The AT Series Laser Doppler Vibrometer can measure the vibration of an object without contact, by means of the optical heterodyne method. By FM-demodulating the difference in frequency between reference and measured light, the AT Series can detect the speed and frequency of an object's vibration, rendering microvibration measurement possible.
The wide range of AT Series applications includes pickups for DVDs, CDs, and HDDs, vibration analysis of audio equipment, as well as applications relating to the automobile industry, general plant equipment, and micromachines.
Specifications of AT500
Item
AT500-05
AT500-20
Laser Portion
Laser output
He-Ne gas laser (wavelength 632.8nm)
Configuration
1mW or less
Measuring range of distance
90mm to 600mm from lens surface*1
Focus function
Manual/Auto*2
Shutter function
Electromagnetic system (Interlock and remote control)
Demodulation portion
Velocity output
Frequency characteristics
DC to 50kHz*3
DC to 200kHz*3
Velocity range
10-3m/s/V
10-2m/s/V
Integrating function
Frequency band
10Hz to 20kHz
-
Displacement range
1μm/V
-
Phase compensation
Phase compensation range
-
DC to 200kHz*4
Output phase delay
-
Within ±5 deg*5
Filter*6
H.P.F.
DC,10Hz,100Hz
DC,10Hz,100Hz
L.P.F.
1kHz,10kHz,50kHz
5kHz,50kHz,200kHz
General
Remote functions
Input: Auto Focus, Shutter, CAL Output: Busy, Alarm, Level, Emission
Additional demodulation functions*7
Output for light input signal BNC terminal
Environment
5 to 35°C,30 to 80%R.H.
Power source
AC adapter: AC100V to 240V/50 to 60Hz
Power consumption
Approx. 50VA (AC)
External size [WxDxH] (Approx.)
113 * 329 * 142 mm (excluding protruding portions)
产品名称：非接触式激光测振仪