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:

Ab Initio Consultant

Job Title: Ab Initio Consultant (Multiple Positions) Location: NJ/FL/TX Duration: Full-time Job Requirements: "

  • Fixed Price Project
  • Max $100
  • 3 years, 1 month left

Full Time Permanent Position - SEO,Blog Post Writer/Internet Marketing/Social Networking

No agencies! I want one full-time employee for long-term from the Philippines only. I have three wordpress websites that I need a full-time employee to do all of my online marketing and content creation. The three websites are www.KarinaHarris.com, www.KarinaSecrets.com, www.CueMe...

  • Fixed Price Project
  • Max $275
  • 3 years, 2 months left

App Builders Required

Hi, we are an app design and build company. We are currently recruiting sales people in the UK. We use the Bizness Apps platform so are only looking for designers who are expert with this platform. We anticipate a high volume of work. Applicants must be able to show examples of their work. Thank yo

Skills Required: design adobe-photoshop
  • Fixed Price Project
  • Max $50
  • 1 year, 7 months left

Logo Design, Business Card, And 4-5 Static Website Design

Creating a new website. Could be straight HTML, with CSS and maybe some JQuery for effects. Will need 4 or 5 logo designs and business card designs. All custom design, no templating. The website design should be simple and easy. It will have minimal content...

  • Fixed Price Project
  • Max $25
  • 3 years, 5 months left

Ad / Coupon Designers

Coupon Magazine Company looking for Ad / Coupon Designers. We need 10 professional designers to design 20 to 50 ads / coupons a month, we will pay $5.00 Per add designed.

  • Fixed Price Project
  • Max $1000
  • 3 weeks, 3 days left

Approve Wordpress Fully Cutomized Theme In Themeforest.net

Hello Friends, I want to approve my wordpress theme in themeforest.net urgent basis. This theme is fully cutomized with all new features like layout, colors, font effects, slides etc. i have more theme for approval so cantact me urgent. Ravi Chauhan

Skills Required: php web-design wordpress
  • Fixed Price Project
  • Max $100
  • 3 years, 7 months left

Looking For STRONG Web Designer

I'm looking for someone very creative who can think outside of the box and finish assignments quickly. I need someone who can work quickly and create PSD designs like: http://themeforest...

  • Fixed Price Project
  • Max $100
  • 3 years, 8 months left

Develop A Location-Based Skills Website

This website is designed to link skilled people with clients who need small tasks to be completed in their local area. Vendors create skill profiles, and clients search for them using skills and geographic location as the main criteria...

  • Fixed Price Project
  • Max $7000
  • 3 years, 10 months left

Looking For Landing Page And Sales Page For E CIG Business.

Hello. We are a growing company and we need the best landing and sales page ever seen before. We are an electronic cigarette business with tons of growth opportunities. Please forward examples of landing pages and sales pages you have completed in the past. If you have the skills we are look

  • Fixed Price Project
  • Max $100
  • 3 years, 10 months left

Jobs Online

We provide the following benefits to all our webcam models: - Earn from $0.80/minute up to 70% of your gross earnings paid weekly with no minimums. - 70% lifetime revenue share paid weekly for recording or uploading videos for sale...

  • Fixed Price Project
  • Max $5
  • 3 years, 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