DEVICE FOR NON-CONTACT INSPECTION OF SURFACE ROUGHNESS Russian patent published in 2011 - IPC G01B11/30 

FIELD: physics.

SUBSTANCE: device has an illuminator, photoconverters of radiation reflected from the inspected surface, and an electronic block. The electronic block has a switch, an analogue-to-digital converter, a microcontroller, an interface controller, nonvolatile memory, a register and a power supply. The output of the switch is connected to the analogue input of the analogue-to-digital converter, the output digital bus and input control bus of which are respectively connected to the first input and first output buses of the microcontroller, the second output bus of which is connected to the control input of the switch. The third output bus of the microcontroller is connected to the on-board bus of the interface controller, the fourth output bus of the microcontroller is connected to the bus of the nonvolatile memory and the fifth output bus of the microcontroller is connected to the input bus of the register. The output bus of the interface controller is connected to a personal computer. The device has lenses placed between the inspected surface and the photoconverters which are in form of coordinate-sensitive photodetectors connected to inputs of two video signal processing units in the electronic block, where outputs of said units are connected to data inputs of the switch. The register is in form of liquid-crystal monitor.

EFFECT: high quality of inspecting surface roughness and broader functional capabilities of the device.

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