A 120 Ω strain gauge with a gauge factor of 2 is mounted on a beam and connected in a Wheatstone bridge as shown in Figure Q1a. The bridge is powered by a 12 V DC supply in series with a 510 Ω resistance. The beam is subject to a tensile force, which produces an axial strain of 940 microstrain measured by the strain gauge .
a) Under no strain, calculate the current in the strain gauge and the power dissipated by the strain gauge in Figure Q1a.
b) Calculate the bridge output voltage for the circuit in Figure Q1a when the beam is under strain.
c) An additional identical strain gauge is mounted on the beam at 90° to the orientation of the first strain gauge so that this second gauge senses the lateral strain (Figure Q1b). Poisson's ratio for the beam material is 0.3 Both strain gauges are connected in the bridge as shown in Figure Q1b Calculate the bridge output voltage when the beam is under strain.
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A 120 ? strain gauge with a gauge factor of 2 is mounted on a beam...
Problem 4. An axial strain gauge and a transverse strain gauge are mounted to the top...
Problem 4. An axial strain gauge and a transverse strain gauge are mounted to the top surface of a steel beam that experiences a uniaxial stress of 2222 psi. The gauges are connected to arms1 and 2 of a Wheatstone bridge. With a purely axial load applied, determine the bridge constant for the measurement system. If SE 250 uV and E, -10 V, estimate the average gauge factor of the strain gauges. For this material, Poisson's ratio is 0.3 and...
As shown below (Fig.1), A strain gage with gage factor of 2.02 is mounted on the bottom of a beam...
As shown below (Fig.1), A strain gage with gage factor of 2.02 is mounted on the bottom of a beam to measure the strain on the surface of the beam. The beam's Young's Modulus is 193 GPa. A wheatstone bridge circuit was constructed as sketched in Fig. 2. Al resistors including the gage itself is 1202. Supply voltage is 5.0 V DC. The bridge is initially balanced when there is no load (a). when a downward load is added, will...
3. Two different types of strain gauges with a nominal resistance of 120 2 are both...
3. Two different types of strain gauges with a nominal resistance of 120 2 are both used to measure an axial strain in Figure 3. They are connected to a Wheatstone bridge (the lead wire effect is negligible) at R1 and R3 R3 is a nickel wire strain gauge with a gauge factor -12.1 and R1 is a nicrome wire strain gauge with a gauge factor 2.1. The bridge has a supply voltage of 4.5V and two fixed resistors R2...
P2: (40points) As shown below (Fig.1), A strain gage with gage factor of 2.02 is mounted on the b...
P2: (40points) As shown below (Fig.1), A strain gage with gage factor of 2.02 is mounted on the bottom of a beam to measure the strain on the surface of the beam. The beam's Young's Modulus is 193 GPa. A wheatstone bridge circuit was constructed as sketched in Fig. 2. All resistors including the gage itself is 12002. Supply voltage is 5.0 V DC. The bridge is initially balanced when there is no load Strain gage Fig.1 Ri R2 DC...
2) One arm of a Wheatstone bridge is a 50 k2 strain gauge (S = 2.0)....
2) One arm of a Wheatstone bridge is a 50 k2 strain gauge (S = 2.0). This strain gauge is bonded to a metal fixture for tensile loading, and the metal has a Young's Modulus E-2.5 MPa. The other 3 arms are fixed 50 kO resistors. The bridge is powered by 5Vv DC as shown, and Eo is the output voltage. a) Derive a relationship for Eo as a function of tensile stress o in the metal substrate, ΔL ....
Question 2 Figure Q2 shows a strain gauge bonded to a piece of steel under a...
Question 2 Figure Q2 shows a strain gauge bonded to a piece of steel under a tensile force. The direction of strain measurement is at 90° to the direction of the force. The gauge has been selected to be self-compensating for temperature but the leads to and from the gauge are subject to temperature variations of 130 °C. The strain gauge and the metal have the following properties: Steel specification Gauge specification Gauge factor-2.00 Young's modulus -210 GN/m2 Poisson's ratio...
5. (20 points) We use strain gauge to create a fish weight scale. The strain gauges are mounted on a plastic tube with fish hanging on to it. The strain gauges have resistance R 2400 2 (unstrained...
5. (20 points) We use strain gauge to create a fish weight scale. The strain gauges are mounted on a plastic tube with fish hanging on to it. The strain gauges have resistance R 2400 2 (unstrained) and the GF 2.14. A (1) Which is the dummy gauge, A or B? Circle the dummy gauge. (2) Show how to wire the two gauges and two fixed 2400 Ω resistors into the bridge circuit to provide temperature compensation, using the graphs...
A strain gauge that has a nominal resistance of 350 ? and a gauge factor of...
A strain gauge that has a nominal resistance of 350 ? and a gauge factor of 1.8 is mounted in an equal-arm bridge, which is balanced at a zero applied strain condition. The gauge is mounted on a 11.8 1-cm aluminum rod, with E 70 GPa. The gauge senses axial strain. The bridge output is 1 mV for a bridge input of 5 V. What is the applied load, assuming the rod is in uniaxial tension?
A strain gauge that has a nominal resistance of 3500 and a gauge factor of 1.8...
