Pressure Measuring Devices

Learning Objectives

• Describe the difference between absolute, gauge, vacuum, and differential pressure
• Describe and explain the operation of liquid column manometers, including the following types:
  • U-tube
  • Well
  • Inclined tube
• Describe and explain the operation of elastic pressure sensors, including the following types:
  • Bourdon tube
  • Bellows
  • Diaphragm
• Explain in detail the construction and operation of a Bourdon tube pressure gauge
• Describe the purpose of a pressure switch, pressure transducer, and a d/p cell