Phidget VINT Wheatstone Bridge Sensor Interface

PhidgetsSKU: RB-Phi-315
Manufacturer #: DAQ1500_0

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Sale price ¥5,156

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Description

  • Common type of resistive sensor
  • Produces a very small voltage drop
  • Equipped with a 24-bit analog to digital converter
  • Uses a high-resolution ADC to read up to two signals and plugs into any VINT port

The Phidget VINT Wheatstone Bridge Sensor Interface is a common type of resistive sensor that produce a very small voltage drop. Load cells, strain gauges, pressure sensors, and piezoelectric sensors are all examples of sensors that usually operate in this way. In order to measure these tiny voltage changes, you need a Wheatstone bridge input. The Wheatstone Bridge Phidget uses a high-resolution ADC to to read up to two of these signals and plugs into any VINT port.

Phidget VINT Wheatstone Bridge Sensor Interface- Click to Enlarge

Accurate and Adjustable
This board is equipped with a 24-bit analog to digital converter, resulting in accurate measurements at resolutions as high as 59.6 µV/V. The bridge gain can be changed in software to 1, 2, 64, or 128, allowing you to get the best resolution for the range of the sensor you use. An error event will be launched whenever the measurement value saturates, so your program can dynamically change the gain when necessary.

Phidget VINT Wheatstone Bridge Sensor Interface- Click to Enlarge

Board

  • Controlled By: VINT
  • Number of Bridge Inputs: 2

Bridge Inputs

  • Bridge Voltage Resolution: 59.6 μV/V
  • Sampling Interval Max: 60 s/sample
  • Sampling Interval Min: 20 ms/sample
  • Bridge Current Max: 50 mA
  • Input Voltage Limit Min: Ground + 0.25V DC
  • Input Voltage Limit Max: 5V Supply - 0.25V DC

Electrical Properties

  • Current Consumption Min: 25 μA
  • Current Consumption Max: *bridge current plus 1.5 mA

Physical Properties

  • Recommended Wire Size: 16 - 26 AWG
  • Operating Temperature Min: -40 °C
  • Operating Temperature Max: 85 °C

Customer Reviews

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T
Tim
Works flawlessly

I ordered this bridge sensor interface (together with the small VINT hub) for a test setup to test my own strain gauges. Works flawlessly. It is important to note that this interface only takes over the measurement. The bridge circuit itself must be implemented on a breadboard or similar. There are very good instructions for this on the Phidgets website itself.

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