Artikelcode: F197570

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With a pair of SpeedGates, you can carry out all the experiments you can do with two traditional photogates and a universal timer - and then some!

With the precisely spaces double laser system you get speed readings without length measurements or calculations. The traditional time measurements are still possible if preferred for pedagogical reasons. The display divides into two parts giving you immediate access to all results.

SpeedGate is battery powered - used on its own, no cables are needed. When used together, SpeedGates are connected with the included flat cable. SpeedGate is operated with three pushbuttons controlling primary mode, secondary mode and reset. The reset button also functions as a power switch. The primary and secondary modes each correspond to one part of the display.

Front Time: The time it takes the front edge of an object to pass from one light beam to the other.

Dark Time: The time the object blocks one of the light beams.

Speed: Measured as the distance between light beams divided by Front Time.

Period: Time between the current and the previous blocking of a light beam.

Pendulum Period: Like Period but drops every other passage.

Interval Before: A signal from another SpeedGate starts the time interval, blocking a light beam stops it.

Interval After: Blocking a light beam starts the time interval, a signal from another SpeedGate stops it.

Many of these functions can also be used with external equipment connected to the Aux input. A few of the numerous applications for this versatile tool include kinematics of constant accelerated movement, the free fall, Newton's second law, one-dimensional elastic and inelastic collisions, the mathematical pendulum and more.

- Double light barrier - direct readout of speed
- Expandable with external sensors (like microphones)
- Several SpeedGates can be daisy chained for extended experiments