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在高温下用粘贴式电阻丝应变片测量应变的问题是众所周知的.可以说,最重要之一是获得合适的温度补偿,从而可作出适当精确的温度修正.此外,应变片必需具有高灵敏度,可以略去不计的飘移和蠕变,以及良好的物理性能.对商场出售的电阻丝、温度-补偿技术和粘贴剂的研究,获得适合于从室温到1200℉下工作的应变片.被研究的电阻丝有西格蒙特·康合金479(Sigmund Cohn Co.,N.Y.),鎧甲合金D(Armour Research Foun-
The problem of measuring strain at high temperatures using a bonded resistance wire strain gauge is well known and one of the most important things to say is that proper temperature compensation is achieved so that proper and accurate temperature corrections can be made.In addition, strain gauges have to be highly sensitive, Ignore drift and creep, along with good physical properties, can be neglected Research on resistance wires, temperature-compensation techniques, and adhesives sold at the mall has resulted in strain gages that are suitable for operation from room temperature to 1200 ° F. The studied Resistance wires include Sigmund Cohn Co. (NY) 479, Armor Research Foun-