Interferometric Distance Measurement
- Overview
- Sensor Heads
- Accessoires
- Specifications
- Downloads
Next to relative and absolute distance measurement, vibration analysis is possible with a 25 kHz bandwidth in free space or glass rods & fibers as cavities.
Key Features
Confocal displacement sensor |
Fiber interferometer |
< 0.05 nm signal stability, no periodical artifacts |
Absolute distance measurement |
0.03 … 20 m working distance |
25 kHz bandwidth |
Contrast independent |
3 sensor axes, multiple devices |
Flexible fiber-based sensor heads |
Applications
Slow drifts |
Vibration analysis |
Position and angles |
Velocity and acceleration |
Quality control |
Fail-safe procedures |
Beam interrupt compensation |
Quality control |
Gap and edge measurement in layered structures |
Sensor Heads
All applications require different constrains for collimation, focusing and the beam profile, depending on their reflecting targets. The shaping of the laser beam is achieved by different sensor heads. All these sensor heads for quDIS are based on optical fibers, well-established in the telecommunication market.
Next to standard collimators and established focusing heads, qutools designs special heads for applications in harsh environments.
Accessoires and Upgrades
Absolute Measurement
Determination of absolute distances within the wavelength range.
Compensation of huge height differences or beam interruptions.
quCATCH
Fibre coupling unit for fast and automatic laser coupling.
Quick calibration measurement even at separated locations.
Ambient Measurement Unit (AMU)
Analysis of environmental parameters like temperature and pressure.
Failure correction, Measurement of refractive index.
Reflectors
Different reflector solutions: Retroreflectors, plane or parabolic mirrors.
Temperature caused deformation and signal stabilisation.
Specifications
Specification | Value | Unit |
---|---|---|
Resolution | 1 | pm |
Signal stability, relative distance *1 | < 0.05 | nm |
Accuracy relative measurement | 200 | nm/m |
Signal stability, absolute distance *2 | < 200 | nm |
Accuracy absolute measurement | 2000 | nm/m |
Bandwidth relative / absolute | 25 | kHz |
Working distance *3 | 0.03 ... 20 | m |
Target speed | 1 | m/s |
Laser power (class 1) | < 400 | µW |
Wavelength | 1 535 | nm |
Fiber input connectors | FC Narrow-Key-Slot Mating Sleeves | |
Axes | 3 | |
Upgradeable | Absolute distance measurement | |
Interface | USB 3.0, Ethernet | |
Software | GUI, DLL, LabView, Python, Command line | |
Dimensions | 440 x 300 x 50 | mm x mm x mm |
Power consumption | < 50 | W at 100 to 230 VAC |
*1: relative distance RMS@ 100Hz, 2s, 130mm
*2: absolute distance RMS@ 100 Hz 130 mm
*3: sensor head dependent
Downloads
quDIS brochure | 06/2020 | 3.5 MB | |
quDIS datasheet | 07/2019 | 0.2 MB | |
quDIS whitepaper | 06/2020 | 0.9 MB |
Software
quDIS software V1.1.3 | 03/2020 | 13.2 MB | exe |
quDIS 64bit library win V1.1.3 | 03/2020 | 0.2 MB | zip |
quDIS 64bit Linux V1.1.3 | 03/2020 | 2.0 MB | tgz |