All Questions
9 questions
2
votes
1
answer
275
views
10 µF and 0.1 µF capacitors not making any difference in filtering out noise
I have two circuits (green and brown) featuring a load cell, HX711, and ESP32-C3:
The HX711 and ESP32-C3 go on top of those round female pin header.
The only difference between them is that one is ...
- 293
0
votes
0
answers
264
views
Methods for improving/smoothing the load cell signal
I am using a Delta AS02LC-A cell module and a Zemic 25 kg load cell. Here are some details of the load cell calibration certificate:
And this is the appearance, specifications and wiring diagram of ...
- 1
1
vote
1
answer
142
views
Comparing ADC noise parameters
I'm looking at two ADC parts the ADS1230 and the ADS1231; the 1231 is an almost pin-compatible upgrade (if you don't need the ×64 gain setting) which provides 24-bit resolution and some more noise ...
- 8,744
0
votes
2
answers
845
views
Electrical noise in 18650 3.7V lithium batteries
I'm interested in knowing the electrical noise in Volts of modern 3.7V lithium batteries, specifically my model is NCB18650B, but since I don't have an oscilloscope I can't measure it. On the internet ...
- 53
0
votes
1
answer
1k
views
Minimize load cell amplifier noise and interference INA122P
I am trying to simulate car pedals with load cells. For that I wired up 2x20kg load cells and 1x 100kg load cell each wired to a INA122P which join up at a stm32f103c8 blue pill board.
The circuit ...
- 13
1
vote
0
answers
523
views
HX711 noise, but only in a specific environment
I'm working on a small project at my farm to automate vegetable weighting. The system consists of an STM32 MCU, some additional ICs (matrix decoder, parallel-serial converter for some push-buttons etc....
- 31
0
votes
1
answer
213
views
Suitable op-amp and voltage regulator for 16-bit ADC
I would like to use the AD4008 16-bit ADC from Analog Devices to sample a load cell. I also need a linear regulator and driver amplifier and instrumentation amplifier.
I am curious to know if these ...
- 27.6k
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
2
answers
4k
views
Filtering Noise on Strain Gauge Circuit
I am making a digital weighing scale circuit and currently having difficulties understanding filters that are commonly used to reduce noise in these type of circuits. My load cell is a full-bridge ...
