Back to results
US 2022/0291267 A1Published application
Active measurement correction of resistive sensors
AssigneeRenesas Electronics America Inc.
InventorDavid Mitchell GRICE
Life of this patent
Estimating the term…
Abstract
In an embodiment, an apparatus is disclosed that includes a plurality of resistors arranged as a reverse bridge and configured to convert an input voltage to a scaled output voltage. The scaled output voltage is scaled to a target format based at least in part on a range of the input voltage and a fixed value of the plurality of resistors. The input voltage is generated based at least in part on at least one signal generated by a sensor based at least in part on a measurement of a property of a measurement target.
Claims20
An apparatus comprising:
- a plurality of resistors arranged as a reverse bridge and being configured to convert an input voltage to a scaled output voltage, the scaled output voltage being scaled to a target format based at least in part on a range of the input voltage and a fixed value of the plurality of resistors, the input voltage being generated based at least in part on at least one signal generated by a sensor based at least in part on a measurement of a property of a measurement target.
A system comprising:
- a sensor signal conditioning integrated circuit, the sensor signal conditioning integrated circuit being configured to:
- receive at least a first sensor signal and a second sensor signal from a sensor, the first and second sensor signals being generated by the sensor based at least in part on a measurement of a property of a measurement target;
- and
- generate an input voltage based at least in part on a differential voltage between the first and second sensor signals, the input voltage having a range that is proportional to a measurement range the property of the measurement target that is being measured by the sensor;
- and
- a plurality of resistors arranged as a reverse bridge, the reverse bridge being configured to convert the input voltage to a scaled output voltage, the scaled output voltage being scaled to a target format based at least in part on the range of the input voltage and a fixed value of the plurality of resistors.
3 more elements
A system comprising:
- a sensor signal conditioning integrated circuit, the sensor signal conditioning integrated circuit being configured to:
- receive at least a first sensor signal and a second sensor signal from a sensor, the first and second sensor signals being generated by the sensor based at least in part on a measurement of a fluid pressure corresponding to a pressure monitor of a patient;
- and
- generate an input voltage based at least in part on a differential voltage between the first and second sensor signals, the input voltage having a range that is proportional to a measurement range the fluid pressure that is being measured by the sensor;
- and
- a plurality of resistors arranged as a reverse bridge, the reverse bridge being configured to:
- convert the input voltage to a scaled output voltage, the scaled output voltage being scaled to a target format based at least in part on the range of the input voltage and a fixed value of the plurality of resistors;
- and
- provide the scaled output voltage to a presentation device.
6 more elements
Dependencies are inferred from the claim text.