Choosing an industrial camera for photographing the surface of a rotating screw rotor at high speeds

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Industrial cameras are different from the cameras on our mobile phones or our SLR cameras, industrial cameras can use a variety of harsh working environments, such as high temperature, high pressure, high dust, etc. Industrial cameras mainly include area scan cameras and line scan cameras, line scan cameras are mainly used for detection of scenes with high accuracy requirements and fast movement speed, while area scan cameras are more widely used. To learn more about industrial cameras, you can learn more about industrial cameras through the official WeChat platform (WeChat***:

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It is necessary to determine the width of the target field of view and the accuracy of shooting.

You can directly log in to the machine vision product information query platform.

Use the Product Selector.

Enter the above two values to calculate the industrial camera model that meets your needs.

TEO Dior Technology represents the selection parameters of 3 million industrial cameras.

1. Lens mount and maximum CCD size.

As long as the lens interface can be matched with the camera interface, it can be matched and installed through the external conversion port, and the lens can support the largest CCD size, and should be greater than or equal to the size of the optional camera CCD chip.

Second, the focal length of the lens.

Once you know the camera CCD size, working distance, and field of view, you can calculate the focal length of the lens you need.

3. Lens aperture.

The brightness of the image is usually determined by the size of the lens aperture, if it is used in a relatively short environment, or when shooting high-speed moving objects, you should choose a large aperture lens, which can improve the brightness of the image.

To do image processing, the object of processing is the image from the industrial camera, so the selection of the industrial camera is an indispensable and very important step.

The first thing to understand is your own inspection task, whether it is static or dynamic photography, how often to take pictures, whether to do defect detection or size measurement or positioning, what is the size (field of view) of the product, how much accuracy needs to be achieved, the performance of the software used, what is the on-site environment, whether there are other special requirements, etc. If it is a dynamic photo, what is the speed of the movement, and according to the speed of the movement, choose the minimum ** time and whether the camera needs to be scanned progressively; The frame rate of the camera (the highest photo frequency) is related to pixels, usually the higher the resolution, the lower the frame rate, and the frame rate of different brands of industrial cameras is slightly different; Depending on the inspection task, the size of the product, the resolution to be achieved and the performance of the software used, the resolution of the required industrial camera can be calculated. The most important considerations for the field environment are temperature, humidity, interference and lighting conditions to choose different industrial cameras.

Industrial cameras must have both high resolution and sufficient bytes per pixel, and may also require color imaging capabilities. Non-contact measurement calculates the number of pixels occupied by an object and converts the counting results into dimensional values. Such a system may require high resolution, and the number of bytes per pixel requirement may not have to be too high.

Image processors typically only extract information about the edges or contours of an image, so they generally do not have high dynamic range and color capability requirements. There are a variety of requirements for object recognition and localization. In many cases, image processing systems search through images to identify datum features.

The question is too general. What to do with an industrial camera? What to shoot? Fixed or handheld? Always shooting or timed or manual? What is the installation and use environment? What are the requirements for the format, accuracy, and format of the image?

The key points of industrial camera selection should be able to adapt to the needs of the work, and be able to shoot some special scenes in the workplace, such as high temperature and high pressure steam conditions.

You also need to choose the camera to ensure safety.

High-speed camera, the first choice of Ketianjian! Reliable!

1. Area scan CCD industrial camera:

Allows the photographer to shoot a moving object at any shutter speed.

2. Line scan CCD industrial camera:

Scan with a row of pixels, do it three times – corresponding to the red, green, and blue filters, and as the name suggests, the linear sensor captures a one-dimensional image. Initially used in the advertising industry to shoot still images, linear arrays, and high-resolution images that were confined to non-moving, continuously lit objects.

3. Three-wire sensor CCD industrial camera:

In a three-line sensor, three parallel rows of pixels are overlaid with an RGB filter, and when capturing color, the complete color is made up of multiple rows of pixels. Trilinear CCD sensors are mostly used in high-end digital cameras to produce high resolution and spectral color levels.

4. Interleaved transmission CCD industrial camera:

This sensor utilizes a separate array to capture the image and convert the battery, allowing the current image to be read while the next image is taken. Interleaved transmission CCDs are commonly used in low-end digital cameras, camcorders, and broadcast cameras that shoot animations.

5. Full-frame CCD industrial camera:

This CCD has more power handling, better dynamic range, low noise and transmission optical resolution, and the full-frame CCD allows for instant full-color shooting**. A full-frame CCD consists of a parallel floating-point register, a serial floating-point register, and a signal output amplifier.

Teo Dior Technologies industrial cameras can.

A typical industrial machine vision system comprises: camera, lens, light source, image processing unit (or image grabber), image processing software, trigger module, communication input and output unit and other parts. Each part cooperates with each other to finally complete its inspection requirements.

1.Camera lenses.

2.Light source. 3.The object to be measured.

4.Sensor.

5.Electronic control system.

6.Visual Image Processor.

1. The image sensor of the industrial camera is progressive scanning, while the image sensor of the civil camera is interlaced, and the production process of the progressive scanning image sensor is relatively complex, the yield is low, and the shipment is small.

2. The frame rate of industrial cameras is much higher than that of ordinary cameras. Depending on the camera resolution, industrial cameras can shoot from a few to hundreds, or even thousands, per second.

3. Industrial cameras usually output raw data, and their spectral range is often wide, which is more suitable for high-quality image processing algorithms, such as machine vision applications.

TEO industrial cameras.

The parameters and selection are:

1.focal length: The focal length is the distance between the center point of the lens and the clear image formed on the glue plane. The size of the focal length determines the size of the viewing angle, the small value of the focal length, the large angle of view, and the large range of observation; The focal length value is large, the angle of view is small, and the viewing range is small.

According to whether the focal length can be adjusted, it can be divided into two categories: fixed focal length lens and zoom lens.

2.Aperture (IRIS).

Expressed by f, it is measured as the ratio of the focal length f of the lens to the clear aperture d. Each lens is marked with a maximum f-number, e.g. 8mm for a maximum aperture of mm. The smaller the f-number, the larger the aperture, and the larger the f-number, the smaller the aperture.

3.Compatible with the maximum CCD size (sensor size).

The maximum CCD sensor size that can be covered by the lens imaging diameter. There are mainly and 1 above.

4.Interface

How the lens is connected to the camera. Commonly used ones include C, CS, F, V, T2, Leica, M42X1, etc.

5.Depth of Field (DOF).

Depth of field refers to the extent to which the image of the subject remains clear within a certain distance before and after the subject is in focus. The depth of field varies depending on the aperture value, focal length, and shooting distance of the lens. The larger the aperture, the smaller the depth of field; The smaller the aperture, the greater the depth of field.

The longer the focal length, the smaller the depth of field; The shorter the focal length, the greater the depth of field. The closer you get to the subject, the smaller the depth of field; The farther away from the camera subject, the greater the depth of field.

6.Resolution

Resolution represents the ability of a lens to record the details of an object, measured in terms of the number of black and white lines that can be resolved per millimeter: "line to millimeter" (lp mm). The higher the resolution, the clearer the image. Corruption.