PHOTOGATE
This sensor is designed to detect whether there is something in between the two ends of it.
Specifications
| Specification | Value |
|---|---|
| Output | >4.0V (Blocked), <1.0V (Unblocked) |
| Light Source | Infra-Red with peak wavelength at 875 nm |
Illustrative Experiments
Illustrative Experiment
The graph shows the output of the Photogate versus time when a pendulum was made to swing between it. The period of the pendulum can be readily determined by the time difference between 2 consecutive falling edges.