Extremely low power pressure sensing system using power strobed sensor

摘要

A sensing system has a sensor suitable for producing a signal relative to the sensing of a physical parameter, a power supply connected to the sensor, and a strobe interconnected to the sensor or to the power supply so as to pass power to the sensor so as to activate the sensor so as to cause the sensor to sense the physical parameter. The strobe intermitantly passes power at rapid rate to the sensor. A human interface device is cooperative with the sensor such that the sensor senses an operation of the human interface device. The sensor is a piezoresistive sensor. A processor is connected to the sensor so as to receive a signal from the sensor corresponding to the activation of the sensor by the strobe.

主权项

1. A sensor system comprising:
a sensor suitable for producing a signal relative to a sensing of a physical parameter; a power supply connected to said sensor; a strobing means interconnected to said sensor and said power supply, said strobing means for passing power to said sensor so as to activate said sensor so as to sense the physical parameter, said strobing means for intermitantly passing power to said sensor; a human interface device cooperative with said sensor such that said sensor senses an operation of said human interface device.