Find Jobs
Hire Freelancers

Impedance Spectroscopy-4Terminals- AD5934

$250-750 USD

Cancelled
Posted over 7 years ago

$250-750 USD

Paid on delivery
I need a freelancer, to design me a Board for 4 Terminal measurements of impedance with AD5934. A concept for 2-terminal System does already exist. Also got some theories for 4 Terminal method.
Project ID: 12190633

About the project

12 proposals
Remote project
Active 7 yrs ago

Looking to make some money?

Benefits of bidding on Freelancer

Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
12 freelancers are bidding on average $902 USD for this job
User Avatar
HI sir I am an expert electronics engineer with more than 8 years of experience I would like to discuss more I am sure I can get you best results. Waiting for your reply to start Regards
$700 USD in 10 days
4.8 (274 reviews)
8.1
8.1
User Avatar
Greetings, Quite interesting project. Looks like you need a working PCB design which will have AD5934 along with a uC to control this Impedance analyzer IC. You also would need some kind of interface to communicate the data over to your PC/Mobile or store it in a SD card to do something useful out of it. I have good expertise with Analog Circuits, uC, USB/Serial/BLE interfaces, PCB design, Embedded systems. Please see my profile for details. I think I can deliver this end to end to you. However it would be good if we can discuss the details of the 4 terminal spectroscopy and how would you like the interfacing to be done. Look forward to hear from you. T & R Alok Pugalia
$2,000 USD in 30 days
5.0 (11 reviews)
7.1
7.1
User Avatar
Hello Sir, I am electronic engineer and have experience in embedded system design. I would like to work with you on this project. Kindly share details
$500 USD in 10 days
5.0 (11 reviews)
5.3
5.3
User Avatar
hi, I have a design experience in rf. I have worked on DDs type devices. I can send the pic of rf projects I have worked.
$555 USD in 15 days
5.0 (10 reviews)
3.7
3.7
User Avatar
Hello, We have accomplished 90% of the project which is similar of your requirement. All we need 10% customization as per your requirement set and specifications. I want to discuss in personal chat in order to explore your needs, which will yield a clear picture of implementation phase. Prior undertaking project, I want to show demo of the work done previously. Apart from demo, I will be sharing following documentation which will turn your project into Quality and Successful delivery: - Technical Project Proposal - Designs - Flow chart for this Project - Execution plan
$773 USD in 20 days
5.0 (1 review)
3.1
3.1
User Avatar
Hello my Name Is Carlos. I am an electrical engineer, I belong to the mentioned electronic and communications. I understand from your project that you want to have a device similar to a VNA but that it measures impedance at a lower frequency. I imagine that you expect as output an impedance matrix Z. The work plan that I visualize is to use some AD5934 or Use one with a multiplexer. Your project looks interesting, I have the knowledge, the tools and the time to do your project. At the moment I am developing like professional in the design of products or electronic devices, along with a group of colleagues engineers. If you are interested, you can write to me with confidence.
$750 USD in 20 days
4.1 (3 reviews)
3.5
3.5
User Avatar
Hello, I can do this work for you. Please, send me more information. AD5934 is designed to measure impedance 1 kilohms to 10 megohms, from 100 ohms to 1 kilohms with additional circuit. Under these resistances four-wire connection method does not gain in precision. If you want to measure small resistance need another chip. I develop concepts, design circuit, PCB and software for devices on Microchip and Atmel microcontrollers (C, C++, Arduino). You can see some my works in my portfolio. Regards, Alexey
$500 USD in 15 days
5.0 (4 reviews)
3.1
3.1
User Avatar
A proposal has not yet been provided
$666 USD in 10 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of GERMANY
München, Germany
5.0
1
Payment method verified
Member since Nov 4, 2016

Client Verification

Thanks! We’ve emailed you a link to claim your free credit.
Something went wrong while sending your email. Please try again.
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Loading preview
Permission granted for Geolocation.
Your login session has expired and you have been logged out. Please log in again.