Laser Interferometer SJ6000
SJ6000 Laser Interferometer Measurement System
Discover the SJ6000 – a next-generation laser interferometer measurement system designed to deliver uncompromising precision and flexibility for industrial metrology applications.
Key Features
Measuring range: 0 – 80 m; resolution: 1 nm.
Laser frequency accuracy: 0.05 ppm.
Dynamic capture rate: up to 50 kHz—supports time-based displacement, velocity and acceleration analysis.
Environmental compensation: built-in sensors for temperature, pressure, humidity and material temperature ensure measurement stability even under changing conditions.
Robust design: interferometer optics separated from the host to minimize thermal distortion and guarantee long-term stability of the interference path.
Capabilities & Application
The SJ6000 enables comprehensive geometric and dynamic measurements:
Linearity, straightness, flatness, perpendicularity, angle and rotational axis calibration of machine tools, coordinate measuring machines and precision motion systems.
Automatic error compensation: generate error tables for machine tool calibration based on measured data.
Dynamic measurement and analysis: extract displacement-time, velocity-time, acceleration-time curves; evaluate vibration behavior, ball screw dynamics and drive system response.
Standards-compliant reporting: supports GB, ISO, BS, ANSI, DIN, JIS and more; exportable data in Word, Excel and AutoCAD formats.
Dynamic Measurement Application
Time based
Motion performance evaluation
Control parameter test and setting of motion controller PID.
Stability test and evaluation after high-speed motion.
Small steps test of high-performance motion controller.
Vibration monitoring
Scanning application:
Applied for the situation when positioning accuracy is not important but constant speed is critical for high quality imaging.
Machine tool applications:
Applied for the situation when slow and smooth contour movement of cutting tool is critical for high quality machining.
Vibration frequency analysis
Vibration frequency analysis of the measured object
FFT fast Fourier transform analysis
Distance based
In distance-based dynamic measurement, laser interferometer SJ6000 "flies" along the axis, that means SJ6000 samples data at designated points without stopping.
Pulse Trigger Mode
Pulse trigger CT70 is compatible with glass scales, encoders and controllers. Equipped with Pulse trigger CT70, laser interferometer SJ6000 can sample data in pulse trigger mode. Even if the axis does not stop, laser interferometer SJ6000 could sample data at designated points or continuously sample data.
Pulse trigger CT70


Rotary Axis Calibrator WR 50
as an angle master.


Full Specifications
The SJ6000 enables comprehensive geometric and dynamic measurements:
Linearity, straightness, flatness, perpendicularity, angle and rotational axis calibration of machine tools, coordinate measuring machines and precision motion systems.
Automatic error compensation: generate error tables for machine tool calibration based on measured data.
Dynamic measurement and analysis: extract displacement-time, velocity-time, acceleration-time curves; evaluate vibration behavior, ball screw dynamics and drive system response.
Standards-compliant reporting: supports GB, ISO, BS, ANSI, DIN, JIS and more; exportable data in Word, Excel and AutoCAD formats.