3B Scientific Absolute Pressure Sensor, 2500 hPa - Manual (Page 2)

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Subject to technical amendments
© Copyright 2008 3B Scientific GmbH
6. Sample experiment
6.1 Measuring the absolute pressure in relation
to the volume (Boyle’s law)
Apparatus required:
1 3B NETlog TM interface U11300
1 Absolute pressure sensor U11320
• Set-up the experiment according to Fig. 1.
• Fit the plastic syringe with an approx. 2-cm
long hose.
• Fill the syringe with 20 ml of ordinary air.
• Push the free end of the silicone tube onto the
nozzle of the pressure sensor.
• CAUTION: as far as possible, do not alter the
volume in the syringe!
• Connect the absolute pressure sensor to the
3B NETlog TM interface and wait for the interface
to recognise the sensor.
• The first reading appears on the interface dis-
play.
• In the 3B NETlab TM software’s manual mode,
enter the readings for the volume by hand in
steps of 1 ml at a time.
• Plot the graph of the characteristic.
Fig. 1: Measuring the absolute pressure in relation to the volume
Fig. 2: Pressure against volume