1. The probe of the eccentricity sensor is designed. The problems such as power supply needed by oscillating circuit and signal transmission from rotary part to stationary part are solved.

2. A capacitive proximity switch works with a high frequency oscillating circuit that creates an electromagnetic field on the active sensor surface by means of a capacitor.

3. The position is not detected via a positioning magnet but via an inductive oscillating circuit.

4. The utility model relates to a non-contact electronic flash light for vehicles, which is composed of a pulse oscillating circuit, a switching circuit,[http://] a temperature automatic protection circuit.

5. When a substantial or fluid substance nears this field a capacitance unbalance occurs and leads to a variation of the amplification in the oscillating circuit.

6. In this thesis, switchgear test power is supplied by a pulse power, composed of a second order oscillating circuit including a capacitance.

7. The utility model is composed of a guard circuit, an oscillating circuit, a power amplifier circuit, a volume control circuit, an accident noticing circuit, etc.

8. The algorithm is the ideal one which makes it possible to use computer-aided analysis and which applies well to the analysis of weakly and moderately nonlinear oscillating circuit.

9. According to the basic theory of crystal oscillator circuit high frequency stability oscillating circuit is designed.

10. All kinds of flow measurements are analyzed, and the principle of the nonmagnetic sensor which uses LC oscillating circuit to measure water flow are discussed in detail.