目前与气垫导轨配套的数字计时器,多用透射式光电探头.而数字计时器除在气轨上使用外,还可以广泛用在其它计时方面,因此有的厂家生产的数字计时器除配有透射式光电探头外,还配有反射式光电探头,如上海第二工业大学校办厂生产的VAFN多用数字测试仪 Now with the air cushion guideway digital timer, multi-purpose transmissive photoelectric probe.In addition to the digital timer on the air track, but also can be widely used in other timing, so some manufacturers except digital timer with transmission Type photoelectric probe, but also with a reflective photoelectric probe, such as the Shanghai Second Polytechnic University set up factories VAFN production of digital multi-tester