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FORCE SENSOR

Manufacturer: Pasco
Model: CI-6746
Cost: $200 (2000)

Description

The PASCO CI-6746 Economy Force Sensor is designed to be used with a PASCO ScienceWorkshop Computer Interface. The sensor has strain gauges mounted on a specially designed "S-bend beam". The beam has built-in over-limit protection so it will not be damaged if a force greater than 50 newtons is applied.

Specifications

Output voltage	+ 8V for + 50 newtons (pushing) - 8V for - 50 newtons (pulling)
Output noise	± 2 millivolts
Force slew rate	30 newtons / millisecond
Bandwidth limit	2 KHz (internal low pass filter)
Output drive	12 metres of cable without instability
Beam deflection	0.28 mm

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Operating Instructions

Connecting and Zeroing the Sensor

1. Connect the 8-pin DIN plug to an analog channel on the computer interface.

2. To "zero" the sensor, press and then release the tare button. When the tare button is pressed, the voltage from the sensor will be set to approximately zero volts.

Note: You can also zero the sensor while a force is applied to the sensor. For example, if you want to measure the change in force during an experiment, set up the experimental equipment as needed, and tare the sensor at the beginning of the experiment before taking data. The sensor can maintain its "zeroed" condition for more than thirty minutes.

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keywords: force sensor, newton measuring device.

Document created August 10, 2001. Original author: Phil Scolieri