关键词: 载荷谱采集；六分力传感器；应变片标定；汽车试验场；运动型多用途汽车

Abstract: In order to collect the load spectrum data of an sport utility vehicle(SUV)model in the automobile test field, a number of six-component force sensors, acceleration sensors and displacement sensors are installed on the vehicle, and strain gauges are pasted on the chassis suspension parts and the body position, and are marked as strain gauges. The sensor is connected to the data acquisition system to record the load changes when the vehicle drives over the reinforced durable pavement of the automobile test field. By processing the collected raw data, such as drift removal, it is convenient for later statistical analysis and calculation verification. This paper expounds the process of calibration and production of strain gauge sensors and the general scheme of load spectrum acquisition. Combined with long-term practical experience, the main points of concern and the troubleshooting methods for common faults are named, so as to provide a reference for the development of related tests.

Key words: Load spectrum collection; Six component force sensor; Strain gauge calibration; Vehicle proving ground; Sport utility vehicle