Recently, new progress has been made in drilling in China. Songke Erjing drilled on April 13, 2014. It lasted more than four years, drilling a total depth of 7,018 meters, and becoming the deepest deep-sea drilling in continental countries and international continental scientific drilling. The plan (ICDP) was established in the 22nd year as the deepest drilling, and it is also the world's first scientific drilling well that penetrated the Cretaceous terrestrial formation. Great achievements have been made for petroleum exploration and address research.
Drilling is composed of many important parts. Among them, steel wire rope is also one of the important components. Steel wire is an important part of steel wire rope. The quality of steel wire determines the quality of steel wire rope. The quality of steel wire rope guarantees the safety and therefore the steel wire production. In the middle, it is very important to carry out high-precision inspection of its outer diameter. The lower the nominal tensile strength of steel wire ropes in the same diameter, the more wires in each strand, the finer the wire diameter, the better the rope's flexibility, but The wire rope is easy to wear. Conversely, the thicker the wire diameter in each rope, the poorer the wire rope flexibility, the wire rope wear resistance. Therefore, different types of wire rope, its use of the range is also different. The wire diameter size is more uniform in each part, The better the accuracy, the better it can play a greater role. Photoelectric wire diameter measuring instrument is an on-line real-time testing equipment, using high-performance linear array CCD measurement, measurement accuracy can reach micron level, suitable for online automatic detection of wire size.
1, intake module
The image acquisition module includes the following components: Linear array CCD, optical lens, where linear array CCD is a high frequency linear array CCD chip with scanning frequency of 15MHz.
2, transmission module
The transmission module is composed of data acquisition conversion processing integrated circuit, data acquisition storage unit, data analysis processing unit, array form conversion unit, communication transmission unit, etc.
3, image processing module
The transmitted data stream is processed as follows:
Image denoising, binarization processing, reading the number of pixels, obtaining the diameter etc. by calculation formula.
4, image output module
Complete the real-time output of the image, the real-time output of the result, can transmit the measurement data to the display screen, external display screen, alarm module, size control module, etc.
5, diameter measuring instrument technology
In addition to the signal acquisition circuit in the receiver lens, there are also some caliper circuit systems made up of electronic components and communication equipment. These mainly include a DC power supply, a constant current power supply for the light source, and a CCD acquisition circuit. Power supply constant voltage power supply, light source power supply and signal acquisition synchronization circuit, timing generation circuit, signal acquisition synchronization circuit, optical fiber transceiver, etc.
The CCD technology for dimension measurement is a very effective non-contact detection technology. Various linear array CCDs can be used for size measurement. CCD photoelectric size measurement consists of CCD image sensor, optical system, computer data acquisition and processing system. instrument Its scope of use and superiority are the existing mechanical, optical, electromagnetic measuring instruments are unmatched. This and the CCD itself has high resolution, high sensitivity, strong pixel position information, compact structure and self-scanning The characteristics are closely related. This detection method has been widely applied to the on-line detection of various workpieces and the high-precision, high-speed detection technology field. The diameter of the steel wire is measured in micron and high-precision, and the quality of the steel wire is strictly enforced. Check, and bring a great safety guarantee for the application of steel wire.
Accurate measurement of the steel wire by the photocathograph can improve the quality of the wire rope, improve the safety of the operators, and improve the quality of the drilling. We will also develop better measuring equipment. The photometer can not only measure the wire diameter , The wire, cable, electronic wire, and steel bars required for drilling can all be measured, so that the quality of drilling can be improved.
This article consists of Baoding Lanpeng Measurement & Control Technology Co., Ltd. write
