PASCO CI-6538 Rotary Motion Sensor - Manual (Page 8)

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Model No. CI-6538 Rotary Motion Sensor
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Introduction
The PASCO CI-6538 Rotary Motion Sensor is a bidirectional position
sensor designed for use with the PASCO ScienceWorkshop™ 750
Interface. It contains an optical encoder which gives a maximum of
1440 counts per revolution (360 degrees) of the Rotary Motion Sensor
shaft. The resolution can be set in the ScienceWorkshop software to
360 or 1440 times per revolution (1 degree or 1/4 degree). The
direction of rotation is also sensed.
The Rotary Motion Sensor has two phone plugs which plug into any
two adjacent digital channels on the 750 interface box.
The rod clamp can be mounted on three sides of the sensor case,
allowing the Rotary Motion Sensor to be mounted on a rod stand in
many different orientations. The 3-step Pulley keys into the rotating
shaft and can be mounted on either end of the shaft. A rubber o-ring is
intended to be slipped over the largest pulley step so the RMS can be
pressed against a surface to sense the relative motion between the
sensor and the surface. The end of the Rotary Motion Sensor where
the cord exits the case provides a platform for mounting a clamp-on
Super Pulley. The t-slot in either side of the RMS is for inserting the
optional Linear Motion Accessory rack. This allows you to measure
linear motion over the length of the rack.
thumbscrew
rod clamp
3-step Pulley
rotating shaft
platform
case
phone plugs
o-ring
additional
mounting position
for rod clamp
t-slot
Figure 1: Rotary Motion Sensor Parts