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Strain Gauge (Load Cell) Interface to Raspberry Pi or Arduino

Design a PCB to read an analogue signal from a strain gauge (Load Cell) with the reading ultimately being read using a Raspberry Pi or Arduino.

The strain gauge we need to use is an H10J-15t-32-dxx Load cell.

Product Details: [login to view URL]

Product Datasheet: [login to view URL]

The problem is the small voltage coming from the strain gauge.

The strain gauge sensitivity is .045 mV/V + or - 0.05 @ 6 tonnes

We have tried various analogue to digital boards which have worked with the smaller strain gauges up to 50kg, but we need to measure accurately on this strain gauge which measures up to 15 tonnes.

We need to be able to measure within an accuracy of + or - 10 kg but would prefer to 1 kg

We need to be able to connect up to 8 load cells. This should be on one board.

We have not been able to read the small signals with the following A2D boards ADS1115, ADS1015 and MCP3008 with amplifiers.

We would like you to give a brief description of your solution identifying any components you think would be able to handle the measurement of such a small voltage.

If a board is developed or if you are going to use an existing board, then we need to be able to interface with the board using a Raspberry Pi.

We will only release funds after we have a prototype built, tested and reading the measurements accurately.

Required: -

PCB Design (Gerber file format preferred)

Component list and a Bill of Materials.

An indication of the build cost of the board and components,

Znanja: Arduino, Elektro inženiring, Elektronika, Mikrokontroler, Oblikovanje tiskanih vezij v PBC

Več: raspberry pi load sensor, raspberry pi weight scale, hx711 raspberry pi library, hx711 raspberry pi python code, raspberry pi bathroom scale, raspberry pi kitchen scale, raspberry pi hx711, connect digital scale to raspberry pi, C/C++, JavaScript, MySql, PHP, html/css, phyton, opencv, raspberry pi, arduino, raspberry pi,arduino, raspberry pi gui interface, arduino raspberry pi, arduino raspberry pi projects, raspberry pi interface, strain gauge interface pic, load cell summing schematic, iphone load cell, load cell amplifier design, load cell amplifier schematic, load cell amplifier

O delodajalcu:
( 8 mnenja ) Northampton, United Kingdom

ID projekta: #17354475



Use instrumentation amplifier IC AD623, AD624 or some similar (gain=1000) Feed analog signal from load cell to instr amp Feed o/p of ampl into analog port of Arduino Do rest of calculations on Arduino Relevant Skills Več

£388 GBP v 4 dneh
(1 Ocena)

27 freelancerjev ponuja v povprečju za £598 na tem delu

£1000 GBP v 15 dneh
(247 Ocen)

Hi, I hope you are doing well. I have understood your project requirements which are interfacing loadcell with Arduino. I understand you have faced issue with amplifiers, Relevant Skills and Experience I have hardwa Več

£840 GBP v 20 dneh
(72 Ocen)

hello I have many experience about the loadcell, HX711 and so on I have developed the SmartGass using loadcell and HX711, mega2560 thanks Relevant Skills and Experience PCB, electrical engineer Proposed Milestones £8 Več

£888 GBP v 10 dneh
(44 Ocen)

I have over 35 years experience as an electronic design engineer, please see my profile for more details Ignore bid price at the moment Best Regards Dave Lelievre poole Dorset Relevant Skills and Experience I have ex Več

£833 GBP v 10 dneh
(26 Ocen)

Hi There, After reading the project post we are happy to offer our services to Design, Prototype and ship the Hardware to Read the load cell. Please feel free to contact us. Best Regards, Shahbaz. Relevant Skills an Več

£1000 GBP v 30 dneh
(56 Ocen)

We have already done very similar project related to these strain gauges and developed very state of the art custom boards, just check our level of quality and you will find us the right choice for u. Relevant Skills Več

£350 GBP v 10 dneh
(47 Ocen)

I have read your description and understood. I have real time experience on Arduino and Raspberry Pi to build any prototype device. Relevant Skills and Experience I can design an adapter to read the small voltage sign Več

£750 GBP v 10 dneh
(8 Ocen)

I can use a dedicated ADC with a high resolution. But we'll need to design a PCB for this, unless if you can test it on a breadboard. Relevant Skills and Experience I've designed Industrial Starndard ADC modules befor Več

£600 GBP v 10 dneh
(18 Ocen)

Hi there,I'm an electronic engineer, And i'm quiet Experienced with High Speed PCB Design and Implementation. I'm an expert in Eagle CAD,EasyEDA Relevant Skills and Experience Expert in Eagle CAD,EasyEDA and arduino Več

£500 GBP v 3 dneh
(11 Ocen)

Load cells usually have an output sensitivity of 2mV/V or 3mV/V@FS. The selected load cell sensitivity is very low, you will need a custom board with instrumentation amp, ΔΣ ADC and many filters Relevant Skills and Ex Več

£750 GBP v 14 dneh
(3 Ocen)
£777 GBP v 15 dneh
(1 Ocena)

Hello, i have read the details provided..please contact me to discuss more on the project deadline and some other few things Relevant Skills and Experience Arduino, Electrical Engineering, Electronics, Microcontroller Več

£250 GBP v 10 dneh
(9 Ocen)
£333 GBP v 10 dneh
(7 Ocen)

i made product with load cell which is similar of this type.i can provide you the best solution load cell weight meter Relevant Skills and Experience i have more than five year for product deveploment Proposed Miles Več

£666 GBP v 30 dneh
(3 Ocen)

Engineered in electronics & instrumentation Relevant Skills and Experience Presently working in steel & power sector

£277 GBP v 3 dneh
(0 Ocen)

I got expertise in designing pcbs for iot,wireless module

£694 GBP v 12 dneh
(0 Ocen)
£333 GBP v 10 dneh
(0 Ocen)

I have worked on 200 kg load cell with an accuracy of +-100 gms. The system I have developed can also send the measured weight into an Android app via bluetooth. It should also provide the calibration as well in case t Več

£444 GBP v 40 dneh
(0 Ocen)

Hello, I'm applying for the job you posted. To solve the problem, I'll build a voltage amplifier, it will be an output to the strain gauge and an input to the Arduino, by knowing the amplifier gain, I will introduce i Več

£388 GBP v 15 dneh
(1 Ocena)

Hi, I can integrate a loadcell using hx711 (24bit adc ~8bit noise) or 12 bit mcp3208 adc with atmega32. And results could be provided using serial output for any device including rasp pi. Relevant Skills and Experien Več

£527 GBP v 30 dneh
(0 Ocen)