Development Of Portable And Field Operation X-Ray Equipment With High Frequency

Since Roentgen discovered the X-ray and firstly used in the clinic diagnoses, the development of the medicine has come into an new era. The X-ray equipment has gone through the periods of electron tube, integration circuit and computer during these 100 years. Now it comes into the digital network era, in which traditional X-ray equipments are being replaced by CR and DR. The technology of X-ray equipment is getting progresses from working frequency to middle frequency(400-20KHz) and High Frequency (more than 30KHz). The development of the future X-ray equipment is mainly about three aspects as follows:1. Improve the quality of the X-ray image2. Diminish the X-ray irradiation exposure of doctors and patients3. Realize the automation of the operation and the diagnosesThis thesis is about the design and the research of a new type of X-rayequipment-high frequency(HF), portable and field operation X-rayequipment, which uses the technology of HF and microcomputer. Compared with the traditional x-ray equipment, it has many new functions such as the self-motion exposal, real-time inspecting control and the display of the measure, the alarm of the failure, the automatic disposal. With the advanced technology, it has overcome the deficiencies of the traditional X-ray equipment ,including overweight, big bulk, importable. Equipped with the mobile portable shelf, it is more fit for filed operations .There are following characteristics:1. HF and HV(high voltage) x-ray generator2. High precision PWM control mode by the analog and digital double-loop control3. High precision control of the tube current4. Self-protection and self-diagnoses of the failure...