Machine vision based spray angle detection

In the industrial production process, the detection cases that can be solved by machine vision involve all aspects. Commonly, there are size measurement, color recognition, barcode recognition, matching and positioning, etc. Today, Vevision image introduces the spray angle detection based on machine vision technology. system.

Measurement content: spray pump width / angle detection, to detect whether the width / angle of water spray sprayed from the nozzle after the spray pump is in operation meets the requirements.

Spray pump spray detection

Problem: The identification of OK / NG is mainly based on the angle and width of the water spray sprayed by the spray pump. Therefore, the angle and width need to be quantified.

Project requirements:

1. No liquid spray from the spray pump-for NG defective products

2.The water mist sprayed by the spray pump is in a straight state-it is a NG defective product

3. The liquid sprayed by the spray pump is a diffuse mist, but the diffusion width and angle do not reach the required values-it is a NG defective product

4. The liquid sprayed by the spray pump is a diffuse mist, and the diffusion width and angle reach the required values-it is OK good product

An Introduction:

The EM series high-resolution industrial camera of iJUNCO was selected. Because the spray image is captured at high speed, the exposure time of the camera needs to be reduced to capture a clear image. Because the nozzle is generally small, the field of view of the capture is also small. It is very small, you need to choose a ZML series microscope head or a BT series telecentric lens in order to capture a suitable image of the field of view; the light source is AFT series backlight, and the contrast of the image is improved by the light source, so as to take a high quality picture; After the image acquisition is completed, the professional image processing software MVICS needs to be used to analyze and process the image, measure and judge the spray angle, and then give the analysis result by comparison.

The analysis results are as follows:

Spray pump spray image processing analysis

This system uses iJUNCO's series products. Its product stability has been tested by the market for many years. Not only does Wei Shi Imaging provide comprehensive technical support, but also the camera software and image processing software provide secondary development kits, and its openness is also The user provides convenience.