Answer the following problems:
Question 1
A resistor of unknown value is connected to a Wheatstone bridge circuit.
The bridge parameters for a balanced bridge are set as follows:
Rv = 1800 Ω , R2 = 200 Ω and R4 =100 Ω.
What is the unknown resistance, Rx ?
A resistor of unknown value is connected to a Wheatstone bridge circuit.
The bridge parameters for a balanced bridge are set as follows:
Rv = 1800 Ω , R2 = 200 Ω and R4 =100 Ω.
What is the unknown resistance, Rx ?
Question 2
A load cell has 4 identical strain gauges with an unstrained resistance of
120 kΩ for each gauge.
When a load is added, the gauges in tension, SG1 and SG4,increase
their resistance by 60 mΩ and the gauges in compression, SG2 and SG3, decrease their resistance by 60 mΩ.
What is the output voltage, Vout, under load?
A load cell has 4 identical strain gauges with an unstrained resistance of
120 kΩ for each gauge.
When a load is added, the gauges in tension, SG1 and SG4,increase
their resistance by 60 mΩ and the gauges in compression, SG2 and SG3, decrease their resistance by 60 mΩ.
What is the output voltage, Vout, under load?
Question 3
An unbalanced bridge is shown with a thermistor as a the transducer at 60⁰.
R2, R3 and R4 are all 27 kΩ.
The temperature resistance for the thermistor at 60⁰ is 5 kΩ.
Determine the output voltage, Vout.
An unbalanced bridge is shown with a thermistor as a the transducer at 60⁰.
R2, R3 and R4 are all 27 kΩ.
The temperature resistance for the thermistor at 60⁰ is 5 kΩ.
Determine the output voltage, Vout.