Flow and volume measurement

Volume

• Spirometry
  * Wet
  * Dry
• Gas meters
• Drager volumeter
• Wrights respirometer

Flow

Fixed orifice

• Pneumotachograph
• Venturi tube flowmeter
• Pitot tube flowmeter
  * not spelt "pilot" [See DK5: p30]

Variable orifice

• Peak flowmeter

Others

• Hot wire flowmeter
• Ultrasonic flowmeter