Patent ID: 8375790

Claim:
A physical quantity detection apparatus that detects a given physical quantity, the physical quantity detection apparatus comprising: a physical quantity detection element that includes a drive electrode and a detection electrode, and vibrates based on a drive signal supplied to the drive electrode so that a physical quantity detection signal that corresponds to thea magnitude of the physical quantity and a leakage signal of vibrations based on the drive signal flow through the detection electrode; a driver section that generates the drive signal; a synchronous detection section that performs a synchronous detection process on a detection target signal that includes the physical quantity detection signal and the leakage signal based on a detection signal that is synchronized with the drive signal; and a timing change section that changes a relative timing of at least one of a rising edge and a falling edge of the detection signal with respect to the detection target signal based on a control signal so that at least part of the leakage signal is output by the synchronous detection process.