All Questions
6 questions
2
votes
0
answers
515
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AD7730 calibration failure
EDIT: The exact issue is this, the ADC has a gain register (set during internal FS calibration and again at System FS calibration) and an offset register set during system zero calibration. The ...
- 31
1
vote
1
answer
686
views
Wheatstone Bridge strain gauge thermal compensation design
I'm designing a full Wheatstone bridge for measuring the bending strain in a steel bar.
I have a circuit available to me that uses an ADS1232 to measure the output of the wheatstone bridge.
When ...
- 25
1
vote
0
answers
70
views
Why does this seem like a strange way of connecting a bridge circuit to the ADC?
I was planning to hook up a quarter bridge circuit to the AD7730LBR Analogue to Digital Converter that I bought. I was having a look at a "Load_Cell_Schematic" provided by this webpage (the download ...
- 73
0
votes
2
answers
1k
views
Using DAC to create reference in a wheatstone bridge for strain gauge?
I am designing a circuit where a microcontroller can measure the load forced upon a load cell with strain gauges, making a half bridge.
A traditional Wheatstone bridge looks like this:
Resistors ...
- 537
0
votes
1
answer
396
views
Negative differential to instrumentation amplifier causing problems
I am using a pair of strain gauges to make a weight scale. The strain gauges are the three-wire type that you can by on Amazon or Sparkfun. The strain gauges form a full wheatstone bridge, whose ...
- 115
0
votes
0
answers
694
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Loadcell strain gauge with 10 V excitation
I am designing loadcell (spec) measuring using 24-bit adc (MCP3561) with excitation 10 V. But I couldn't find the reference design for 6-wire loadcell that its sense pins connect to ref+ pin of ADC. ...
- 61