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针对某陀螺生产厂家新引入的超辐射发光二极管光源在原光源驱动设备上的功率变化异常的问题,对光源温控环节的传递函数和相应控制参数进行了理论和试验分析。相比陀螺常用SLD光源,新引入SLD光源内部热敏电阻与SLD管芯间距大得多,且不在同一热沉上,这使得该厂光源温控部分的传递函数出现明显时间滞后,表现为其对微分环节依赖性增强。通过对原光源驱动设备上微分环节的优化设计,可使热敏电阻位置相差较大的不同厂家的光源同时获得良好温控效果。上述结果对于理解SLD光源温控PID(比例-积分-微分)参数差异性、提高SLD光源温度控制适应性提供了客观依据。
Aiming at the abnormal power change of newly-introduced superluminescent LED light source of a certain gyro manufacturer in the original light source driving device, the theoretical and experimental analysis of the transfer function and the corresponding control parameters of the light source temperature control link are carried out. SLD light source compared to common gyroscope, the introduction of new SLD light source internal thermistor and SLD die much larger spacing, and not on the same heat sink, which makes the plant light source temperature control part of the transfer function obvious time lag, the performance of its Increased dependence on differential links. By optimizing the differential part of the original light source driving device, the light sources of different manufacturers with different positions of the thermistors can obtain good temperature control effects at the same time. The above results provide an objective basis for understanding the difference of parameters of SLD light source PID (Proportional-Integral-Derivative) parameters and improving the temperature control adaptability of SLD light source.