| 摘要 |
The vhiecles may be cable cars, and are provided with measuring instruments and brakes. Measurements of cable car speed changes are not continuous and are carried out by the three-pulse method. A disck (4) rotates, connected to the drive, and has three holes equally spaced in the direction of movement. When a hole passes a fixed light sources (3), short pulses are generated and received without delay by a stationary receiver (5) and stored in a calculating circuit for deceleration or acceleration calculation. Time intervals between the first and second, second and third and first and third pulse are used as constant inserted into a specified equation for speed change calculation. |
