Canon LV-20Z/LV-50Z Laser Doppler Velocity Sensor

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LV-20Z/LV-50Z

circa September 2007

Laser Doppler Velocimeter enables non-contact measurement from zero speed.

Contact-free measuring of movement speeds, movement distances, speed irregularities, and rotation irregularities.
Enables wide speed range measurement from still state.
Automatic gain control (AGC), Automatic Doppler frequency following function are equipped.

		LV-20Z	LV-50Z
Optical sensor		S-100Z
Signal Processing unit		P-20Z	P-50Z
Measurement Range		-200 to 2000 mm / sec.	-50 to 5000 mm / sec.
Maximum Resolution		2.5 µm / pulse	5 µm / pulse
Focal Length		40 mm
Depth of focus		± 5 mm
Laser spot size		2.4 x 0.1 mm (at focal point)
Velocity fluctuation response frequency		0 to 300 Hz
Effective object surface		Reflectance 20 % or more, flat scattered
Output Signal	1 : F/V analog output	-4 to + 5 V (at RANGE 4)	- 0.6 to + 7.5 V (at RANGE 4 )
	Accuracy	less than ± 1 % of full scale
	2 : A,B phase balanced output	2.5, 5, 10, 20, 40, 80, 160, 320 µm	5, 10, 20, 40, 80, 160, 320, 640 µm
	Phase difference	90 ± 30 deg
	3 : Doppler pulse output	120 to 1000 kHz	180 to 2200 kHz
	Measurement Certainty	<100 mm / sec : ± 0.2 mm / sec, > 100 mm / sec : ± 0.2 %
	4 : Optical shift frequency output	200 kHz, CMOS level
	5 : UP/DOWN pulse output	pulse per Δd moving to positive/negative direction
	6 : Measurement error output	Indicate high level when error
Velocity display		5 digit (mm / sec, m / min. selectable)
Light source		Semiconductor laser ( 680 nm)
Voltage		100 ~ 240 V
External dimensions	Optical sensor	33 x 98 x 39 mm
	Main unit	235 x 290 x 115 mm
Ambient conditions	Operating Temperature	0 to 45 ºC
	Storage Temperature	-30 to 60 ºC
	Humidity	80 % RH or less (no condensation)