Abstract: A detection device includes a frame, a transport mechanism, detection mechanisms, and a grasping mechanism. The transport mechanism includes a feeding line, a first flow line, and a second flow line arranged in parallel on the frame. The detection mechanisms are arranged on the frame and located on two sides of the transport mechanism. The grasping mechanism is arranged on the frame and used to transport workpieces on the feeding line to the detection mechanisms, transport qualified workpieces to the first flow line, and transport unqualified workpieces to the second flow line.

Abstract: Angular rate sensor comprises a x-direction oscillator, a x-oscillation driver, a z-oscillation sensing element for detecting an angular rate and an additional z-oscillation driver for triggering a free damped oscillation of the oscillator in the z-direction. An electric sensing circuit energizes the z-oscillation driver for triggering the free damped oscillation and detects the frequency of the free damped oscillation. The frequency is the resonant frequency of the oscillator. Thereafter the electric sensing circuit energizes the x-oscillation driver with the detected frequency for detecting the angular rate.