| 摘要 |
The invention relates to a swimming starting block comprising a push-off plate for supporting at least feet of a swimmer during a start, as well as a sensor device which is connected to the push-off plate and which serves to detect at least changes in pressure on the push-off plate induced by the swimmer. The sensor device comprises a substantially elongated conductor for electromagnetic signals, which is connected with a first circumferential side to the push-off plate and with a second circumferential side, situated substantially opposite the first circumferential side, to a sensor-support plate arranged at a distance from the push-off plate and extending substantially parallel thereto. The push-off plate, in operation, is movable with respect to the sensor-support plate, under the influence of pressure changes induced by the swimmer, to induce a disturbance into electromagnetic signals sent through the conductor. The elongated conductor can be connected, at an end thereof, to a signal source for transmitting the electromagnetic signals through the conductor. The conductor can be connected, with a second end situated opposite the first end, to a signal detector, wherein the signal detector is arranged to detect disturbances in the electromagnetic signal. |
