What are the key factors related to industrial camera selection?-Enyo Technology|Customized manufacturer of industrial camera module

What are the key factors related to industrial camera selection?

2024-10-09

As we all know, industrial cameras are one of the key components in machine vision inspection systems, and play a crucial role in the fields of modern manufacturing, automated inspection and quality control.Choosing the right industrial camera can directly determine the image resolution and image quality, which is closely related to the stability of the entire visual inspection system. So what key factors do we need to consider when selecting the model?

Cloud Key Industrial Camera

1. Industrial camera type

According to the structural characteristics of the sensor,Industrial cameras are divided into two categories: surface array cameras and linear array cameras.The surface array camera has a high spatial resolution and is suitable for the acquisition and processing of two-dimensional images; while the linear array camera has a high scanning speed and is suitable for the acquisition and processing of one-dimensional images.

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2. Main performance parameters of industrial cameras

1, black and white/color

The camera with the same resolution has higher accuracy than color, especially when looking at the edges of the image, the black and white effect is better.Especially for image processing, black and white industrial cameras obtain grayscale information, which can be processed directly.

2, resolution calculation

In accordance with the required accuracy and field of view of the target, the pixel accuracy of the camera is instead introduced.Camera single-directional resolution=unidirectional field of view÷theoretical accuracy.At the same time, computing power needs to be considered. The resolution is too large and the frame rate is too high.cpucan't hold on.

333, pixel depth

The number of bits per pixel data is common to 8bit,10bit12bit.Resolution and pixel depth together determine the size of the image.Increasing pixel depth can enhance measurement accuracy, but at the same time it also reduces the speed of the system and increases the difficulty of system integration (cable increases, sizes, etc.).

444, high-speed motion capture requirements

There are often projects that need to capture high-speed moving objects, and images captured by ordinary industrial cameras will have problems affecting the quality of the image. When shooting images, the occurrence of image blur depends on the length of the exposure time and the movement speed of the object. If the exposure time is too long and the object moves too fast, the image blur will occur.

Global shutter should be selected when shooting objects as moving objects (Global shutter)style="font-family:安安">industrial cameras, and the frame rate is greater than the motion speed is required.

(1) Exposure time

Satisfies the speed of moving objectsVp*Exposure timeTs<permitted maximum smearS.To take pictures of objects with relatively fast motion speeds, a very short exposure time is required to prevent long shadows. It can be achieved by choosing an industrial camera with better photosensitiveness.

(2) frame rate indicator

frame rate means the number of images that the camera can capture per second, which is generally determined by the image size, exposure time, etc., and is an important indicator of the camera.The camera frame rate must be ensured that the two pictures with the shortest time interval required by the system must be captured. The time for processing images must be fast and must be completed within the exposure and transmission time of the camera. Otherwise, frame loss and other phenomena may be caused, and some products may be missed.

Select interface type

Common interface parameters are as follows:

Select interface type	USB2.0	USB3.0	GigE（千兆网）	Camera Link
Theoretical speed	480Mbps	5Gbps	1Gbps	5.4Gbps
Transmission distance	5m	3m	100m	10m

Selecting industrial cameras is a comprehensive consideration process that needs to be weighed based on actual application scenarios and needs.By clarifying application requirements, comparing product performance, considering cost factors, compatibility and scalability, you will be able to choose an industrial camera suitable for machine vision systems.When choosing an industrial camera brand, you should also consider whether to support customized development according to your needs, and provide SDK to facilitate secondary development and embed custom image processing programs.