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。如果将R1置于单臂电桥,桥源为直流4V,电桥输出电压以及电桥非线性误差分别为()[img=288x254]17e43f6c6e03e44.png[/img]
A: 0.00164V,0.041%
B: 0.00146V,0.041%
C: 0.00164V,0.082%
D: 0.00146V,0.082%
A: 0.00164V,0.041%
B: 0.00146V,0.041%
C: 0.00164V,0.082%
D: 0.00146V,0.082%
举一反三
- 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。如果将R1置于单臂电桥,桥源为直流4V,电桥输出电压以及电桥非线性误差分别为()。 A: 0.00164V,0.041% B: 0.00146V,0.041% C: 0.00164V,0.082% D: 0.00146V,0.082%
- 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。如果将R1置于全桥电路,桥源为直流4V,电桥输出电压以及电桥非线性误差分别为( )。[img=156x144]18037b950865967.jpg[/img] A: 0.00656V,0.041% B: 0.00656V,0 C: 0.00328V,0.041% D: 0.00328V,0
- 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]17de93107529b39.jpg[/img] A: 0.1968Ω,0.00164 B: 0.1698Ω,0.00146 C: 0.1468Ω,0.00164 D: 0.1268Ω,0.00146