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PDF DT137 Data sheet ( Hoja de datos )
| Número de pieza | DT137 | |
| Descripción | Photo Gate Sensor | |
| Fabricantes | Fourier | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de DT137 (archivo pdf) en la parte inferior de esta página. Total 24 Páginas | ||
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Photo Gate Sensor
DT137
The Photo Gate Sensor is a general-purpose photo gate that measures the time it
takes for an object to pass between its arms.
The Photo Gate sensor is used for a wide variety of experiments in physics and
physical science classes and is supplied with a mounting rod.
Typical Experiments
• Measuring the free fall acceleration
• Studying the swing of a pendulum
• Measuring the speed of a rolling object
• Measuring the speed of objects undergoing collisions
How it Works
The Photo Gate sensor has a narrow, infrared beam and fast response time, which
provides very accurate signals for timing. When the infrared beam between the
source and detector is blocked, the output of the photo gate is high (high voltage, 5
V, on the graph) and the light-emitting diode (LED) on the photo gate lights up. When
the beam is not blocked; the output is low (low voltage, 0 V, on the graph) and the
LED is off.
When working with the Fourier data logger and MultiLab software, it is recognized as
a 0-5 V sensor.
1
1 page  
Time and speed at one gate
1. Press Enter , and then use the
arrow buttons to select the card (the
body that blocks the gate) width in
mm between 0 to 59 mm.
2. Press Enter twice, then use the
Forward arrow button to enter to
timing standby mode.
3. Timing begins each time a body
blocks the photo gate and ends when
the photo gate is unblocked.
MultiLogPRO then displays the
elapsed time between entering and
leaving the gate and the speed of the
body.
4. Use the arrow buttons to scroll
between the time and speed results.
5. Press Escape
Timing menu.
to return to the
6. Press Escape a second time to
return to the main menu.
Time and speed between gates
1. Press Enter twice, then use the
Forward arrow button to select
the distance between the photo gates
in cm between 0 to 99 cm.
2. Press Enter , and then use the
Forward arrow button to enter to
timing standby mode.
3. Timing begins each time a body
enters the first photo gate (Input 1)
and ends when leaving the second
photo gate (Input 2). MultiLogPRO
then displays the elapsed time
between entering the gates and the
body's average velocity.
4. Use the arrow buttons to scroll
between the time and speed results.
5. Press Escape
Timing menu.
to return to the
6. Press Escape a second time to
return to the main menu.
Time, Speed and Acceleration
In this mode MultiLogPRO measures the crossing time at the first gate, the time it
takes the body to move from one gate to the second gate and the crossing time at
the second gate. It returns the time between gates, the average speed and the
average acceleration.
5
5 Page 
Between gates
Required parameters: L – The distance between gates
Input 1
t2
t1
Input 2
t3
t4
Result:
Acceleration
v= L;
Δt
Δt = t3 − t1
Between gates
Required parameters: w – The body’s width
Δt
Input 1
t2
t1
Input 2
Result:
t3
t4
v1
=
t2
w
− t1
;
v2
=
t4
w
− t3
Δt = t4 + t3 − t2 − t1
2
a = v2 − v1
Δt
11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet DT137.PDF ] | |
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