Appendix B: Technical Support ....................................... 13
Photogate Tape Set
Appendix C: Copyright and Warranty Information .................. 13
2
®
Model No. ME-6664Photogate Tape Set
Photogate Tape Set
Model No. ME-6664
Equipment List
1
Included EquipmentReplacement
1. Photogate Tape (30 meter roll) (1)
2. Photogate Tape Bracket (2)
3. V elcro® hook, 1/2” diameter (4) (not shown)
4. V elcro® loop, 5/8” width, 0.5 ft. (4) (not shown)
5. Double-Adhesive Tape, 0.75” x 0.75” (8) (not shown)
2
Model Number*
648-08623
648-08458
616-075
616-153
720-053
*Use Replacement Mo del N um be rs to e xpe di te replacement orders.
Additional Equipment RequiredReplacement
Model Number*
ScienceWorkshop
®
or PASPORT™ interface**
Various
(See PASCO catalog)
Photogate Head or Accessory Photogate
A computer
**PASPORT interfaces also require a PASPORT Photogate Port (PS-2123A).
ScienceWorkshop®
Velcro is a registered trademark of Velcro Industries B.V.
®
interfaces do not require a Photogate Port.
ME-9498A or ME-9204B
NA
3
Photogate Tape SetModel No. ME-6664
Introduction
The ME-6664 Photogate Tape Set is designed for use with a PASCO
photogate. The Photogate Tape is made of a flex ible Mylar material,
can be cut to any length, and is reusable. The tape is 30 m long with 5
cm band spacing (edge-to-edge). When the tape is threaded through
the bracket of a photogate connected to DataStudio, the student can
measure position, vel ocity, and a cc el e rat ion with a high degree of
accuracy. A high-resolut ion 1 cm tape is also available to orde r (part
no. ME-6666).
The Photogate Tape operates on the same concept as PASCO’s Picket
Fence, which is also used with PASCO ph otogates. The advantage of
the Photogate Tape over the Picket Fence is that the Photogate Tape is
flexible enough to be inserted into a photogate and allows for a greater
quantity of position, velocity, and acceleration measureme nts in a
given period.
Typical Applications
• Measure the launch speed and acceleration of an air rocket
• Measure t he ac ce lera ti on d ue to fre e fal l or the t er mina l vel oc ity o f an
object in free fa ll
• Investig ate the relationship bet w een the motion of the arm and the
speed of a thrown ball
• Measure the speed of a kicked ball
• Connect the tape to a sprinter to measure the speed as the sprinter
accelerates “out of the starting block.”
Data Recording with the Photogate Tape
When photogat e tape is threaded through a PASCO photogate
attache d to a comp uter interf ace, the phot og ate records da ta in 5 cm
(.05 meter) increments from the black and white paired bands on the
Photogate Tape. As the tape moves through the Phot ogate Tape
Bracket, the infrared beam in the photogate detects the band po sition
on the tape.
Note: The Photogate
Tape is reusable without
creases. However, if the
tape deve lops a cr e ase, it
is no longer usabl e. To
pre vent cr easing, roll the
tape when not i n use .
4
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Model No. ME-6664Photogate Tape Set
∆
∆
A velocity reading is taken from leading edge-to-leading edge on a
sectio n of the tape (Figure 1a) .
band 1
leading
edge
Figure 1a: Bands on Photogate Tape
leading
edge
band 2
leading
edge
band 3
leading
edge
One velocity reading is recorded for every 5 cm (.050 meters) band
(black and white pair) of tape that moves through the photogate beam.
The velocity is calculated from the distance/ time or 0.050 m/
∆
time of each band. The numb er of da ta poi n ts equals the total numb er
of 5 cm bands (minus 1) tha t trave l t hrough the beam of the photogat e.
For example, if the tape moves 5 meters through the photogate bracket,
this equates to 50 bands, and you could expect ap proximately 100 [or
100-1= 99] indivi dua l ve lo ci ty readings or data points on a graph.
However, if the Photogate beam is posi tioned over the middle of the
black section at the start of the timing, the photoga te be am skips that
section and begins the timi ng at the fir s t l eading edge of the next
consecutive bl a ck se ct ion.
In the example below (Figure 1b), one velocity data point is taken (V
, V3, V4, etc.) for each band on the tape, giving a total of 4 points/20
V
2
1
cm. These da ta points can be viewed or averaged in a D ataStudio
display.
,
V
1
5 cm
Figure 1b: Strip of Photogate Tape
®
V
2
10 cm
V
3
15 cm
V
4
20 cm
5
Photogate Tape SetModel No. ME-6664
Equipment Setup
1. Mount a Photog ate Head (ME-9498A) to the experimental
apparatus used in yo ur experiment.
Note: When using a pho-
2. Slide the Photogate Tape
Bracket over one of the arms
of a Photogate.
3. Cut a piece of photoga te
tape to the appr opriate
length for your experiment.
Note: Be sure t o cut enou gh
tape for t he distance you
want to measure. If the tape
runs out early, critical data
from the latter portion of the
experiment may be lost .
