The Development Of Pressure Sensor For Piping System

Mohd Salim, Norazraie (2015) The Development Of Pressure Sensor For Piping System. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The purpose of this project is to design and run a finite element analysis (FEA) of pressure sensor which is using diaphragm element. Pressure sensor with diaphragm element is a mechanical type of sensor. This project will overcome the high cost to manufacture the pressure sensor by using lower cost of material but still can give the better result as a pressure sensor. Complexity of design in pressure sensor also adds the process to manufacture it where advance machining or advance engineering processes are need. So, to overcome the process of producing the pressure sensor, the conventional technology in process of production is considered compare of high production technology. The objectives of this project are to design pressure sensor using diaphragm system and aluminium material and run the finite element analysis of pressure sensor. The CAD modeling is drawn using CAD software (CATIA). Then the design has to run the finite element analysis (FEA) using CAE software (HYPERWORK). The finite element analysis conduct for this project is only for mechanical properties of the material for diaphragm pressure sensor. The mechanical properties analyze are strength of the material for deflection, strain based on the deflection and the stress produce from the pressure sensor design. Conclusions are made for diaphragm pressure sensor where small area of diaphragm is applied with high pressure to produced maximum value of stress and displacement. Design using aluminium material with different thickness of diaphragm showed the different characteristic of material where the sensitivity are changes from thickness of 1mm to 4mm. Due to this situation, the less thickness of diaphragm has the high sensitivity toward the low pressure compare with the thick diaphragm, where thick diaphragm is more suitable with the high pressure.

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