Optical sensor for acquisition of rotational speeds
The laser sensor developed by ROTEC is used to detect rotational speeds according to the reflex method. Depending on the application, a ROTEC zebra disk or zebra band is scanned.
Technical drawing
Features
- Fiber optic cable available with textile or metal cladding
- The target can be scanned from the front or via a deflection mirror at a 90° angle
- Available with ROTEC zebra disc/zebra tape
Variants
Optical fiber with metal cladding
Item number: SELAS4
Optical fiber with textile cladding
Item number: SELAS5
Technical data
Sensor head
- single piece
Sensor surface
- laser beam face side or angled at 90°
- via deflection mirror
Sensor length
- 45 mm
Sensor type
- laser probe with optical fiber, requires downstream ROTEC Laser Tachometer
Sensor housing
- stainless steel
- external thread M10x1
- standard thread length 15 mm
Pins
- integrated optical fiber, textile or metal jacketed (5 m)
Maximum gearwheel frequency
- 65 kHz with downstream ROTEC Laser Tachometer
Requirements encoder wheel/shaft
- applied with ROTEC Zebra discs and tapes
Sensing gap
- with typ. Line widths ≥ 1 mm: 30 to 80 mm
- with min. line width of 0.25 mm: 20 mm
Temperature range
- -10 °C to +50 °C
