wheatstone bridge circuits used in

[PrescottDan]

What circuits use a wheatstone bridge?

When are wheatstone bridges used?

To balance a sensors or strain gauge resistor? how so

 

[HTA]

A Wheatstone bridge is often used in sensor to get a differential signal, adjust sensitivity and range of a sensor signal(like strain gauge or magnetic/optical encoder). The signal conditioning for a Wheatstone bridge is then does the amplification, linearization and line driving to transmit the sensor signal(example: https://www.sensorsmag.com/machine-...ignal-conditioning-and-safe-transmission-7244 ).

Enjoy your design work!

 

[PrescottDan]

A Wheatstone bridge is often used in sensor to get a differential signal

What is mostly an input to a wheatstone bridge? what type of signal

A Wheatstone bridge controls the current and balances it to a null zero?

Why would you want a differential signal on the output of a wheatstone bridge? to be used for what?

The output of a wheatstone bridge goes to a sensor or strain gauge?

 

[D.A.(Tony)Stewart]

As Einstein once said, "everything is relative"


So too is a bridge with a constant voltage or current source depending on the measurement.

 

[HTA]

What is mostly an input to a wheatstone bridge? what type of signal

A Wheatstone bridge controls the current and balances it to a null zero? 1)

Why would you want a differential signal on the output of a wheatstone bridge? to be used for what? 2)

The output of a wheatstone bridge goes to a sensor or strain gauge? 3)

1) - a constant current or voltage is supplied to the bridge!
2) - common mode noise is suppressed!
3) - the SG-sensor is part of the bridge to generate the sensor signal!

Enjoy your design work!

 

[PrescottDan]

Sometimes I see diodes in the wheatstone bridge, why would they want to use diodes with the resistors in series for a wheatstone bridge? the diodes do what , when used when a wheatstone bridge

The diodes are in series inside the wheatstone bridges resistors, the diodes are in a polarity with the resistors in the wheatstone bridge for a reason

the SG-sensor is part of the bridge to generate the sensor signal!

If a sensor or strain gauge is part of the bridge, the other 3 resistors of the bridge do what?

The sensor or strain gauge is variable, the other 3 resistors are fixed

Since the sensor and strain gauge varies is resistance , the wheatstone bridge does what when the sensor or strain gauge is varying up and down in resistance?

so the output of a wheatstone bridge is a differential output and goes to what kind of circuit?