Pet hospital DR instrument productionManufacturers believe that the mission of DR is to achieve revolution by changing the workflow of flat films on the premise of ensuring picture quality. The evaluation of user equipment should also be based on this, considering the maintainability, failure rate, price, overall cost, later cost and other practical factors of the equipment. As a system equipment, it needs to be evaluated as a whole and cannot be confused by a certain component, index or noun publicized by the manufacturer. It is necessary to comprehensively consider the image quality, work efficiency, use cost, after-sales service and other aspects of PLC maintenance.

　　Pet hospital DR instrument productionManufacturers believe that stable imaging quality is one of the original intentions of purchasing DR equipment, and it is also the material basis for improving the level of diagnosis and treatment. It involves the distortion, signal-to-noise ratio, resolution, clarity and detail display of the radiation image. It is mainly determined by flat panel technology, tube ray quality, computer and image software processing capabilities; among them, flat panel technology is the core factor (material type, effective size, pixel matrix, pixel size, grayscale, DQE, spatial resolution, stability, etc.

　　Pet hospital DR instrument productionManufacturers believe that reducing labor intensity and changing the popular workflow to improve is one of the main functions of DR and an important reference for purchasing such equipment. Involving dynamic range, imaging speed, data transmission/processing speed and other aspects. Because many unnecessary processes are omitted, the normal output rate should be 2 to 3 times that of the traditional net/glue system.

Pet hospital DR instrument manufacturers believe that the main cost of the DR system is the maintenance cost of the flat plate, the immaturity of amorphous selenium plate technology leads to high scrap rate and high maintenance cost, and the imaging time is also long, too much information is lost during the period, and the time cost is high.

Unlike the progressive digitization of CR, DR (Digital Radiography) is also called digital photography. Early DR uses a CCD (digital coupler) coupled with an intensifying screen and an optical lens to obtain a digitized X-ray image, somewhat similar to the way an image intensifier and a CCD work.

Pet hospital DR instrument manufacturers believe that the current widely used DR mainly uses flat panel detector (FPD) to scan and directly read out the image signal generated by X-ray. The imaging principle is that the X-ray signal is first converted into visible light, and the algae film layer (TFT) composed of photodiodes is gathered, and then directly read out by a special readout circuit and sent to a computer system for processing. The working principle. At present, there are two types of flat panel inspection ports: indirect conversion digital photography (IDDR) represented by amorphous silicon (a:Si CsI) and direct conversion digital photography (DDR) represented by amorphous selenium (a:Se). Amorphous silicon indirect conversion digital photographic flat working principle.

Pet hospital DR instrument manufacturers believe that the composition of DR generally includes high voltage generator, X-ray bulb and bracket, flat panel detector, system control port, etc. Compared with conventional X-ray signals, the advantages of DR system include the advantages of CR, a flat-panel detection X-ray receiving machine, which replaces the traditional sensitizing screen and film and realizes the digitization of X-ray signals. The dynamic range, spatial resolution and density resolution of the signal are high and further reduce the exposure agent.