Figure 2a: Threading the
Photogate Tape through the
Photogate Bracket
togate for timing, yo u do
not need to set the sample
rate in Xplorer . For
instructi ons on using a
P AS PORT Xplor er, see the
Xplorer Us er’s Guide.
4. Thread the Photogate Tape through the Photogate Tape Bracket
(Figure 2a).
5. Fasten the Velcro over
the Photog ate Ta pe
Bracket. The Velcro
helps to guide the tape
through the bracket and
keeps the tape ta ut
(Figure 2b).
6. Connect the Photogate to
either a PASPORT or
ScienceWorkshop
interface. (Note:
Figure 2b: Fastening the
Vel cro over the Photogate
PA S P O RT interf aces
requires a PASPO RT Photogate Port. For DataStudio Setup
instructions, see App end ix A of this ma nual.)
7. In DataStudi o, click the Start button to begin collecting dat a.
6
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Model No. ME-6664Photogate Tape Set
Experiment Applications
Using the Photogate Tape Set with the Air Rocket System
Equipment required: PASPORT Xplorer (PS-2000), Air Rocket
System (SE-8694), Phot ogate Head (ME-9498 A), Photogate Port (PS-
2123), Photogate Tape Set (ME-6664), safety goggl es recommended
1. Slide the Photogate Tape Bracket over the side arm of a Photogate
Head.
2. Use a piece o f double-stick tape
to mount a Ph otogate Head to
the side platform on the Air
Rocket Syst em. S ecure the
bracketed arm on the doublestick tape (Figure 3a).
3. Cut a one meter piece o f
Photogate T ape. Attach one end
piece of tape to the body of the
Air Rocket Sys tem.
4. Thread the other end of the
Photogate Tape through the
bracket on th e P h otogate Head
Figure 3a: Threading the
Tape through a Photogate
on a Air Rocket System
(Figure 3b).
5. Move the tape until the leading edge of a bl ac k section of the tape
aligns with the hole on the Photogate Tape Bracket. (Note: As the
tape moves through t he photogate, a velocity reading w ill be
recorded each time a 5 cm band moves through the beam.)
Note: For th is experiment, you sho ul d h ave
enough tape to re cord the
velocity of the rocket as it
is launche d.
6. Fasten the V elcro over the
Photogate Tape Bracket. The
Velcro helps to guide the
tape through the bracket and
keeps the tape taut (Figure
3b).
7. Plug a Photogate Port into a
PASPORT Xplorer. Attach
the black cable from the
Photogate Port to the
Photogat e H ead.
®
Figure 3b: Fastening the
Velcro over the Photogate
7
Photogate Tape SetModel No. ME-6664
CAUTION: Before pum ping the air chamb er, move at le as t
two feet away from th e Air Rocke t S ystem. Do not place y ou r
face or other body part over the rocket or launch pad. To avoid
possible bodily injury from the rocket, always wear safety goggles and
keep a distance of at least two feet away from the rocket.
8. Us e th e pump to pressur ize the air chamber .
9. Press the Start button on the Xplorer to begin timing.
10. To launch the Air Rocket System, push the red but t on on the rocket
Note: If the rocket does
not laun ch , i ncrease the
tightness of the pl ast ic tu bing. If t he tu bi ng is loose,
air will l e ak and reduce
the pressure avail abl e to
launch the rocket.
(Figure 4). After the rocket clears the launch pad, click the Stop
button.
11. (Option al): To retrie ve your Xplorer data into DataStudio, connect
an Xplore r cable to a USB port on your compu ter and run
DataStudio. At the soft w are prompt, click the Retrieve Now
button.
Figure 4: Launching a Rocket
Using the Photogate Tape with a Thrown Tennis Ball
Equipment required: PASPORT Xplorer (PS-2000), Rod stand,
Multi-Clamp (SE-9442), Stainless Steel Rod (SE-9451), Phot ogate
Head (ME-9498A), Photogate Port (PS-2123), Pho to gat e Tape Set
(ME-6664), tenni s ball( s)
1. Insert a four-foot (or longer) steel rod into a base stand.
2. Attach a Multi-Clamp about two inches from the top of the steel rod.
Slide another steel rod (either vertically or horizontally) through the
Multi-Clamp. Insert the rod through the photogate hook or thread
the rod through the side arm of the P hotogate Head.
8
®
Model No. ME-6664Photogate Tape Set
Note: Keep the Photogate
and rod stand in a shaded
area, aw ay from direct
sunlight. Direct sunlight
may interfere with the
photogate beam and cause
inaccurate measurements.
3. Slide the Phot og ate Tape
Bracket over a side arm
on the Photog ate Head.
Figure 5: Setup of Photogate
Head on a Rod Stand
4. Cut a five foot piec e of Pho togate Ta pe. Use tape to attach one end
of the Photogate Tape to the tennis ball.
