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The Need

The Need. Measure the pressure 1- conversion of pressure into an electrical signal 2- Find the resistance in the wire 3-Find the stress from the strain gauge 4-By the stress and the resistance we can measure the pressure. Measure The pressure by using Strain Gauge.. Hoop stress.

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The Need

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  1. The Need Measure the pressure 1- conversion of pressure into an electrical signal 2- Find the resistance in the wire 3-Find the stress from the strain gauge 4-By the stress and the resistance we can measure the pressure Measure The pressure by using Strain Gauge.. Hoop stress

  2. Design Concept the conversion of pressure into an electrical signal is achieved by the physical Deformation of Strain Gages which are bonded into diagram of the pressure transducer and wired into a Wheatstone bridge configuration Pressure applied to the pressure transducer produces a deflection of Diaphragm which introduces Strain to the gages the strain will produce an electrical resistance change proportional to the pressure Strain-Gage Pressure Transducer is used for both static and dynamic ( Fluctuating) pressure Measurement

  3. Calculations Quarter-Bridge Circuit Half-Bridge Circuit Full-Bridge Circuit

  4. Dimensions (Blueprint)

  5. Materials (and Components)

  6. Manufacturing (and Assembly)

  7. Cost Estimate Strain gauge YBB-350-4HA-B Features: It use Phenol resins as a backing material. They are employed with glass fibre reinforcement in a  lamination process. YBB series strain gauge has good heat resistance, low creep tendency,  low thermal hysteresis , long-term stability and other characteristics, Ideal for load cell applications

  8. Time Schedule

  9. Pharos University in Alexandria Faculty of Engineering Engineering Perspectives Laboratory Freshman Design Project: Project Title: ________________ Section ____ Fall 2012/13

  10. Methods of Testing and Evaluation Trying to connect a voltmeter in a circle with the strain gauge and some resistance in addition ( to a battery ( making a simple and cheap circle to find the pressure using another method And our try was successful .. We can measure the pressure

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