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LV-S31 Laser sensor
Online Support and Services
Features

Adjustable distance detecting head, LV-S31

Ignore interference by objects in the background.

For full details, download the PRODUCT CATALOG using the CATALOG icon in the Online Support and Services box above

LV-S31: Unaffected by Targets' Color

No readjustment needed for tooling change
Since the LV-S31 detects based on target height or position, and not color, it will not have to be readjusted when the color of a target changes.
LV-S31 Series Adjustable Distance Detecting Head Laser Sensor
Light receiving element: Dual Photodiode
Light receiving element: Dual Photodiode
 

Dual Photodiode
The dual photodiode (PD) receives the reflected beam spot from a target and focuses it onto the dual PD. By adjusting the trimmer, the reflected spot can be centered so that half of the spot is on the NEAR PD, and half is on the FAR PD for a 1:1 ratio. As the target moves closer to the head, the reflected beam spot shifts more toward the NEAR PD and the displayed value will decrease. As the target is moved away from the head, the spot shifts toward the FAR PD and the displayed value increases. By detecting based on distance and not brightness, the LV-S31 can be set to detect that a part is not only present, but that it is in the correct position, regardless of the surface color.

Adjust setting to optimum conditions without relocating sensor - Adjustable Structure
You can adjust light receiving element to optimum conditions by simply rotating the adjustment trimmer.
Adjust setting to optimum conditions without relocating sensor - Adjustable Structure

Adjust setting with a sensor head
The sensor head is equipped with an output indicator and position indicator that indicates the distance with a target. This makes it easy to adjust the settings online if the amplifier is not easily accessible or visible.
Adjust setting with a sensor head

Distance - Hysteresis (Typical)
Hysteresis when the light receiving element and the setting value are adjusted to 5000 at each distance.
Distance - Hysteresis (Typical)
Color canceling function
Color canceling function
Dual photodiode and original algorithm correct color influence of a target that is displaced from the center.
Long-range gap detection
Long-range gap detection
The LV-S31 can detect a 0.04" (1 mm) gap at a distance of 7.87" (200 mm) and a 0.02" (0.5 mm) gap at a distance of 1.97" (50 mm). (Target: White paper, response speed: SPED4 at ambient temperature) *Maximum detecting distance varies according to target’s reflectance
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