PASCO CI-6537 User Manual
Instruction Manual
Manual No. 012-05804C
Force Sensor
Model No. CI-6537
FORCE
SENSOR
CAUTION!
-50N
+50N
Force Sensor Model No. CI-6537
Table of Contents
Equipment List........................................................... 3
Introduction ............................................................. 4
Equipment Setup ..................................................... 5-6
Mounting the Force Sensor on a PASCO Dynamics Cart .............................................................5
Mounting the Force Sensor on a Support Rod...............................................................................5
Mounting the Force Sensor on the IDS Force Sensor Bracket ......................................................6
Taring the Force Sensor ............................................... 6
Calibration (Optional) ................................................... 6
Using the Force Sensor with PASCO Interfaces ..................... 7
Suggested Experiments ................................................. 8
Component of Force on an Incline Plane.......................................................................................8
Newton’s Second Law: Pushing and Pulling a Cart ......................................................................8
Newton’s Second Law: Constant Force.........................................................................................9
Work Energy Theorem...................................................................................................................9
Tension.........................................................................................................................................10
Newton’s Second Law: Friction ..................................................................................................10
Newton’s Third Law ....................................................................................................................11
Newton’s Third Law: Impulse/Collision .....................................................................................11
Other Suggested Experiments......................................................................................................12
Appendix A: Specifications............................................ 13
Appendix B: Calibration with DataStudio® Software............ 14-15
Appendix C: Calibration with
ScienceWorkshop®
Software ......... 16
Appendix D: Technical Support ....................................... 17
Appendix E: Copyright and Warranty ................................ 18
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Model No. CI-6537 Force Sensor
Force Sensor
Model No. CI-6537
Equipment List
1
CAU
TIO
N!
-50N
+5
0N
FORCE
SENSOR
3
2
Included Equipment Replacement
Model Number*
1. Force Sensor (1)
2. Hook and bumper (2)
CI-6537
003-05798
3. Ziplock bag (1)
*Use Replacement Model Numbers to expedite replacement orders.
NA= not sold separately from PASCO
NA
Additional Equipment Recommended
A PASCO ScienceWorkshop® 500 or 750 interface
A computer
Introductory Dynamics System (cart, track, track accessories)
Force Sensor Bracket and Collision Bumpers
Phillips head screwdriver (size #0) for mounting the Force Sensor on a
PASCO Dynamics Cart (included with the Force Sensor bracket)
DataStudio® software
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CI-6400 or CI-6450
or CI-7599
NA
ME-9429A or ME-9452
CI-6545
NA
CI-6870C
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Force Sensor Model No. CI-6537
Introduction
The CI-6537 ± 50 newton Force Sensor is designed to be used with a
PASCO Computer interface [ScienceWorkshop 500 or 750]. This
version of the Force Sensor has an output between -8 volts and +8
volts and a range between -50 newtons and +50 newtons. In other
words, it produces -8 volts for -50 newtons, 0 volts for “zero” force,
and +8 volts for +50 newtons. (A push is considered to be positive, and
a pull is considered to be negative.) The sensor has strain gauges
mounted on a specially designed “binocular beam.” The beam deflects
less than 1 millimeter, and has built-in over-limit protection so it will
not be damaged if a force greater than 50 newtons is applied.
50 N
CAUTION!
50 Newtons.
(Push or Pull)
Do Not Exceed
+ 50 N
(Button on side)
Push To Tare
CI-6537
FORCE
SENSOR
Output: ± 8V for ± 50 N
Use No.0 Phillips head
PASCO Dynamics Cart
screw driver to attach to
Thumbscrew
Hole for
support rod
Tare button
Detachable
hook
Threaded hole
mounting screw
R
A
E
T
To
interface
Figure 1: Force Sensor Components
The Force Sensor consists of the housing for the beam and electronics,
a cable with a 8-pin DIN plug for connecting to the computer interface,
and a detachable hook. The housing has a Tare button (for zeroing the
sensor) on the same side of the housing as the cable and a thumbscrew
(for mounting on a support rod up to 1/2” diameter) on the end
opposite to the detachable hook.
The bottom of the housing fits into the accessory tray of a PASCO
Dynamics Cart. The top of the housing has the same dimensions as the
Dynamics Cart accessory tray, and includes notches at each end for
mounting the IDS “picket fence.” The top of the housing has two
threaded holes (M5 metric threads). You can mount any accessory that
fits on top of the Dynamics Cart into the tray on top of the Force
Sensor. For more information, see the PASCO catalog.
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Model No. CI-6537 Force Sensor
Equipment Setup
Mounting the Force Sensor on a PASCO Dynamics Cart
The Force Sensor has two built-in mounting screws that align with the
threaded holes in the accessory tray of a PASCO Dynamics Cart (such
as the ME-9430 Plunger Cart or ME-9454 Collision Cart). The screws
are spring loaded so they remain in a retracted position when not in
use.
1. Position the sensor lengthwise it in the accessory tray of the Dynamics
Cart.
2. Insert a size #0 Phillips head screwdriver into the threaded hole in
the accessory tray of the Force Sensor, and align the screwdriver
with the Phillips head screw.
R
A
E
T
Figure 2: Mounting the sensor on the Dynamics Cart
3. Press down with the screwdriver until the screw extends into the
threaded hole on the dynamics car or cart.
4. Turn the screwdriver clockwise until the screw is tight. Repeat the
process with the other screw.
To mount other accessories (e.g. ME-9481 Bernoulli Cart Accessory)
on top of the Force Sensor, attach the accessory in the Force Sensor
accessory tray in the same way you would attach the accessory to a
Dynamics Cart.
Mounting the Force Sensor on a Support Rod
The Force Sensor has a hole and thumbscrew at one end that allows
you to mount the sensor on a support rod from 3/8” to 1/2” diameter.
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Force Sensor Model No. CI-6537
Mounting the Force Sensor on the IDS Force Sensor Bracket
The Force Sensor can be mounted on the CI-6545 Force Sensor
Bracket.
1. Place the bracket on top of the sensor so the thumbscrews align with
the threaded holes in the top of the sensor accessory tray.
2. Turn each thumbscrew clockwise until it is tight.
3. Mount the Force Sensor Bracket on the T-slot on the side of the IDS
Track.
For more information, see the Force Sensor Bracket instruction sheet.
Taring the Force Sensor
To tare (zero) the sensor, press the Ta re button on the side of the
sensor and then release it.
When the Tare button is pressed, the voltage from the sensor will be set
to approximately zero volts. You can also tare 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 over thirty minutes.
You can verify the tare procedure by monitoring the force using
DataStudio.
Calibration (Optional)
Calibrating the Force Sensor is not required; the CI-6537 Force Sensor
is factory calibrated. However, you must tare the Force Sensor before
taking measurements. Always zero (tare) the Force Sensor in the
exact orientation in which it will be used.
The sensor is designed to produce approximately zero volts when it is
“zeroed.” A change in force of one newton causes a change in output
voltage of 160 millivolts (0.160 V). Therefore, the sensor does not
need to be calibrated. Instead, the voltage can be converted directly
into force. For example, after the sensor is “zeroed,” an output voltage
of 0.160 volts equals a force of one newton, a voltage of 1.60 volts
equals a force of 10 newtons, and so on. In the same way, a voltage of
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