Sensitivity
Sensitivity of an analog channel
Description
When working with the session-based interface, the Sensitivity
property
to set the accelerometer or microphone sensor channel.
Sensitivity in an accelerometer channel is expressed as volts per g-force, V/g.
Sensitivity in a microphone channel is expressed as volts per pascal, V/Pa.
Examples
Create a session object, add an analog input channel, with the 'accelerometer'
MeasurementType
.
s = daq.createSession('ni'); s.addAnalogInputChannel('Dev4', 'ai0', 'accelerometer')
Data acquisition session using National Instruments hardware: Will run for 1 second (2000 scans) at 2000 scans/second. Number of channels: 1 index Type Device Channel MeasurementType Range Name ----- ---- ------ ------- -------------------------- ------------------ ---- 1 ai Dev4 ai0 Accelerometer (PseudoDiff) -5.0 to +5.0 Volts
Change the Sensitivity
to 10.2e-3 V/G:
ch1 = s.Channels(1) ch1.Sensitivity = 10.2e-3
s = Data acquisition session using National Instruments hardware: Will run for 1 second (2000 scans) at 2000 scans/second. Number of channels: 1 index Type Device Channel MeasurementType Range Name ----- ---- ------ ------- -------------------------- ---------------------- ---- 1 ai Dev4 ai0 Accelerometer (PseudoDiff) -490 to +490 Gravities