The dpl-f hump speed measuring radar is used to continuously measure the actual speed of the vehicle, and has the functions of self-check and speed display.The hump speed measuring radar adopts 24.125ghz frequency band and digital signal processing technology, and the shell is made of aluminum alloy. Based on the analysis of the interference source, the improved radar can better restrain the interference of rain water, adjacent lines and vehicles on the line, and can conduct a more comprehensive analysis of doppler signals with high speed measuring accuracy.
Technical indicators：
◆ Work environment：
Environmental temperature: -40℃～70℃
Relative humidity: ≤90%（+25℃）
◆ Vibration: vibration frequency is 30Hz±1Hz, single amplitude is 0.5mm
◆ Work Power: 90VAC～260VAC（Wider than TB/T 2972-1999 standard～220V±10%）50Hz±2Hz，Work Current: ≤50mA
◆ Speed measurement
Range: 1km/h～30km/h（Wider than TB/T 2972-1999 standard 3km/h～30km/h）
Speed delay: ≤0.1s，Error: ±1%±0.1km/h
Display accuracy: ±0.1km/h
Effective distance: ≥50m
◆ Pulse output
Pulse frequency: 65.0hz /km/h (adjustable according to customer requirements)
Voltage mode: 8 or more VPP (load resistance when 1 k Ω or higher)
Current loop mode: ≥20mA
◆ Self-checking function
Control voltage: dc +12V±1V or +24V±1V
Impulse frequency：2000Hz±2Hz
◆ Microwave emission:
Frequency: 24.125GHz±0.025GHz, power: no more than 10mW
Antenna horizontal plane direction Angle: ≤5.0° (half power point)
◆ Lightning protection unit:
Signal lightning protection unit: OBOV20-C_75VAC
Power supply lightning protection unit: OBOV20-C_280VAC
