CAJ | 학술논문

设计一种高精度、高抗干扰的内燃机活塞温度多路红外遥测系统.该系统用热电偶将测点的温度变成电压信号后,再用电压/频率转换器使之成为频率信号,频率信号驱动红外发光二极管发送红外光脉冲;在接收端,光敏三极管接收红外光脉冲,经反变换之后,通过接收器记录的电压值反映出测点的温度值.试验结果表明:该测温系统软硬件设计合理,方案可行;实现微机多路巡回检测,能全面测量活塞温度.
설계일충고정도、고항간우적내연궤활새온도다로홍외요측계통.해계통용열전우장측점적온도변성전압신호후,재용전압/빈솔전환기사지성위빈솔신호,빈솔신호구동홍외발광이겁관발송홍외광맥충;재접수단,광민삼겁관접수홍외광맥충,경반변환지후,통과접수기기록적전압치반영출측점적온도치.시험결과표명:해측온계통연경건설계합리,방안가행;실현미궤다로순회검측,능전면측량활새온도.
A high precision, high antijamming multipoint infrared telemetry system was developed to measure the piston temperature in internal combustion engine. The temperature at the measuring point is converted into corresponding voltage signal by the thermo-couple first. Then after the V/F stage, the voltage signal is converted into the frequency signal to drive the infrared light-emitting diode to transmit infrared pulses. At the receiver end, a photosensitive audion receives the infrared pulses. After conversion, the voltage recorded by the receiver stands for the magnitude of temperature at the measuring point. Test results of the system indicate that the system is practical and the system can perform multipoint looping temperature measurements for the piston.