3B SCIENTIFIC 1000568 Fiche d'instruction

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3B SCIENTIFIC
1000568 / U11371
Instruction sheet
04/12 Hh
1. Description
Displacement sensor inside a 3B NETlog
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
TM
by the 3B NETlog
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
displacement sensor to one of the analog inputs,
A or B, on the 3B NETlog
®
PHYSICS
Displacement Sensor
TM
sensor box
TM
unit and connect the
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:
Max. displacement:
Resolution:
Sensor:
Max. angle of rotation
for sensor pulley:
Resistance range:
Max. permitted speed of
rotation for long-term use:
Max. permitted torque
at end limits
1
22 mm
61 mm
0.3 mm
Precision potenti-
ometer using a wire
320°
10 kΩ/44 mm
1 turn/second
100 Ncm