3B Scientific Displacement Sensor - Manual

3B SCIENTIFIC ® PHYSICS
1
Displacement Sensor
1000568 / U11371
Instruction sheet
04/12 Hh
1. Description
Displacement sensor inside a 3B NETlog TM sensor box
and featuring a built-in precision potentiometer plus
a rotating pulley onto which a string can be wound in
order to measure displacement. Suitable for recording
periodic and oscillatory movements which can be
traced by the turning of the string on the pulley with-
out putting too much strain on the precision potenti-
ometer when it reaches the limits of rotation.
The displacement sensor is detected automatically
by the 3B NETlog
TM unit.
2. Operation
• Set up the experiment with the displacement
sensor included.
• If possible, select a zero point in such a way that
the limits of rotation of the pulley are never
reached.
• Turn on the 3B NETlog TM unit and connect the
displacement sensor to one of the analog inputs,
A or B, on the 3B NETlog
TM unit.
• Wait for the unit to automatically detect the
sensor (it will then display "S / U", meaning "dis-
placement per volt").
3. Technical data
Internal diameter
of pulley:
22 mm
Max. displacement: 61 mm
Resolution: 0.3 mm
Sensor: Precision potenti-
ometer using a wire
Max. angle of rotation
for sensor pulley:
320°
Resistance range: 10 k Ω/44 mm
Max. permitted speed of
rotation for long-term use:
1 turn/second
Max. permitted torque
at end limits
100 Ncm