Laser thickness gauge
Principles of measurement
Thickness measurement module: comprised of two correlative laser displacement sensors. Those two sensors are used to measure the upper & lower surface position of the measured object respectively and obtain thickness of the measured object through calculation.
L: Distance between two laser displacement sensors
A: Distance from upper sensor to measured object
B: Distance from lower sensor to measured object
T: Thickness of measured object
Equipment highlights
Software interface
● Shock isolation design
● Accurate guarantee of upper & lower laser coaxiality
● High-precision displacement sensor
● One-key calibration
Technical parameters
| Name | On-line laser thickness gauge | On-line wide laser thickness gauge |
| Type of scanning frame | C-type | O-type |
| Quantity of sensors | 1 set of displacement sensor | 2 sets of displacement sensor |
| Sensor resolution | 0.02μm | |
| Sampling frequency | 50k Hz | |
| Spot | 25μm*1400μm | |
| Correlation | 98% | |
| Scanning speed | 0~18m/min, adjustable | 0~18m/min, adjustable (equivalent to the movement speed of single sensor, 0~36 m/min) |
| Repetition accuracy | ±3σ≤±0.3μm | |
| CDM version | Zone width 1 mm; repetition accuracy 3σ≤±0.5μm; real-time output of thickness signal;response time delay≤0.1ms | |
| Overall power | <3kW | |
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