由于灯丝电阻受温度影响而呈非线性变化，因而计算的结果一般误差很大。
However, because the filament resistance varies nonlinearly under the influence of temperature, the error of the calculating result is always great.
碳导电，并且电阻值高，可以做成细灯丝。
Carbon conducts electricity, has a high resistance and can be shaped into thin filaments.
为使阳极电流稳定在合适的区间内，设计了一种利用热敏电阻自动调节中子管灯丝电压的温度补偿电路。
To keep the anode current stable suitably, a temperature compensated circuit based on a thermal resistor to self-regulate the filament voltage has been designed.
应用推荐