Vernier Photogate
(Order Code VPG-BTD)
This general-purpose photogate can be used for a wide variety of experiments in
physics and physical science classes. Examples include
measuring freefall acceleration.
studying the swing of a pendulum.
measuring the speed of a rolling object.
timing the period of a rotating object.
measuring the speed of objects undergoing collisions.
The Vernier Photogate can be used as a traditional photogate for objects traveling
between the arms of the gate, and also as a laser gate for objects passing outside of
the arms of the gate. A mechanical shutter is used to block the internal gate,
switching the device to laser gate mode. The laser gate mode requires a visible pen
laser (not supplied). You can expect good results with a typical Class IIIa type laser
pointer, with a power of less than 5 mW.
The Vernier Photogate can be connected directly to an interface, or in a daisy-chain
configuration. In the daisy-chain mode, up to four photogates can be connected to a
single channel of the interface by connecting one photogate to another photogate,
connecting the last one directly to the interface.
Collecting Data with the Vernier Photogate
This sensor can be used with the following interfaces to collect data.
Vernier LabQuest
®
2 or the original LabQuest
®
as a standalone device or with a
computer
Vernier LabPro
®
for use with computers or TI graphing calculators
Vernier LabQuest
®
Mini with a computer
Texas Instruments CBL 2
™
Universal Lab Interface (ULI) (DG version)
Vernier SensorDAQ
®
TI-Nspire™ Lab Cradle
2
Here is the general procedure to follow when using the Photogate:
1. Connect the Photogate to the interface.
2. Start the data-collection software.
1
3. The software will identify the Photogate and load a default data-collection setup.
You are now ready to collect data.
Data-Collection Software
This sensor can be used with an interface and the following data-collection software.
Logger Pro 3 This computer program is used with LabQuest 2, LabQuest,
LabQuest Mini, or LabPro.
Logger Pro 2 This computer program is used with ULI or Serial Box Interface.
LabQuest App This program is used when LabQuest 2 or LabQuest is used as a
stand-alone device.
EasyData App This calculator application for the TI-83 Plus and TI-84 Plus can
be used with CBL 2, LabPro, and Vernier EasyLink. We recommend version 2.0
or newer, which can be downloaded from the Vernier web site,
www.vernier.com/easy/easydata.html, and then transferred to the calculator. See
the Vernier web site, www.vernier.com/calc/software/index.html, for more
information on the App and Program Transfer Guidebook.
DataQuest™ Software for TI-Nspire™ This calculator application for the
TI-Nspire can be used with the TI-Nspire Lab Cradle.
DataGate This calculator program can be used with a LabPro or CBL and the
following calculators: TI-73, TI-82, TI-83, TI-86, TI-89, TI-92, TI-92 Plus, and
Voyage 200. The program is available for download at www.vernier.com/til/2667
LabVIEW National Instruments LabVIEW™ software is a graphical
programming language sold by National Instruments. It is used with SensorDAQ
and can be used with a number of other Vernier interfaces. See
www.vernier.com/labview for more information.
NOTE: Vernier products are designed for educational use. Our products are not
designed nor recommended for any industrial, medical, or commercial process such
as life support, patient diagnosis, control of a manufacturing process, or industrial
testing of any kind.
What is Included with the Photogate?
The Vernier Photogate includes a cable for connection to one of the interfaces listed
above. An accessory rod is included for attachment to a ring stand.
1
If you are using Logger Pro 2 with either a ULI or SBI, the sensor will not auto-ID. Open an
experiment file for the Low-g Accelerometer in the Probes & Sensors folder.
(4 Seiten)
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