| 摘要 |
PURPOSE:To obtain a resonance circuit excellent in temperature stability at low cost by connecting a resistance element having reverse temperature change to temperature change of net resistance of a coil in series to the coil. CONSTITUTION:Temperature change of net resistance of a coil 1 is compensated by a resistance element 2 having negative temperature coefficient, and parallel resonance is caused by a condenser 3. By compensating in this way, a fixed LC resonance circuit can be realized at all times irrespective of temperature. |