5. Thread th e ot her end of the Photogate Tape through the bracket on
the Photogate Head (Fi gure 5). D o not tape or fasten the opposite
end of the Phot ogate Tape. This end should be free to travel
completely through the bracket.
Figure 6: Recording the Velocity of a Thrown
T ennis Ball with Photogate Tape
Note: For this experiment, you should have
enough tape to record the
velocity of the ball from
the start of the throw to
the r e lease. The point of
this study is not to plot t he
velocity of the en t ire
travel durat ion of the ba ll,
as this woul d probab ly
require several rolls of
tape!!!
6. Move the tape until the leading edge of a bl ac k section of the tape
aligns with the hole on the Photogate Tape Bracket. (Note: As the
tape moves through t he photogate, a velocity reading w ill be
recorded each time a 5 cm band moves through the beam.)
7. Plug a Photogate Port into a PASPORT Xplorer. Attach the black
cable from the Photogate Port to th e P h otogate Head. (To keep the
photogate cable out of the way of the tape, use a piece of string or
rope to fasten the cable to the rod.)
8. Ask one student to be the timer and another student to be the ball
thrower. (The timer will hold the Xplorer and watch the tape.)
9. Position the thrower beside the rod stand, standing parallel to the
direction of the Photogate Tape Bracket a nd tape travel (Figure 6).
®
9
Photogate Tape SetModel No. ME-6664
10. A few seconds before the student throws the ball, ask the timer to
click the Start button on the Xplorer.
11. Tell the throw er to throw a tennis ball. As the ball is thr own, the
Photogate Tape will move quickly through the Photogate Tape
Bracket. After the ba ll is released f ro m the throwe r’s hand or the
tape runs out, ask th e ti m er to click the Stop button.
12. (Optional): To retrieve your Xplorer data into a DataStudio display,
connect a n Xplorer cable to a USB port on yo ur computer and run
DataStud io. At the soft w are prompt, click the Retrieve Now
button.
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®
Model No. ME-6664Photogate Tape Set
Sample Data/Results
Launching a Rocket
Throwing a Tennis Ball
®
11
Photogate Tape SetModel No. ME-6664
Appendix A: DataStudio Setup Instructions
The instructio ns below outline the recom me nded experiment setup for PASPORT and
ScienceWorkshop sensors. Follow the steps specific for the type of sensor and interface
(i.e. PASPORT or ScienceWorkshop).
ProcedureSteps
PART I: Plug the
photogate into the
interface:
PART II: Set up your
experiment in
DataStudio
PASPORT:a) Plug the stereo plug on a Photogate Head into a
PASPORT Photogate Port. Plug the PASPORT Photogate Port to
a PASPORT interface. b) Connect the PASPORT interface (i.e.
USB Link, PowerLink, etc.) to a USB port on your USB-compatible
computer. When the PASPORTAL window opens, select “Launch
DataStudio.”
OR
ScienceWorkshop: a) Plug the Photogat e Head int o a
ScienceWorkshop
PASPORT: a) In the Experiment Setup window, click the Add
Timer button and select the Photogate and Picket Fence timing
option. Enter 0.050 m f or the band spacing (i f using the 5 cm tape).
If using the 1 cm tape, enter 0.010 m for the band spacing. Click
OK.
(For pre-configured timing sequences, see “Using Photogates and
Timers” in the table of contents of the DataStu dio onl ine help.)
OR
ScienceWorkshop:
double click “Create Experiment.” b) In the Sensors list, click and
drag the Photogate with Pic ket Fence icon to a digital channel on
the picture of the inter f ace ( i.e . to the same letter in whi ch y ou ha ve
the photogate connected). The default band spacing is .050
meters. c) (Optional): To change the band spacing for the high
resolution tape, double click on the Photogate icon and click the
Constant tab. Enter t he value 0.010 m in the Constant tab. Click
OK.
interface. b) Launch DataStudio.
a) In the Welcome to DataStudio window,
PART III: Col lect Dataa) From the Data list, drag the desired measurement to a display.
b) Click the Start button on the main toolbar.
12
®
Model No. ME-6664Photogate Tape Set
Appendix B: Technical Support
For assistance with the ME-666 4 P hot oga te Tape Set or any other PA SCO products, contact
PASCO as follows:
Address: PASCO scientific
10101 Foothills Blvd.
Roseville, CA 95747-7100
Phone: (916) 786-3800
FAX: (916) 786-3292
Web: www.pasco.com
Email: techsupp@pasco.com
Appendix C: Copyright and Warranty Information
Copyright Notice
The PASCO scientific 012-08625A Photogate Tape Set Manual is copyrigh ted and all righ ts
reserved. Howeve r, permission is grant ed to non-profit educational institutions for
reproduction of any pa rt of the 012-08625A Photogate Tape Set Manual, providing the
reproductions are use d onl y for their laboratories and are not sold for profit. Reproduction
under any other circumstances, without the writt en con sent of PASCO scientific, is
prohibited.
Limited Warranty
For a description of the PASCO warranty, see the PASCO catalog.
®
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