Description
The Photogate can be connected directly to an interface, or, in a daisy-chain configuration, up to five photogates can be chained to a single interface channel. The Photogate includes a BT cable for connection to an interface, a pulley attachment and a steel support rod for mounting it to a stand. An IEEE1394 cable for connection between photogates can be ordered separately (CMA art. nr 07662). In the external laser gate mode, a fast visible light detector located at one of the photogate arms responds to the presence of a low-power laser beam. This external gate requires a visible pen laser (not supplied).
Technical specifications:
- Measuring ranges: 0 .. 1000 count events / 0 .. 2m (distance) / 0 .. 25 mL (with drop counter)
- Resolution: 1 count event
- Pulley details: Diameter: 0.067 m (0.064 m in the groove), Circumference: 0.21 m (0.20 m in the groove), Spokes: 10
- Detection times Rise: 2 μs / Fall: 0.5 μs
- Maximum sample frequency: 100 kHz (CoachLab II+, WiLab) / 1 MHz (VinciLab 2)
- Mounting rod: 13 cm
- Warranty: 3 years
Technical specifications of the photogate sensor are described in the product manual, see downloads.
Photogate BT63i can be used for a wide variety of experiments:
- measuring the acceleration due to gravity (use a transparent piece of plastic with stripes at regular intervals, which can be allowed to fall through the photogate),
- studying the swing of a pendulum
- measuring the speed of a moving (rolling) object
- timing the period of a rotating object
- measuring the speed of objects undergoing collisions
- measuring the liquid volume (drops) during a titration
The Photogate can be connected to analog BT inputs of the CMA interfaces.
Attention: The sensor cable BT – IEEE1394 needed to connect the sensor to an interface is not supplied with the sensor and has to be purchased separately (CMA Art. Nr BTsc_1 or BTsc_1Short).