A strain gauge that has a nominal resistance of 3500 and a gauge factor of 1.8 is mounted in an equal-arm bridge, which is balanced at a zero applied strain condition. The gauge is mounted on a 1cm2 aluminum rod, with Em 70GPa. The gauge senses axial strain. The bridge output is 1mV for a bridge input of 5V. What is the applied load, assuming the rod is in uniaxial tension? Select the correct answer. Select one: 241.9N 2619N 2319N...
Four strain gauges are mounted on a cantilever beam in a configuration like that shown in Error! Reference source not f...
Four strain gauges are mounted on a cantilever beam in a configuration like that shown in Error! Reference source not found. 6. It is used to measure vibrational bending moment that is applied to the beam itself. The specifications of the load cell are given as follows .Modulus of Elasticity: E-120 GPa · Beam dimensions (Length × Height (h) × Width (b)): 25cm × 0.75cm × 2.5cm .Non-deflected resistances of the strain gauges-3002 Strain gauge factor-3 .Wheatstone bridge voltage supply...
Problem 4. An axial strain gauge and a transverse strain gauge are mounted to the top surface of a steel beam that experiences a uniaxial stress of 2222 psi. The gauges are connected to arms1 and 2 of a Wheatstone bridge. With a purely axial load applied, determine the bridge constant for the measurement system. If SE 250 uV and E, -10 V, estimate the average gauge factor of the strain gauges. For this material, Poisson's ratio is 0.3 and...
As shown below (Fig.1), A strain gage with gage factor of 2.02 is mounted on the bottom of a beam to measure the strain on the surface of the beam. The beam's Young's Modulus is 193 GPa. A wheatstone bridge circuit was constructed as sketched in Fig. 2. Al resistors including the gage itself is 1202. Supply voltage is 5.0 V DC. The bridge is initially balanced when there is no load (a). when a downward load is added, will...
3. Two different types of strain gauges with a nominal resistance of 120 2 are both used to measure an axial strain in Figure 3. They are connected to a Wheatstone bridge (the lead wire effect is negligible) at R1 and R3 R3 is a nickel wire strain gauge with a gauge factor -12.1 and R1 is a nicrome wire strain gauge with a gauge factor 2.1. The bridge has a supply voltage of 4.5V and two fixed resistors R2...
P2: (40points) As shown below (Fig.1), A strain gage with gage factor of 2.02 is mounted on the bottom of a beam to measure the strain on the surface of the beam. The beam's Young's Modulus is 193 GPa. A wheatstone bridge circuit was constructed as sketched in Fig. 2. All resistors including the gage itself is 12002. Supply voltage is 5.0 V DC. The bridge is initially balanced when there is no load Strain gage Fig.1 Ri R2 DC...
2) One arm of a Wheatstone bridge is a 50 k2 strain gauge (S = 2.0). This strain gauge is bonded to a metal fixture for tensile loading, and the metal has a Young's Modulus E-2.5 MPa. The other 3 arms are fixed 50 kO resistors. The bridge is powered by 5Vv DC as shown, and Eo is the output voltage. a) Derive a relationship for Eo as a function of tensile stress o in the metal substrate, ΔL ....
Question 2 Figure Q2 shows a strain gauge bonded to a piece of steel under a tensile force. The direction of strain measurement is at 90° to the direction of the force. The gauge has been selected to be self-compensating for temperature but the leads to and from the gauge are subject to temperature variations of 130 °C. The strain gauge and the metal have the following properties: Steel specification Gauge specification Gauge factor-2.00 Young's modulus -210 GN/m2 Poisson's ratio...
5. (20 points) We use strain gauge to create a fish weight scale. The strain gauges are mounted on a plastic tube with fish hanging on to it. The strain gauges have resistance R 2400 2 (unstrained) and the GF 2.14. A (1) Which is the dummy gauge, A or B? Circle the dummy gauge. (2) Show how to wire the two gauges and two fixed 2400 Ω resistors into the bridge circuit to provide temperature compensation, using the graphs...
A strain gauge that has a nominal resistance of 350 ? and a gauge factor of 1.8 is mounted in an equal-arm bridge, which is balanced at a zero applied strain condition. The gauge is mounted on a 11.8 1-cm aluminum rod, with E 70 GPa. The gauge senses axial strain. The bridge output is 1 mV for a bridge input of 5 V. What is the applied load, assuming the rod is in uniaxial tension?
A strain gauge that has a nominal resistance of 3500 and a gauge factor of 1.8 is mounted in an equal-arm bridge, which is balanced at a zero applied strain condition. The gauge is mounted on a 1cm2 aluminum rod, with Em 70GPa. The gauge senses axial strain. The bridge output is 1mV for a bridge input of 5V. What is the applied load, assuming the rod is in uniaxial tension? Select the correct answer. Select one: 241.9N 2619N 2319N...
Four strain gauges are mounted on a cantilever beam in a configuration like that shown in Error! Reference source not found. 6. It is used to measure vibrational bending moment that is applied to the beam itself. The specifications of the load cell are given as follows .Modulus of Elasticity: E-120 GPa · Beam dimensions (Length × Height (h) × Width (b)): 25cm × 0.75cm × 2.5cm .Non-deflected resistances of the strain gauges-3002 Strain gauge factor-3 .Wheatstone bridge voltage supply...
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