Re-design a temperature sensor


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.

Квалификация: Схемотехника, Электротехника, Электроника

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О работодателе:
( 1 отзыв ) Villejuif, France

ID проекта: #15012696

24 фрилансеров(-а) в среднем готовы выполнить эту работу за $187


A proposal has not yet been provided

$333 USD за 7 дней(-я)
(55 отзывов(-а))

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 Больше

$250 USD за 15 дней(-я)
(39 отзывов(-а))

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 Больше

$155 USD за 3 дней(-я)
(29 отзывов(-а))

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 за 30 дней(-я)
(28 отзывов(-а))

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

$250 USD за 19 дней(-я)
(42 отзывов(-а))

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 за 6 дней(-я)
(26 отзывов(-а))

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 Больше

$200 USD за 7 дней(-я)
(23 отзывов(-а))
$111 USD за 3 дней(-я)
(27 отзывов(-а))

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

$555 USD за 3 дней(-я)
(14 отзывов(-а))

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 Больше

$200 USD за 15 дней(-я)
(5 отзывов(-а))

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 за 3 дней(-я)
(2 отзывов(-а))

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 за 15 дней(-я)
(6 отзывов(-а))

A proposal has not yet been provided

$165 USD за 6 дней(-я)
(4 отзывов(-а))

Hello, I can do it.

$198 USD за 3 дней(-я)
(2 отзывов(-а))

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 Больше

$155 USD за 3 дней(-я)
(1 отзыв)

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 Больше

$100 USD за 10 дней(-я)
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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 за 1 день
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$443 USD за 9 дней(-я)
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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 Больше

$155 USD за 3 дней(-я)
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$111 USD за 3 дней(-я)
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