LISD-2M Laser Velocimeter & Rangefinder
LISD-2M Laser Velocimeter & Rangefinder measures vehicle speed and range for traffic control. The main advantage of LISD-2M Laser Velocimeter & Rangefinder is the use of narrow-beam light of semiconductor laser operating at wavelength of 0.8 µm and avalanche photodiode as the receiver that allows to distinguish any vehicle in heavy traffic. The device realizes the pulsed method of ranging with automatic calculation of radial velocity. LISD-2M Laser Velocimeter & Rangefinder performs:
- single measurement of speed and range by pushing of start button or by external signal
- automatic over-speed control mode, that is measurement of ther speed and range of objects at exceeding of speed limit
- registration of time of an over-speed accident
- operation under usual and difficult environmental conditions such as light snow, rain or fog
- serviceability control mode
Specifications Measurement speed0 - 250 km/h Maximum range to car400 m Measurement range2 - 999 m Range measurement accuracy± 0.3 m +0.001 L Measurement time0.45 s Directional pattern width0.004 x 0.004 rad Field of sight view6° Lifetime5 x 106 cycles InterfaceRS-232 Power supply:
- 6V, 4 AA battery (1000 measurements at 20 °C)
- external power supply 12 +-2V, 0.2A Overall dimensions210 x 170 x 92 mm Weightno more 1.3 kg Operating temperature range-30...+50 °C Safety standard: LISD-2M Laser Velocimeter & Rangefinder is eye-safe device and corresponds to Class 1 LISD-2M Laser Velocimeter & Rangefinder also registers a signal miss or loss, eliminates measurement errors because of jumping to another vehicle, automatically makes up to 10 repeat measurements in case of unsuccessful previous ones, has audible signaling indicative of operation and exceeding a speed limit.
 LISD-2M Laser Velocimeter & Rangefinder is designed as a single unit with a built-in battery. At the front of the device there is the sight eyepiece with the built-in digital indicator, the controls, the liquid-crystal display, the mains and interface plugs. The start button is placed at the top of housing. The device is provided by shoulder belt or could be set on a tripod.
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