Application and Features:
The BDL laser Doppler velocimeter is an optical velocity sensor used for non-contact measurement of one-dimensional surface velocity. A dual beam laser Doppler velocimetry system that uses a phase modulator to achieve frequency shift and fast Fourier transform for frequency detection, thereby achieving velocity measurement.
This laser surface velocity and length measuring instrument adopts the most advanced laser Doppler technology today, which can non-contact measure and collect velocity and length data of the measured object.
This device uses an infrared 1550 nm band light source that is safe for human eyes;
Laser execution standards: GJB548
• Laser lifespan: greater than 10 years
Technical parameters:
Measurement method: Vertical to the surface of the object being measured
Target temperature detection: up to 1200 ℃
Accuracy: 0.05%
Repetitive error: 0.02%
Direction: Automatic detection (dual direction)
Minimum speed: 0 (in both directions)
0.3m/min (unidirectional)
Maximum speed: 20000m/min
Allowable acceleration: 600m/s²
Supply voltage: DC24V（ 20 – 28 VDC）
Power consumption:< 11w< span=””>
Temperature range:- 30℃ – 50℃
Anti electromagnetic interference level: Standard level four
Zeroing mode: high level, low level, rising edge, falling edge
Signal output: AB pulse, RS422 or RS485
Pulse parameters: 5v/24V optional
Pulse output: editable
Communication protocol: Modbus-RTU
Sampling time: Multiple options, fastest 0.01ms
Protection level: IP66
