All Questions
17 questions
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Trying to set up a data acquisition system--have some questions
I'm setting up a data acquisition system for some load cell, pressure ducer, and thermocouple inputs. Currently looking at the LabJack T7 for my ADC and INA125 for my load cell amp. PTs are self-...
- 1
0
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0
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38
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Extending load cell wires for weight transmitter connection
I have a load cell that I want to install in a certain location. I plan to connect its output to a load cell transmitter, which is approximately a meter away from the maximum length of the load cell ...
- 41
3
votes
2
answers
217
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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
0
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2
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143
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Load Cell Amplifier
I'm not from an electrical background and am looking for possible options to amplify the load cell output. I'm using a load cell with a 2 mV/V output.
http://www.sentranllc.com/pub/datasheets/...
- 1
0
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161
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RaspberryPi: Load cells and HX711 amplifier
I've created an app that will read 10 weighing scales at the same time with separate values but since some wires are like 1 meter long, I get so much noises in the values.
I just wanna know if what's ...
- 101
0
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3
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2k
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How to mount four 6-wire 10V load cells on Arduino or Raspberry Pi?
I want to connect four 6-wire load cells (Tedea Huntleigh Compression & Tension Load Cell 300kg, 15V dc, IP67, product page and datasheet) into an Arduino or Raspberry Pi and get four independent ...
- 219
1
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1
answer
1k
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Problem encountered while amplifying load cell signal with LM358
I have an S-type load cell to measure weight up to 100 Kg. Its datasheet mentions 3mV/V against full range and excitation voltage.
When no weight is applied, the voltage is 9.9 mV (Excitation is 10 V)...
- 301
0
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1
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7k
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Has anyone worked with HX711 load cell amplifier / weighting sensor through Arduino? [closed]
I am talking about this product: http://www.ebay.in/itm/232127458591?aff_source=Sok-Goog
I need to know the following:
1) What outputs are represented by DT and SCK?
2) What inputs are B- and B+?
...
- 113
1
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0
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111
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2x rs232 communication, single wirelss connection, also rs232 to control load cell perameters
I am struggling to find any information on the ability to have 2 rs232 connections with 1 wifi connection.
I have found this wireless chip, which supports, five Ethernet ports, two serial ports:
http:...
1
vote
1
answer
140
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Is there any pitfalls in converting (amplifying) analog DC signal from transducer to measurements, except noise
I need to measure force with a load cell and transmit it to a computer.
The load cell outputs 2mV/V for whole range. Vdd < 12V, so I have 0..24mV signal, which I assume is enough to have good ...
- 125
6
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2
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23k
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Connect HX711 to a three wire load cell
I have the following load cells:
I'm using the following HX711 amplifier
Every guide i can find on the internet describes how to connect a load cell with four wires to the amplifier. How can i ...
- 161
0
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2
answers
10k
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How to set up load sensor in a full bridge with amplifier?
I I'm somewhat new to electronics so forgive me for what I don't know. I'm learning as I go along here.
The overall project is I'm trying to make a scale connected to an arduino board that will ...
4
votes
1
answer
2k
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Load cell and amplifier
I'm trying to get a reading from a Digi-Star load cell.
I'm using the INA122 instrumentation amplifier, the schematic is attached.
Nothing complicated, I connect the cell output directly to the ...
- 89
0
votes
1
answer
1k
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How to read signal from load cell?
I took apart a weighing scale to get the load cell from it. The weight scale was capable of measuring up to 85 pounds with 5 grams precision. The voltage drop of the weight scale, however, is too ...
- 511
0
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1
answer
1k
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Load cell without In-amp
I have a 0-1kg load cell with 4 wires: Excitation + and -, and Signal + and -. I haven't had any problems wiring them up correctly without amplification, and my voltmeter shows me a 1 mV difference ...
- 103
0
votes
1
answer
915
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Instrumentation amplifier for load cells
In the most part of tutorials I see they use INA125 as the instrumentation amplifier for load cells.
Is it ok to use another cheaper amplifier as the AD8237? Or is there a specification or ...
- 293
2
votes
1
answer
128
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Hooking up a load cell to a temperature logger
I have an idea for little project where I want to log weight changes (standalone) on a bee hive, preferably low-cost.
Now there's a lot of cheap temperature loggers on the market, for example this ...
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