Inspired by the fact that medical endoscope can detect human lesions without damage, industrial endoscope equipment came into being. The small insertion tube or probe penetrates into the interior of industrial equipment or pipeline, and the detection image is transmitted and output through optical path or digital signal cable and presented in front of the detection personnel, which realizes the extension of human eye sight and the change of visual direction, expands the application scope of visual detection, and helps the detection personnel faster More accurately find defects and damages inside equipment or pipelines. After these years of development, what are the characteristics of industrial endoscope equipment at this stage?

1.视频内窥镜日益普及

1. Video endoscopes are becoming more and more popular、

工业内窥镜的种类比较多样化。上个世纪90年代之前，直杆镜和光纤镜这两种光学内窥镜产品在航空航天等领域应用较多，但是后来数字化技术的发展推动了视频内窥镜的出现及应用，不仅可以实时观察，还可以拍照和录制视频，使得检测过程具有了可存储、可复现、可分享的特点，比光学内窥镜方便很多，因此现阶段视频内窥镜（电子内窥镜）是主流设备，应用比较广泛，很多企业在购买时都优先选择视频内窥镜。

The types of industrial endoscopes are diversified. Before the 1990s, straight rod endoscope and fiber optic endoscope were widely used in aerospace and other fields, but later the development of digital technology promoted the emergence and application of video endoscope, which can not only observe in real time, but also take photos and record video frequency, making the detection process storable, reproducible and shareable, It is much more convenient than optical endoscope. Therefore, at this stage, video endoscope (electronic endoscope) is the mainstream equipment and is widely used. Many enterprises give priority to video endoscope when purchasing.

2.缺陷测量技术得到重视

2. Attention has been paid to defect measurement technology

起初的工业内窥镜设备，主要用于查找设备或管道内部有无缺陷，后来随着检测水平的提升以及各行业安 全要求的提升，已经不再满足于定性判断，而是希望有确切的数据辅助分析设备状况，特别是对于处于临界状态的设备，因此缺陷测量技术逐渐得到了重视。现阶段很多内窥检测设备都具备缺陷测量能力，比较先进的是相位扫描三维立体测量技术，能够对裂纹长度、腐蚀坑深度、损伤面积等进行更为准确的测量。

At first, the industrial endoscope equipment was mainly used to find out whether there were defects in the equipment or pipeline. Later, with the improvement of the detection level and the safety requirements of various industries, it is no longer satisfied with qualitative judgment, but hopes to have accurate data to assist in the analysis of equipment conditions, especially for the equipment in critical state. Therefore, the defect measurement technology has been paid more and more attention. At present, many endoscopic inspection equipment have defect measurement ability. The more advanced is the phase scanning three-dimensional measurement technology, which can more accurately measure the crack length, corrosion pit depth and damage area.

3.一机多用更经济

3. One machine with multiple uses is more economical

对于内窥镜来说，一机多用的概念更多地体现在不同探头的复用上。通过更换探头技术，很多不同规格、不同用途的探头可以更换到同一台内窥镜设备上，也就是一台内窥镜设备可以根据现场需求换用不同的探头，例如：不同长度不同直径的探头、开展荧光检测的UV探头、可以夹取异物的机械手探头、带有打磨工具的探头、以及其他定制型探头等。对于用户来说，一方面扩展了设备的应用场景，另一方面也有助于控制成本。

For endoscopes, the concept of one machine with multiple functions is more reflected in the reuse of different probes. By replacing the probe technology, many probes of different specifications and different purposes can be replaced on the same endoscope equipment, that is, an endoscope equipment can be replaced with different probes according to the site requirements, such as probes with different lengths and diameters, UV probes for fluorescence detection, manipulator probes that can clamp foreign matters, probes with grinding tools And other custom probes. For users, on the one hand, it expands the application scenario of the device, on the other hand, it also helps to control the cost.

上面这些特点，在当今市场的很多工业内窥镜产品上都得以体现。例如：工业视频内窥镜是基于CCD成像的电子工业内窥镜，支持多种测量功能，而且也可以灵活更换不同的探头。

These characteristics are reflected in many industrial endoscope products in today's market. For example, industrial video endoscope is an electronic industrial endoscope based on CCD imaging. It supports a variety of measurement functions, and can also flexibly replace different probes.