Questions tagged [wheatstone-bridge]
A circuit to measure an unknown resistance.
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How to simulate for the Gain of opamp Bridge Differential Amplifier?
Hi experts,
I have this circuit, with a bridge connected to an op-amp in differential form, and I want to simulate it for the Gain of the circuit in PSPICE.
I have found it's gain by hand, which comes ...
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Wiring of INA128 instrumentation amplifier to Wheatstone bridge
Is there any issue with the wiring or calculations of my INA128 instrumentation amplifier to my load cell Wheatstone bridge? Currently I see no change in the output when connected to the oscilloscope. ...
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Wheatstone bridge connected to op-amp: confusion about Vout formula
I am not sure when the correct formula for Vout is Vout = G(VA - VB) or Vout = -G(VA - VB).
Can you explain the difference between these two examples? The circuits and the formulas provided are from ...
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Choosing points for analysing equivalent resistance
I realized there is something fundamental about equivalent resistance I don't understand in terms of application. I understand the part about mechanically simplifying resistors into one resistor, just ...
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Input/output resistance for an accelerometer/Wheatstone bridge
I am looking at the MS 3028 Piezoresistive Accelerometer.
This is the internal schematic of the component, as a Wheatstone bridge, which per my understanding means it's a quarter bridge with other ...
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Very irregular reading of load cells with the hx711 (on an ESP32)
I'm using an ESP32-S3-WROOM-1U and a four load cells, connected in a full Wheatstone bridge to an HX711 to read the weight of an ...
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Wheatstone bridge to voltage follower circuit not working as expected
I am designing the following circuit shown in the atached image. It is a wheatsone bridge with the differential output attached to voltage followers on each terminal and then connected to a single ...
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How to demodulate a signal that was frequency-modulated by an offset sine?
I have a strain-gauge (SG) in a Wheatstone-bridge (WB) configuration that I would like to measure on the 0-250Hz band on 16 bit ...
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How can I apply Kirchoff Law for a capacitor in Wheatstone Bridge?
I got this question in an exam, where I was given an unbalanced Wheatstone bridge and was asked to find the voltage across the capacitor. I can't understand how to apply Kirchhoff's laws for a ...
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How do you compensate for a varying DC offset when using a wheatstone bridge?
Background
I have a sensitive magnetic sensor that is packaged as a wheatstone bridge with a 20k
device resistance. I am using it to measure the rotation of a magnet. It is possible to calibrate out ...
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Wheatstone Bridge with Instrumentation Amplifier
I have set up this circuit:
I measure an output of 0.61 V from the instrumentation amplifier. The gain of the amplifier is set to 21. The formula for the output is given by:
Uout=(1+2R1/Rg)×(R3/R2)×(...
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Online motor inductance measurement at different rotor angle
I wanted to measure the inductance of PMSM at different rotor angles. I'm familiar with the offline methods of measuring motor inductance but would like to measure a motor's inductance while it's ...
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Analysis of Wheatstone Bridge circuit with connected output terminals
I am given the following case of a Wheatstone Bridge circuit where the output Terminals \$U_{a}\$ and \$U_{b}\$ are connected with a wire and need to derive both output voltages as functions of the ...
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Determining resistors in a Wheatstone Bridge from Ohmmeter readings - Unsolvable system of equations
I have been challenged in an assignment that uses a Wheatstone bridge to find values for the resistances in each arm, given that they are 1 kOhm +- 1%, and using only Ohmmeter readings and short-...
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Help testing Pressure Sensors
I have a few ME600 Metallux sensors that I harvested from some discarded products. I want to build a project with these but would like to verify they work before getting too far. From the datasheet ...
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