Abstract：Durability test of ultrasonic heat meter (UHM) were carried out, and 5 conditions causing UHM failure were found. Those conditions includes the invalidation of ultrasonic transducer, the measuring tube or ultrasonic reflector fixture made of plastic, calculator, sealing ring of tube, and the temperature sensor. The changes of data showed by UHM are analyzed, under the 5 failure modes mentioned above. The corresponding methods are pointed out to improve the durability of UHM.
杜伟鹏,陈果夫,赵建亮. 超声波热量表在耐久性试验中失效模式及原因的分析[J]. 计量学报, 2014, 35(z1): 141-145.
DU Wei-peng,CHEN Guo-fu,ZHAO Jian-liang. Analysis of Failure Modes and the Reasons of Ultrasonic Heat Meter by Durability Test. Acta Metrologica Sinica, 2014, 35(z1): 141-145.
2014, Vol. 35 
