One of the most useful devices for studying motion and timing, we offer two different photogate sensors that work with our software and two standalone options.
Photogates are a staple of every physics lab, used to teach students fundamental concepts about measuring time intervals and calculating speed and acceleration from their measurements. Physics teachers prefer photogates over traditional stopwatches due to their increased accuracy. Photogates are a timing device that measure times of the changes in state of an infrared beam that is blocked by a flag of known length, as well as the times the beam is unblocked. Using the flag length, and the blocked time, students can calculate speed. The smaller the flag length, the more 'instantaneous' the measurement becomes. Using a "Picket Fence" (a card with multiple flags), students can calculate acceleration. Photogates can also measure the rotation of a pulley with wide enough spokes that act as 'flags' to block the photogate's infrared beam.
Smart Gate is an advancement in the design of the traditional photogate. It can be configured for all of the traditional uses of a standard photogate, and with its new features - experiments that a standard photogate cannot do. The Smart gate contains two photogates spaced 1.5 cm apart which gives it the most accurate measurement of speed over any traditional photogate. The rise and fall times of the Smart Gate measurements are faster than any other photogate, which results is more accurate timing. The Smart Gate also includes an auxiliary port for daisy chaining an extra Photogate or a Time of Flight Accessory. Use the built in photogate tape guide to use our Mylar Photogate Tape for measuring the speed and acceleration of fast moving objects that cannot travel through the Smart Gate Head. Smart Gate also includes a laser switch which enables a simple laser pointer to be used as the beam. This is useful for measuring timing of objects that are very large, or when you need a very long beam spacing.
Smart Gate has the same mounting footprint as our traditional photogate head, and is compatible with all of PASCO's photogate compatible apparatus.
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Smart Gate Products:
The Projectile Launcher Smart Gate System combines our mini launcher and the Smart Gate along with the mounting brackets and table clamp to create a complete system to study projectile motion while accurately measuring the initial velocity.
Smart Gate Compatibility:
Smart Gate is directly compatible with PASPort interfaces (Except the Xplorer GLX and SPARK Science Learning System).
Originally designed as part of PASCO's original line of ScienceWorkshop sensors, the Photogate Heads are compatible with the 550 & 850 Universal Interfaces, legacy SW interfaces, and require the Digital Adapter to connect to PASPort interfaces such as the AirLink.
The Photogate head can also be daisy chained to a Smart Gate.
The Photogate Head is available by itself or packaged with either a Photogate Stand or a Smart Pulley
For use with PASCO dynamics systems.
Required if using a PASPORT interface with one or two Photogate Heads.
If you don't plan to use PASCO software or would just prefer an independent system, the Digital Photogate Timer Systems and Smart Timer Systems are available.
The Digital Timer System is a complete system that is simple and reliable with high resolution. It has simple onboard memory to record two times.
The Smart Timer System is a standalone timer that can control one or two of our photogate heads. It is available separately (with included picket fences) or as a complete system.
The Smart Timer has simple setup buttons for all of the most common uses of a photogate including picket fences, pendulums, collisions, dual gates pulleys and more.
For use with PASCO Projectile Launchers.