Re-design a temperature sensor

$30-250 USD

Закрито

Опублікований

over 6 years ago

$30-250 USD

Оплачується при отриманні

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.

Circuit Design

Electrical Engineering

Electronics

ID проекту: 15012696

Про проект

20 пропозицій(-ї)

Дистанційний проект

Активність 7 yrs ago

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20 фрілансерів(-и) готові виконати цю роботу у середньому за $198 USD

@seshupower

A proposal has not yet been provided

$333 USD за 7 дні(-в)

4,9

(61 відгуки(-ів))

6,7

@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 Proper ICs for interfacing RTD". Feel free to contact us. Best Regards, Shahbaz.

$250 USD за 15 дні(-в)

4,8

(46 відгуки(-ів))

6,8

@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 за 30 дні(-в)

4,7

(44 відгуки(-ів))

5,9

@bchandra1955

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

$250 USD за 19 дні(-в)

4,4

(57 відгуки(-ів))

5,8

@zeshankhan43210

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 дні(-в)

4,6

(15 відгуки(-ів))

4,8

@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 control system

$155 USD за 3 дні(-в)

5,0

(2 відгуки(-ів))

3,8

@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 за 3 дні(-в)

5,0

(3 відгуки(-ів))

3,6

@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 за 15 дні(-в)

5,0

(10 відгуки(-ів))

3,7

@sodiqa32

We offer best service in business and engineering as a result of our diverse qualification and professionalism. We are reliable, innovative, creative, swift, dependable, effective, and efficient. Three kind of people exist in the world. Those who want things happen, those who make things happen, and those who watch things happen. In “wealth de success”, WE MAKE THINGS HAPPEN

$30 USD за 1 день

5,0

(2 відгуки(-ів))

3,1

@sanakashif906

A proposal has not yet been provided

$165 USD за 6 дні(-в)

5,0

(6 відгуки(-ів))

3,1

@bogdan2451629

Hello, I can do it.

$198 USD за 3 дні(-в)

5,0

(5 відгуки(-ів))

3,0

@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 за 1 день

5,0

(6 відгуки(-ів))

1,4

@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 controller used to display temperature sensed by RTD and also setup threshold setting to operate 3 output relays according to requirement.

$155 USD за 3 дні(-в)

0,0

(0 відгуки(-ів))

0,0

@Anakie

I save you your money. Find a different method: NO MATTER WHAT ANYONE SAYS - INDUCTION HEATING only works because it uses a constantly changing magnetic field to interact with a METALLIC object. Effectively it is nothing more than an AC powered electro-magnet. By changing the frequency and power you simply melt the core of the electro-magnet. You are blowing your sensor electronics because the wires in the RTD are simply acting like an antenna and feeding the AC power signal straight into the electronics. This is actually very dangerous because if you form a ground loop you risk either producing a very high current or a very high voltage. Its the same reason you have to be very careful mounting Toroidal inductors and transformers. Before you hurt yourself talk to a proper engineer

$35 USD за 3 дні(-в)