PASCO ME-6664 User Manual

Instruction Manual
Manual No. 012-08625A
Photogate Tape Set
Model No. ME-6664
Table of Contents
Introduction ............................................................. 4
Typical Applications ..................................................... 4
Data Recording with the Photogate Tape .......................... 4-5
Equipment Setup ........................................................ 6
Experiment Applications ............................................ 7-10
Sample Data/Results...................................................11
Appendix A: DataStudio Setup Instructions ......................... 12
Appendix B: Technical Support ....................................... 13
Photogate Tape Set
Appendix C: Copyright and Warranty Information .................. 13
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Model No. ME-6664 Photogate Tape Set
Photogate Tape Set
Model No. ME-6664
Equipment List
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Included Equipment Replacement
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)
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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 Required Replacement
Model Number*
ScienceWorkshop
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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.
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interfaces do not require a Photogate Port.
ME-9498A or ME-9204B
NA
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Photogate Tape Set Model 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 .
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Model No. ME-6664 Photogate 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
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V
2
10 cm
V
3
15 cm
V
4
20 cm
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Photogate Tape Set Model 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.
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Model No. ME-6664 Photogate 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.
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Figure 3b: Fastening the Velcro over the Photogate
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Photogate Tape Set Model 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.
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Model No. ME-6664 Photogate 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).
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Photogate Tape Set Model 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-6664 Photogate Tape Set
Sample Data/Results
Launching a Rocket
Throwing a Tennis Ball
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Photogate Tape Set Model 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).
Procedure Steps 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 Data a) From the Data list, drag the desired measurement to a display.
b) Click the Start button on the main toolbar.
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Model No. ME-6664 Photogate 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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