The LP-DS100 Non-contact Speed Sensor is a Doppler radar sensor suitable for a wide variety of speed measurement applications.
The LP-DS100 Speed sensor may be placed on a moving vehicle to measure vehicle ground speed. It may also be mounted in a stationary position to measure the speed of a moving object which can be anything from a thin wire passing under the sensor to a vehicle 300 meters away. The output of the sensor is a pulse with a frequency proportional to the measured speed. The cumulative number of pulses may be used to determine distance traveled or the length of a moving surface.
The LP-DS100 speed sensor may be used with many different types of off-the-shelf hardware such as timers, counters, or digital tachometers. It can also be integrated into electronic control or data acquisition systems.
MAIN FEATURES:
• Non-contact Speed Measurement
• Fast Response Time
• Extremely Accurate
• Widest Range Available
• Small - Lightweight - Portable
• Weather Resistant
• Non-contact Speed Measurement • Fast Response Time • Extremely Accurate • Widest Range Available • Small - Lightweight - Portable • Weather Resistant | |
The speed sensor can be attached quickly to vehicles or other metallic surfaces with the magnetic base. Alternatively, the holes in the lower part of the pivot may be used to achieve a more permanent mount.
The Fixed Angle Mounting Bracket provides secure mounting for the LP-DS100 Non-contact Speed Sensor. The speed sensor can be attached to vehicles or to structures by using ¼ - 20 threaded hole or by using the ¼ inch through holes.
Typical industrial applications include:
• Vehicle Speed Measurement
• Conveyor Speed Measurement
• Traffic Monitoring
• Length or Distance Measurement
• Racecar Performance Tuning
Measure Vehicle Ground Speed | |
Traffic Monitoring | |
Non-Contact Speed Measurement | |
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| Parameter | Value |
| Output | 0 to 5 V square wave, differential or single ended 62.1 pulses per second for every kilometer per hour of speed measured (100 pulses per second for every mph of speed measured) |
| Speed Range | 0.8 to 480 km/h 0.5 to 300 mph |
| Accuracy | Total Unadjusted Error: ±0.34% at 1mph* * Error increased 0.0023% for every 1 mph increase in speed. For example, at 2 mph, the error increases to ±0.3423%. At 60 mph, the accuracy is ±0.48%. Overall accuracy of the speed measurement is also influenced by external factors which may include sensor alignment, vibration, etc. |
| Maximum Target Distance | Maximum target distance is determined by the size and shape of the target. The sensor can see an average size car at about 300 meters (1,000 feet). |
| Sensor Response | Update Period: 0.01 seconds Locking Latency: 0.02 seconds Unlocking Latency: 0.05 seconds Sensor Time Constant: 0.025 seconds |
| Microwave Characteristics | Frequency: Ka Band - 35.5 ±0.1 GHz Beam Divergence Angle: 6° from center Average RF Power: 0.02 W maximum Effective Radiated Power: 0.98 W Note: The sensor's transmitted signal is regulated under FCC regulations Part 90, subpart F. |
| Power Supply | 10.5 to 16.5 VDC, 2.4 W |
| Temperature Range | -17 to 60° C |
| Enclosure | Weather Resistant |
| Weight | 230g (0.5 lbs.) |
Doppler Shift Principle
The LP-DS100 Speed Sensor is a Doppler radar device that determines a moving object’s speed using the Doppler effect, or Doppler shift.According to the principle of the Doppler effect, when a wave reflects off of, or is emitted by, a moving object, the wave’s frequency is changed, or shifted. A common example of the Doppler effect can be observed when a car drives past a bystander. To the bystander, the car sounds higher in pitch as it approaches and lower in pitch as it recedes.
Typical industrial applications include:
• Vehicle Speed Measurement
• Conveyor Speed Measurement
• Traffic Monitoring
• Length or Distance Measurement
• Racecar Performance Tuning
Measure Vehicle Ground Speed | |
Traffic Monitoring | |
Non-Contact Speed Measurement | |
| |
Typical industrial applications include:
• Vehicle Speed Measurement
• Conveyor Speed Measurement
• Traffic Monitoring
• Length or Distance Measurement
• Racecar Performance Tuning
Measure Vehicle Ground Speed | |
Traffic Monitoring | |
Non-Contact Speed Measurement | |
| |
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