Capacitive Height Controller

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FROG 200SE

Fiber laser control system used to monitor and control the stand-off distance between the nozzle and the workpiece surface

FROG 200SE

Fiber laser control system used to monitor and control the stand-off distance between the nozzle and the workpiece surface

This capacitive height sensor and controller is designed to keep laser cutting consistent and reliable by controlling the distance between the nozzle and the workpiece surface. During the laser cutting process, factors such as uneven material surfaces or the high pressure of assist gas can cause the distance between the nozzle and the workpiece to fluctuate. This not only affects cut quality but may even damage the nozzle. Our fiber laser control system ensures a constant stand-off distance at high cutting speeds, protecting the nozzle from collisions and significantly improving cutting performance.

Features

Sampling rate: 1000 times per second
Static measurement accuracy: 0.001 mm
Height control range: 0-25 mm
Signal transmission distance: up to 100 m cable length, with strong anti-interference capability
Supports network communication, USB upgrades, and online firmware updates
Built-in jitter suppression to counter disturbances from gas flow and spatter
Compatible with any cutting head and nozzle, with adaptive capacitance parameters
Safety functions include collision alarm, missing nozzle electrode detection, and sensor disconnection alert.

Supports 1-point, 2-point, and 16-point calibration with curve display
Real-time capacitance calibration compensates for temperature and other environmental influences
16-bit DA output: ±10V control signal in sensor mode or 0-10V linear height signal in measurement mode, updated 1000 times per second
14-bit AD input: monitors external analog voltage (0-10V) to adjust static distance in real time
Oscilloscope function for live monitoring of laser nozzle sensor activity
Diagnostic testing to check AD/DA conversions in real time
Optional EtherCAT bus communication

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