Load Cell Design With Strain Gauge

I wish to have a design for a load cell using a strain gauge. Alternatively, if you can identify a commercially available product that satisfies the following requirements, I will pay the contracted payment amount for such an identification. It is not required that you build the load cell.

The overall configuration that is envisioned is a strain gauge mounted to a strip of aluminum (load element) with the following dimensions. The attached drawing shows an aluminum load element and a circuit board that measures a maximum of 20 mm x 20 mm. The circuit board will be positioned approximate 50 mm away from the load element.
Between 15 and 17 mm long (mean 16 mm)
Between 6 and 7 mm wide (mean 6.5 mm)
Between 1.4 and 1.6 mm thick (mean 1.5 mm)
The area available for the attachment of a strain gauge measures 5.5 mm x 13.0 mm.

The load cell will be used to measure stress on a rope.
The stress on the rope will range from 0 to 40 kg.
The supply voltage to the load cell will be 5.0 volts.
The output of the load cell should be a voltage that ranges from approximately 0 volts for no load to approximately 3.2 volts for full load.
The precision of the output voltage should be within +/- 5% of the stress at a fixed temperature.
Temperature compensation is not required.

Deliverables include:
Schematic of the circuit
Bill of materials for the circuit
It shall be possible to procure all materials from suppliers in the United States.
The recommended source for the strain gauge is http://www.omega.com/toc_asp/sectionSC.asp?section=E&book=pressure but other strain gauges will be considered.
Recommended sources for other components are www.digikey.com or www.mouser.com.

I am not experienced with load cell design, so feel free to ask questions if I have left anything out. Also feel free to make suggestions if the above description is found to be too limiting.

Search All Jobs:

Long Term Logo Designer Needed Pay Monthly Top Logo Designer Needed

Our company is looking for a creative person who can do the following for our graphic design firm. We are running a branding services online and we are getting about 20+ clients per day. We want someone who is good at Adobe Illustrator to help us fulfill our projects...

  • Fixed Price Project
  • Max $360
  • 6 months left

Make A Facebook Fanpage Website Fully Set Up For Monetizing Please Read The Instructions Or Your Message Will Be Deleted

Hello everyone. IF YOU DO NOT RESPOND IN THE RIGHT FORMAT YOUR MESSAGE WILL BE DELETED! NO SPAMMY COVER LETTERS...

  • Fixed Price Project
  • Max $300
  • 3 months left

Website Designers ** New To ODesk Welcome**

Are you wanting to start or expand your business on oDesk? Are you a talented Website Designer? We are looking for Website Designers to design websites for a specific niche clientele. You may be new to oDesk but you must be an experienced Website Designer or Developer...

Skills Required: graphic-design web-design
  • Fixed Price Project
  • Max $25
  • 1 month left
  • Fixed Price Project
  • Max $10000
  • 1 month left

Interior Design Procurement Specialist

Seeking an interior design procurement specialist - skilled at understanding the interior design fulfillment process - basically procurement and fulfillment - including ordering all the materials, furniture, etc...

  • Fixed Price Project
  • Max $5000
  • 1 month left

Publisher PDF Newsletter Publishing And Design

Our Association is looking for a company or person with depth to take our content and photos and utilize their skills to use MS Publisher to produce a monthly NL for us. The size and scope of the NL is 20-35 pages...

  • Fixed Price Project
  • Max $50
  • 1 month, 3 weeks left

Psychic Medium Website

I am looking for a one-three page website on Psychic website. First page must be visually impressive, and explain about me and the services I offer in cold case murders, communicating with other side. Second page more information how I work with link to schedule appt. Third page if needed...

Skills Required: web-design
  • Fixed Price Project
  • Max $100
  • 6 months left

Web "Jack Of All Trades" Needed

Clothing company in need of skilled individual who can handle Square Space for website, Big Cartel for products, Word Press for blogs, all web design changes, and all back end technical requests that arise...

  • Fixed Price Project
  • Max $300
  • 2 years left

Web Landing Page HTML + Banner

Estimated duration: not set Description: We are looking for a designer who can create and design HTML web landing page + either gif or flash banner...

Skills Required: banner-design html web-design
  • Fixed Price Project
  • Max $300
  • 2 months, 4 weeks left

Ayris Beauty Machine Or The Ayris Earth Restoration Machine

THE AYRIS PROJECT, THE CULTURAL AND ECOLOGIC RESTORATION MACHINE. THE AYRIS MACHINE...

  • Fixed Price Project
  • Max $6000
  • 2 months left

Job Details

  • Job Type
  • Fixed Price Job
  • Budget
  • Max $50
  • Start Date
  • 01/30/2012 10:56:43 PM
  • Job Status
  • Job Expired