可精确测量1～50000磅/吋~2的压力变换器以及工作范围为几克～数几百吨的负荷传感器目前为通用的一次测量仪表。这些测量仍采用人所共知的应变片技术,现在只不过采用比较好的材料,精度与稳定性均有显著提高罢了。由于使用线性与滞后现象特性比较好的钢材以及在成品设计,使用与制造技术方面应用先进技术,这就导致了压力变换器的精度可在±0.1%以内。总的来说,这是与改进的应变片元件相结合的缘故。 Pressure transducers capable of accurately measuring 1 to 50,000 lbs / in ~ 2 and load cells operating in the range of several to several hundreds of tons are currently a common gauge. These measurements are still based on the well-known strain gage technology and are now only marginally improved with better material accuracy and stability. Due to the use of steels with good linearity and hysteresis characteristics and the application of advanced technology in the design, use and manufacture of finished products, the accuracy of pressure transducers can be within ± 0.1%. In general, this is due to the combination of the improved strain gauge element.