setting one or more calibrated sensor parameter values for one or more adjustable sensor parameters associated with the multi-point shunt calibration sensor device.

20. The multi-point shunt calibration method of claim 19 , further comprising:
storing the one or more calibrated sensor parameter values in a database when the multi-point shunt calibration sensor device is in a calibration mode.

Assignees

• Honeywell Int Inc

Inventors

• Malhan Vishal
• Shenoy Raghavendra
• Richards Brian

Classifications

• G01D18/002

  Automatic recalibration (G01D18/008 takes precedence) · CPC title

• G01D18/008

  with calibration coefficients stored in memory · CPC title

• G08C23/04 Primary

  using light waves, e.g. infrared · CPC title

• G08C25/00

  Arrangements for preventing or correcting errors; Monitoring arrangements · CPC title

• G01D2218/10

  Testing of sensors or measuring arrangements · CPC title