Find Jobs
Hire Freelancers

Impedance Spectroscopy-4Terminals- AD5934

$250-750 USD

Kansellert
Lagt ut over 7 år siden

$250-750 USD

Betalt ved levering
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.
Prosjekt-ID: 12190633

Om prosjektet

12 forslag
Eksternt prosjekt
Aktiv 7 år siden

Ønsker du å tjene penger?

Fordeler med budgivning på Freelancer

Angi budsjettet og tidsrammen
Få betalt for arbeidet ditt
Skisser forslaget ditt
Det er gratis å registrere seg og by på jobber
12 frilansere byr i gjennomsnitt $902 USD for denne jobben
Brukeravatar
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 om 10 dager
4,8 (274 omtaler)
8,1
8,1
Brukeravatar
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 om 30 dager
5,0 (11 omtaler)
7,1
7,1
Brukeravatar
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 om 10 dager
5,0 (11 omtaler)
5,3
5,3
Brukeravatar
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 om 15 dager
5,0 (10 omtaler)
3,7
3,7
Brukeravatar
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 om 20 dager
5,0 (1 omtale)
3,1
3,1
Brukeravatar
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 om 20 dager
4,1 (3 omtaler)
3,5
3,5
Brukeravatar
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 om 15 dager
5,0 (4 omtaler)
3,1
3,1
Brukeravatar
A proposal has not yet been provided
$666 USD om 10 dager
0,0 (0 omtaler)
0,0
0,0

Om klienten

GERMANYs flagg
München, Germany
5,0
1
Betalingsmetode bekreftet
Medlem siden nov. 4, 2016

Klientbekreftelse

Takk! Vi har sendt deg en lenke for at du skal kunne kreve din gratis kreditt.
Noe gikk galt. Vær så snill, prøv på nytt.
Registrerte brukere Publiserte jobber
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Forhåndsvisning innlasting
Tillatelse gitt for geolokalisering.
Påloggingsøkten din er utløpt og du har blitt logget ut. Logg på igjen.