【单选题】某等强度梁测力系统,R1为电阻应变片,应变式灵敏系数K=2.05,未受应变时,R1=120Ω. 当试件受力F时,应变片承受平均应变为800με,应变片电阻变化量ΔR1以及电阻相对变化量ΔR1/ R1分别为() A. 0.1968Ω,0.00164 B. 0.1698Ω,0.00146 C. 0.1468Ω,0.00164 D. 0.1268Ω,0.00146
【单选题】某等强度梁测力系统,R1为电阻应变片,应变式灵敏系数K=2.05,未受应变时,R1=120Ω. 当试件受力F时,应变片承受平均应变为800με,应变片电阻变化量ΔR1以及电阻相对变化量ΔR1/ R1分别为() A. 0.1968Ω,0.00164 B. 0.1698Ω,0.00146 C. 0.1468Ω,0.00164 D. 0.1268Ω,0.00146
下图为等强度梁测力系统,R1为电阻应变片,应变式灵敏系数K=2.05,未受应变时,R1=120Ω. 当试件受力F时,应变片承受平均应变为800με,应变片电阻变化量ΔR1以及电阻相对变化量ΔR1/ R1分别为()[img=156x144]1803d72a98e4765.jpg[/img] A: 0.1968Ω,0.00164 B: 0.1698Ω,0.00146 C: 0.1468Ω,0.00164 D: 0.1268Ω,0.00146
下图为等强度梁测力系统,R1为电阻应变片,应变式灵敏系数K=2.05,未受应变时,R1=120Ω. 当试件受力F时,应变片承受平均应变为800με,应变片电阻变化量ΔR1以及电阻相对变化量ΔR1/ R1分别为()[img=156x144]1803d72a98e4765.jpg[/img] A: 0.1968Ω,0.00164 B: 0.1698Ω,0.00146 C: 0.1468Ω,0.00164 D: 0.1268Ω,0.00146
下图为等强度梁测力系统,R1为电阻应变片,应变式灵敏系数K=2.05,未受应变时,R1=120Ω. 当试件受力F时,应变片承受平均应变为800με,应变片电阻变化量ΔR1以及电阻相对变化量ΔR1/ R1分别为()[img=288x254]17e43f6c6e03e44.png[/img] A: 0.1968Ω,0.00164 B: 0.1698Ω,0.00146 C: 0.1468Ω,0.00164 D: 0.1268Ω,0.00146
下图为等强度梁测力系统,R1为电阻应变片,应变式灵敏系数K=2.05,未受应变时,R1=120Ω. 当试件受力F时,应变片承受平均应变为800με,应变片电阻变化量ΔR1以及电阻相对变化量ΔR1/ R1分别为()[img=288x254]17e43f6c6e03e44.png[/img] A: 0.1968Ω,0.00164 B: 0.1698Ω,0.00146 C: 0.1468Ω,0.00164 D: 0.1268Ω,0.00146
下图为等强度梁测力系统,R1为电阻应变片,应变式灵敏系数K=2.05,未受应变时,R1=120Ω. 当试件受力F时,应变片承受平均应变为800με,应变片电阻变化量ΔR1以及电阻相对变化量ΔR1/ R1分别为()[img=156x144]17de93107529b39.jpg[/img] A: 0.1968Ω,0.00164 B: 0.1698Ω,0.00146 C: 0.1468Ω,0.00164 D: 0.1268Ω,0.00146
下图为等强度梁测力系统,R1为电阻应变片,应变式灵敏系数K=2.05,未受应变时,R1=120Ω. 当试件受力F时,应变片承受平均应变为800με,应变片电阻变化量ΔR1以及电阻相对变化量ΔR1/ R1分别为()[img=156x144]17de93107529b39.jpg[/img] A: 0.1968Ω,0.00164 B: 0.1698Ω,0.00146 C: 0.1468Ω,0.00164 D: 0.1268Ω,0.00146