Physical quantity sensor, sensor unit, electronic apparatus, moving object, and physical quantity detection method

• Main Authors: Murashima, Noriyuki, Yonezawa, Takemi
• Format: Patent
• Language: English
• Published: 04.09.2018
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING

A physical quantity sensor includes a physical quantity sensor element and an IC connected to the physical quantity sensor element. The IC includes an analog power supply circuit that is switched to enable or disable, a signal processing unit to which a voltage is supplied from the analog power supply circuit and which processes a signal from the physical quantity sensor element, and a control circuit that sets the analog power supply circuit to enable within a processing period based on an external trigger and makes the signal processing unit process a physical quantity signal from the physical quantity sensor element intermittently for every processing period.