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中文摘要：
将波在具有温度梯度的波导杆中运动的控制方程离散,利用差分格式编写程序,根据杆上任意一点的应变信号,计算出当波传到杆上其它任意点处的应变信号。设计实验,验证了该方法的正确性。此方法可应用于高温Hopkinson实验中,即：在波导杆上处于室温的某处粘贴应变片,由该应变片采集的应变信号,计算出试件与波导杆接触处的高温区的应变信号,利用此应变信号即可获得高温Hopkinson实验中试件的应力-应变关系。
英文摘要：
The governing equations of the waves transmitting in the waveguide bar with temperature gradient were dispersed using difference scheme,and then the strain information of any point in the bar was calculated through one point＇s strain information using computer procedure.One experiment was designed to prove this method.This method can be used in high-temperature split Hopkinson press bar（SHPB） experiment：the guide bar contacts the specimen in high-temperature area.The strain information of this area is calculated through the strain information of the room-temperature point,where a stain gauge is glued.Then the high temperature stress-strain curve of the specimen can be obtained through the strain information of the points,which connect the specimen and the waveguide bar.
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