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Re-design a temperature sensor

Hello,

I need to re-design a temperature sensor, a RTD-100. The current design is based on a microchip AN687 (figure 5, page 4).

The issue is that the sensor probe is used under an electromagnetic field, i.e. an induction heater. And that the IC used in our design tends to fail when the sensor probe is placed inside the magnetic field.

Literrature indicates that RTD-100 are safe to use in electromagnetic environment, with few noise. The isse comes most likely from the signal conditionning path.

We are looking at redesigning the sensor, signal conditionning path to make it more robust, and, if possible, simpler.

We only need a 1°C precision. Temperature range is 0°C to 350°C.

Skills: Circuit Design, Electrical Engineering, Electronics

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About the Employer:
( 1 review ) Villejuif, France

Project ID: #15012696

24 freelancers are bidding on average $187 for this job

seshupower

A proposal has not yet been provided

$333 USD in 7 days
(55 Reviews)
6.6
shahbaz1980

Hello, Have a great day. We will design and prototype the circuit to test its performance. We will demonstrate it under heavy magnetic field to verify the proper functioning. Please note " You may have to use Prope More

$250 USD in 15 days
(39 Reviews)
6.5
DamithaKD

HI, About the Project : Any Possibility for us to get a CRO Plot of the voltage across the sensor ? so we can see what is actually wrong with the waveform. and may be the analog end of the design you already have More

$155 USD in 3 days
(29 Reviews)
6.0
CoherentTech123

I am an expert with more than 15 years of experience in the field of embedded systems, electronics, prototyping and PCB Layouts. I assure you the best solution for your work. Regards Ch

$250 USD in 30 days
(28 Reviews)
5.6
bchandra1955

Professional engineer with 39 years of experience can take care Relevant Skills and Experience Instrumentations , Engineering

$250 USD in 19 days
(42 Reviews)
5.6
ilaiyaraja87

Hi sir I have 5 year experience of electronic field I have done already Rtd 100 based projects Need better signal conditioning circuit Thank you

$165 USD in 6 days
(26 Reviews)
5.2
BuiVanHieu

You need to redesign RTD signal conditioning circuit to suite with hash environment and more simple than current design. I suppose you should use the completed solution from Maxim instead of discrete devices solutio More

$200 USD in 7 days
(23 Reviews)
5.2
$111 USD in 3 days
(27 Reviews)
5.1
zeshankhan43210

Hi. I am an Eletcronics Engineer having expertise in designing sensors and their interfacing. I can do this project. Contact me.

$555 USD in 3 days
(14 Reviews)
4.8
ovaisiq

Hello Sir, I have read your problem description and this looks an interesting problem. I am electronics design engineer and I would like to do this for you. Kindly discuss details. Have a look at my upwork profile More

$200 USD in 15 days
(5 Reviews)
4.0
khurram4225

Hi, A team of technologists and engineers are here to help you. We have some best engineers from electronics engineering field. So, you may go with us and get your project done within your given deadline. Thanks

$200 USD in 3 days
(2 Reviews)
3.1
EngSolution

hi, proper PCB design by taking ground loops and Common mode noise in account, is required. Then comes signal conditioning with proper filtering from the switching frequency of the induction heater device.

$110 USD in 15 days
(6 Reviews)
3.3
sanakashif906

A proposal has not yet been provided

$165 USD in 6 days
(4 Reviews)
2.6
bogdan2451629

Hello, I can do it.

$198 USD in 3 days
(2 Reviews)
2.8
jinzhenzhu8691

I am electronic engineer, micro controller programmer My skills : - LabVIEW, MATLAB - Arduino, Pic series micro controller - PCB design, Protel, AltiumDesignr, Proteus - My Experience BLE, RF, Automatic co More

$155 USD in 3 days
(1 Review)
2.4
albertogg86

Hi Sr. I am electronic engenier, I have experience designing circuits, and PCB, I have experience with microcontrollers for embbeded systems. I can help you in your project!!! I can to develop a simple solution with More

$100 USD in 10 days
(2 Reviews)
1.7
HaniServices

Hi How are you As i am new here but working on online plate forms from the last 7 years I worked alot related to your work Thanks

$55 USD in 1 day
(6 Reviews)
1.4
$443 USD in 9 days
(0 Reviews)
0.0
safdar001

I am expert in Instrumentation and Control and I can help in this Project. I have already done similar work in a Power Plant in Pakistan. I can suggest equipments, make diagrams, Provide instructions to program the con More

$155 USD in 3 days
(0 Reviews)
0.0
$111 USD in 3 days
(0 Reviews)
0.0