A flush-type conductor strain pressure sensor was developed to conduct quantitative monitoring over the running state of the three precision jointed parts in the fuel system so that a new fault diagnosis method can be found without disassembling the diesel engine. 为了定量检测柴油机燃油系3个精密偶件的状态、实现柴油机不解体故障诊断,研制了嵌入式电阻应变压力传感器;