目前,商业应变片的应变敏感材料是丝状或是箔状的,因为它们的电阻率较低且不能做得很细,所以其性能和可靠性都不太好.尺寸更小的以单根应变敏感材料为敏感元件的应变传感器一直是人们追求的目标,自第一个商业化应变片诞生开始人们就一直致力于实现该 At present, strain-sensitive materials for commercial strain gauges are either filamentous or foil-shaped, because of their low resistivity and their inability to be very thin, so their performance and reliability are not good. Smaller sizes, Strain sensors that are sensitive to strain-sensitive materials have long been the target of many people and have been working since the birth of the first commercial strain gage