All Questions
9 questions
1
vote
0
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433
views
HX711 zero factor
I have three load cells (YZC-1B). These load cells' capacity is 50 kg. I guess I use Bogde's HX711 library.
In monitor, the zero factor for the first two load cells is 8,000,000, but for the last load ...
- 33
3
votes
2
answers
217
views
Do ADS12XX circuit need an amplifier?
I'm working on a project that use various analog sensors (load cells, microphone, pressure, etc.) All of them have an analog standard output (mv/V). I'm using a Raspberry Pi. I want to choose a module ...
- 131
2
votes
0
answers
72
views
Use of a three wire load cell
I am currently doing a project which requires the measurement of forces on a surface and to achieve this we are using 3 wire load cells.
The problem that I am running into is no matter how I orient ...
- 21
1
vote
1
answer
402
views
What would cause an ADC to stick on an arbitrary value?
I have a differential ADC (HX710) that I am using to interface a load cell. The wiring is as follows with (J4) going to the load cell:
Mostly, this reads very reliably and accurately. However, ...
- 203
-1
votes
1
answer
174
views
Analog Sensor output signal accuracy and sensitivity
I have to decide between 2 load cell models. the only difference between the two is that the output on one is 2mV/V and the other is 3mV/V. Both are rated at 2.5klbs.
Which one of them would be more ...
1
vote
3
answers
109
views
Measuring ripple voltage using on-board components. Is it possible?
I am designing a circuit with a very sensitive analog part. In order to eliminate SMPS noise from a regular power supply, the device has its own non-SMPS power supply followed by an ultra low noise ...
- 969
0
votes
1
answer
73
views
usual unloaded load cell diagonal voltage?
I found a load cell and wonder if its working or damaged since the diagonal voltage is not zero with no load on it. The diagonal voltage is about two volts when I supply 5 volts. There are no stickers ...
- 121
0
votes
2
answers
2k
views
Can I read out this 10V load cell with the 5V OpenScale board?
For a robotics project in which I want to build a kite flying robot I want to measure the pull force on the rope connected to the kite. To measure this pull force I bought this load cell (which ...
- 485
3
votes
1
answer
736
views
Monitoring a large array of load cells
I have a large array of 8x8 load cells I'd like to monitor, and I'm looking for an efficient way to do that.
Obviously, one option is 64 independent instrumentation amplifiers, but that's expensive ...
- 7,749