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Laser Interferometer

Laser Interferometer

Benefits of device

  • Very accurate measuring device with resolution of 100 pm with speed up to 7 m/s
  • Easy adjustment thanks to electronic alignment tool
  • Full version of software is available for free including updates
  • The whole system is to be very compact with a total weight up to 10 kg
  • Generating CNC path of machine (G code) is included in free software
  • Results are evaluated according to world standards (ISO, ASME, VDI, JIS or GB)

Description

The HPI-3D interferometer from Lasertex is very accurate measuring device and is most often used to calibrate measuring equipment and machine tools or for length measurements. It can measure long distances (in the double digits of meters) or extremely short distances (in the hundreds of picometers). It detect extremely fast or extremely slow movements, monitor vibrations, measure angles, compare distances, and test straightness, flatness, right angles and many other parameters.

The laser is suitable for use in scientific laboratories, machining halls and outside areas. Its compact size means you can carry it with you in a handheld case.

The system includes a laser head, optics for linear measurement, sensors for environmental compensation and a computer with software. This standard equipment is sufficient for most basic applications. If necessary, it is possible to add components for measuring perpendicularity, flatness or for accurate measurement of the positioning of rotary axes.

3D Optics

3D Optics

Angular Optics

Angular Optics

Wollaston

Wollaston

Right Angle

Right Angle

Magnetic mounting base

Magnetic mounting base

Tripod

Tripod

Wireless sensors

Wireless sensors

Mounting elements

Mounting elements


System applications

  • Straightness measurements
  • Flatness measurement
  • Squareness measurements
  • Small angle measurements
  • Axis parallelism measurements
  • Positioning of CNC and CMM machines
  • Dynamic measurements
  • Ball screw inspection
  • Vibration measurements
  • Machine maintenance
  • Variety of laboratory application

Technical specifications

Main Specifications
Laser type He-Ne laser with frequency stabilization
Wavelength accuracy ± 0,005 ppm
Maximum velocity ± 7 m/s (20 m/s)
Resolution 100 pm
Preheat time < 5 min
Temperature range 0-40 °C
Measuring vibration Up to 100 KHz
Compensation of environmental 
conditions
Real time compensation with wireless sensors 
1x air temperature, humidity and pressure sensor
3x material temperature sensor
Weight 1200 g – laser head
500 g – power supply
Measurement Range Resolution Accuracy
Distance 0-40 (40-80) m 0,0001 µm 0,41 µ/m 
Velocity 0-7 m/s 0,25 µm/s ±0,01 % µm
Angular 0-3600 arcsec 0,001 arcsec ±0,1 ppm
Straightness
(Angular optics)
0-15 m 0,01 µm ±0,2 % µm
Straightness
(Wollaston prism)
0,3-9 m 0,01 µm ±0,5 % · L µm
Straightness
(3D optics)
0-6 m 0,1 µm (5 + 5 · L) µm
Flatness 0-15 m 0,01 µrad ±0,2 % µm
Squareness ±1000 arcsec 0,01 µm ±0,5 arcsec

* L – the distance between optical components in [m]

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