System and method for using magneto-resistive sensors as dual purpose sensors
AssigneeHoneywell International Inc.
InventorsHong Wan, Lakshman S. Withanawasam
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Abstract
An integrated dual-purpose sensor is shown. The dual-purpose sensor in one embodiment of the present invention includes a full Wheatstone bridge or a half Wheatstone bridge providing two output measurements. Specifically, the Wheatstone bridge provides two output measurements that are utilized to determine a temperature sensor reading and a magnetic sensor reading.
Claims38
A sensing device comprising at least a first output and a second output, wherein the first output and the second output are adaptable to provide a magnetic sensor reading and a temperature sensor reading.
An integrated dual purpose sensing device, comprising:
- at least a first magnetoresistive element and a second magnetoresistive element, each magnetoresistive element having a first sensing terminal and a second sensing terminal, wherein the second sensing terminal associated with the first magnetoresistive element is connected to a first sensing terminal associated with the second magnetoresistive element, the sensing device being adaptable to provide at least two output measurements, wherein the at least two output measurements are adaptable to provide two sensing parameters.
An integrated dual purpose sensing device, comprising:
- a first magnetoresistive element, a second magnetoresistive element, a third magnetoresistive element, and a fourth magnetoresistive element, each magnetoresistive element having a first sensing terminal and a second sensing terminal, wherein the second sensing terminal associated with the first magnetoresistive element is connected to the first sensing terminal associated with the second magnetoresistive element, wherein the second sensing terminal associated with the second magnetoresistive element is connected to the first sensing terminal associated with the third magnetoresistive element, wherein the second sensing terminal associated with the third magnetoresistive element is connected to the first sensing terminal associated with the fourth magnetorestive element, and the second terminal associated with the fourth magnetoresistive element is connected to the first sensing terminal associated with the first magnetoresistive element, and wherein the sensing device is adaptable to provide at least two outputs, the at least two outputs being employed to determine two parameters.
Dependencies are inferred from the claim text.