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Displacement analysis software
LV-0930

Laser Length Measurement
Laser Interferometric Displacement Meter
Laser Doppler Vibrometer

The LV-0930 is a digital analysis software for various amplitudes including displacement.

By using the LV-0930 displacement analysis software, you can analyze the dynamic behavior that occurs when the measurement target moves to a stop at a maximum sampling rate of 1 MHz.

In addition to the target's displacement (m), velocity (m/s), and acceleration (m/s²), it can measure overshoot and undershoot, and by using two sensors, it can analyze pitching and yawing differentials.

Additionally, it can easily display graphs showing how much within a percentage of the target speed the constant speed control is.



LV-1800 Laser Doppler Vibrometer →
LV-9002/LV-9300A/LV-0121A Laser Length Measurement System →

Features

  • Maximum 5 m/s, supports 1 MHz sampling.

  • "Simultaneous conversion between displacement, velocity, and acceleration is also easy."

Dynamic Characteristics Analysis

The displacement (m) of the measurement target and the changes in its speed (m/s) and acceleration (m/s 2) can be visualized, allowing for the analysis of the dynamic characteristics of the measurement target.
It is also possible to draw three waveforms simultaneously and output the data in CSV format.

  • displacement (m)
    displacement (m)
  • Acceleration (m/s²) Displacement → Acceleration Conversion
    Acceleration (m/s²) Displacement → Acceleration Conversion
  • Speed (m/s) Displacement → Speed Conversion
    Speed (m/s) Displacement → Speed Conversion
  • Displacement & Acceleration Graph
    Displacement & Acceleration Graph

Frequency Analysis

Frequency Analysis
Frequency Analysis

It is possible to perform frequency analysis on the components of displacement fluctuations that overlap with the measured displacement.

±% graph

In the evaluation of devices such as scanners, printer heads, and liquid application devices or dispensers that require precision in movement at a constant speed, using a ±% graph allows for a simple verification of whether the measured object is within a certain percentage of the control speed command value.

  • ±% graph

Pitching & Yawing, Differential Measurement

By using two or more sensors, it is possible to evaluate the up and down rotation (pitching) and left and right rotation (yawing) based on the direction of movement of the measurement target.
In implementation machines, the head part of the mount and the nozzle's sway and convergence time during high-speed movement can be measured by differential measurement.

  • Pitching & Yawing, Differential Measurement

Positioning Accuracy Test

By operating the measurement target at equal intervals and counts in both positive and negative directions, the deviation from the target position can be automatically calculated.
The actual stopped position is plotted in real-time on a time-displacement graph against the set control target value, and a position-deviation graph is displayed. For each control target position, the average deviation and standard deviation are calculated by direction. The results can be output as graphs or CSV files.

  • Evaluation action (example) (5 points and 5 back-and-forth structure)
    Evaluation action (example) (5 points and 5 back-and-forth structure)
  • Movement Quantity - Time Data (5 Points and 5 Round Trips Data)
    Movement Quantity - Time Data (5 Points and 5 Round Trips Data)
  • Average deviation graph according to the distance traveled.
    Average deviation graph according to the distance traveled.
  • CSV output of measurement data
    CSV output of measurement data

Specification

Environment settings input Temperature (°C) / Humidity (%) / Atmospheric Pressure (hPa) / Laser Wavelength (nm) / Thermal Expansion Correction Rate (ppm/°C) / Object Temperature (°C) / Number of Channels Used / Polarity Setting
monitoring function Monitorable channels Ch1, Ch2, Ch3, Ch4 Display the displacement values of connected sensors.
measurement indicator White: Measurement interrupted / Green: Measurement and monitoring in progress
Laser reception ERROR
Indicator		 White: Light reception level normal / Red: No light reception, light beam obstructed
Y-axis scale (m) ±10 m, ±5 m, ±20 mm, ±1 mm, ±100 μm, ±10 μm
X-axis scale (s) Determined by the number of sampling points and the sampling frequency.
cursor function Display the displacement value of the selected time using the scroll bar.
Switching SI Prefix for Displacement Value mm, μm, nm
Sample Score Display 1 to 65535 (set value)
Continuous cumulative number display 1-10 (set value)
Time Measurement
Analysis Function		 sample size Sample size 1 to 65535
number of consecutive occurrences 1～10
sampling frequency 1 MHz, 500 kHz, 200 kHz, 100 kHz, 50 kHz, 20 kHz, 10 kHz, 5 kHz, 2 kHz, 1 kHz, 500 Hz, 200 Hz, 100 Hz, 50 Hz, 20 Hz, 10 Hz, 5 Hz, 2 Hz, 1 Hz, 0.5 Hz
Recording time
※Sampling points: 65535 points		 65.5 m sec (1 MHz sampling)
~36 hours 24 minutes 30 seconds (0.5 Hz sampling)
trigger function
Type OFF / Ch1 / EXT (External Input)
direction ↑ (Rise), ↓ (Fall)
position 0%, 25%, 50%, 75%
trigger position 0 to ±10 (nm, μm, mm, m)
Positioning Accuracy
Analysis Function		 setting Pitch interval (mm) / + direction count, - direction count / number of repetitions
Control tolerance (mm) / Stop speed setting (mm/s) / End value
sampling time 62.5 ms ※ Fixed sampling time for displacement value measurement is 62.5 ms.
Positioning accuracy
Statistical analysis function		 Average deviation of each position based on the number of repetitions.
Average deviation of each position based on the number of return repetitions.
Average deviation of each position based on the number of repetitions during the round trip.
Standard deviation of the average deviation for each position based on the number of iterations.
Standard deviation of the average deviation for each position based on the number of times repeated in return.
Standard deviation of the mean deviation for each position based on the number of round trips.
Deviation of each position for the outbound and return trips at each number of repetitions.
Positioning accuracy
Statistical analysis graph
Printing function		 Deviation and repeatability of one-directional positioning (outgoing)
Deviation and repeatability (return) of unidirectional positioning.
Deviation and repeatability of positioning in both directions (to and from)
Test Conditions: Recording and Editing Test Date/Time/Test Location/Model Name/Machine Number/Measurement Axis/Temperature (°C)/Pressure (hPa)/Humidity (%)/Object Temperature (#1) (°C)/Object Temperature (#2) (°C)/Linear Expansion Coefficient (ppm)/Positioning Measurement Setting Value
analysis function amplitude Time-Displacement (m)
Time-Velocity (m/s)
Time-Acceleration (m/s 2)
Drawing a fluctuation graph
Upper and Lower Limits (%) 0.001, 0.01, 0.1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 500
central value Numeric input m / m/s m/s 2
multiple channel analysis Pitching & Yawing / True Value / Angle / Difference *When using two or more sensors.
moving average 1 to 100 (times)
Frequency Analysis
frame length 128, 256, 512, 1024, 2048, 4096, 8192, 16384
window function Rectangular / Hanning / FlatTop / Exponential
Over
Wrap (%)		 0、25、50、75
offset correction Offset correction of 2 to 10 waveforms
digital filter
Filter
Tap Length		 32, 64, 128, 256, 512, 1024, 2048
LPF (sampling frequency / 2.56) Hz to 0 Hz
HPF 0 Hz to (sampling frequency / 2.56) Hz
Search Cursor Function Main search cursor, sub search cursor: amplitude / time / time delta / amplitude delta
data output numerical output Binary / csv
image output bitmap
OS/CPU OS Microsoft® Windows ® 10 64-bit version only, 11
For details on the version, please refer to Software Environment【Windows】.
CPU Intel ® Core™ i3 2 GHz or higher
Inquire about this product.

最終更新日:2022/02/01