BE 2350 Chapter : Solutions To Homework 7
Document Summary
Problem 1: the u-tube manometer below contains two liquids. Liquid a has a specific gravity of 0. 92 and liquid b = 2. 1. Calculate the deflection, h, when the applied pressure difference is p1 p2 = 960 pa. Assume the density of water is 1000 kg/m3. ( ) = 0. 083m or 8. 3 cm. 15. 1 explain the difference among absolute, gauge, and differential pressure. 15. 6 explain what a diaphragm pressure sensor is. A diaphragm sensor has a flexible, elastic membrane which separates 2 chambers (differential uses both chambers, 1 pressure uses a chamber and a closed reference chamber). The displacement of the diaphragm is measured in relation to the pressure change. Materials: plastic, metal alloy, stainless steel, or ceramic. Diaphragm is a silicon sheet with resistors diffused during manufacturing. Advantages: omits risk on bond breaking as with strain gages. 15. 13 describe the 3 types of manometers available. Three forms of manometer: (a) u tube, (b) well type, and (c) inclined type. (edited)
