Calculate the corrected gauge factor K0 for the three wire connected strain gauge above,
Gauge resistance =120Ω
Wire resistance Rwire1=Rwire2=Rwire3=2Ω
Gauge factor 2.1
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Calculate the corrected gauge factor K0 for the three wire
connected strain gauge above,
Gauge resistance...
A 120 ? strain gauge with a gauge factor of 2 is mounted on a beam...
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...
A strain gauge has a normal resistance of 360Ω and a gauge factor of 2.01. It...
A strain gauge has a normal resistance of 360Ω and a gauge factor of 2.01. It is used in a quarter bridge with the other fixed resistors being 360s2 and with a supply voltage of 3.0V. The bridge is initially balanced and then the gauge is heated to 300°C without any stress applied. What will be the bridge's linearised output Volin mV) if at 300°C, the apparent strain is 75strain and the S variation is +1.025%? (Answer must match to...
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...
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?
3. A resistance strain gauge with R-120 ohm and a gauge factor of 2 is placed...
3. A resistance strain gauge with R-120 ohm and a gauge factor of 2 is placed in an equal-arm Wheatstone bridge in which all the resistances are equal to 120 ohm. If the maximum gauge current is to be 0.05A, what is the maximum allowable bridge excitation voltage?
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...
4. To precisely measure the change in the electrical resistance of a strain gauge, we commonly...
4. To precisely measure the change in the electrical resistance of a strain gauge, we commonly use the Wheatstone bridge. Consider the Wheatstone bridge shown below Derive the expression for Vo in terms of VEx, RI, R2, R3, and R4. Under what condition is the bridge balanced, that is, Vo 0 a. b. Let Resistor 2 represent a strain gauge, whose resistance changes from R2 to R2+ dR2. The resistances of all the other resistors stay fixed. This is called...
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...
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...
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...
A strain gauge has a normal resistance of 360Ω and a gauge factor of 2.01. It is used in a quarter bridge with the other fixed resistors being 360s2 and with a supply voltage of 3.0V. The bridge is initially balanced and then the gauge is heated to 300°C without any stress applied. What will be the bridge's linearised output Volin mV) if at 300°C, the apparent strain is 75strain and the S variation is +1.025%? (Answer must match to...
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...
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?
3. A resistance strain gauge with R-120 ohm and a gauge factor of 2 is placed in an equal-arm Wheatstone bridge in which all the resistances are equal to 120 ohm. If the maximum gauge current is to be 0.05A, what is the maximum allowable bridge excitation voltage?
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...
4. To precisely measure the change in the electrical resistance of a strain gauge, we commonly use the Wheatstone bridge. Consider the Wheatstone bridge shown below Derive the expression for Vo in terms of VEx, RI, R2, R3, and R4. Under what condition is the bridge balanced, that is, Vo 0 a. b. Let Resistor 2 represent a strain gauge, whose resistance changes from R2 to R2+ dR2. The resistances of all the other resistors stay fixed. This is called...
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...
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...
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