Infrared Sensor ZTP-135SR and Its Application in Infrared Body Temperature Measurement / 中国医疗器械杂志

Body temperature is an essential physiological parameter. Conducting non-contact, fast and accurate measurement of temperature is increasing important under the background of COVID-19. The study introduces an infrared temperature measurement system based on the thermopile infrared temperature sensor ZTP-135SR. Extracting original temperature date of sensor, post-amplification and filter processing have been performed to ensure accuracy of the system. In addition, the temperature data of environmental compensation which obtained by polynomial fitting is added to the system to further improve measurement accuracy.

Design on disinfection system for the pipeline of dialysis water based on temperature control / 中国医学装备

Objective: To design a disinfection system for pipeline of dialysis water that can be automatically controlled so as to improve the disinfection effect, and ensure the health and safety of the operators and patients with hemodialysis. Methods: In the new disinfection system, the manual control was changed to single chip, and the disinfection method was ozone disinfection. In the actual ozone disinfection instrument for the pipeline of dialysis water, through the relationship among solubility, half-life period and temperature of underwater ozone to obtain a simulate relational expression between disinfection time and temperature, and then through single chip to achieve automatic control of disinfection process. Results: Through experimental verification, the system was able to coordinately complete automatic disinfection, emptying and swashing, and the concentration of ozone could meet the requirements of setting. Conclusion: The design can effectively disinfect the pipeline of dialysis water and avoid harm for human body in operation. And the added functions, automatic emptying and swashing, can ensure the pipeline of dialysis water is applied in dialysis cure as soon as possible after the disinfection was completed, and it guarantee the safety of hemodialysis.

The study of cooling control system of the CT bulb tube intelligent closed loop / 中国医学装备

Objective:To improve the CT bulb tube cooling rate and the testing method of the CT bulb tube temperature, and provide more stable platform for better bulb tube protection and longer life-span. Methods: The designed specified cold air machine could transfer the dry cold wind into machine rack, which can lower the ambient temperature of the machine rack and increase the air flow inside the machine rack and promote the efficiency of the heat exchange of the bulb tube oil cooling circuit. Results:the design of this system’s joint is light and handy, which could collect the instantaneous temperature change of the bulb tube, and carry out simple man-machine interaction monitoring. Conclusion:According to the bulb tube oil-way temperature and ambient temperature and relative humidity, the computer can dynamically adjust the refrigerating capacity and operation/cease of the air cooler. Then it can constitute the closed control loop, and accelerate the efficiency of the bulb tube’s heat dissipation, and promote the heat capacity of the bulb tube equivalently.

Design and implementation of temperature control system of high fever / 中国医学装备

Objective: To cool down the implementation of field training injury cold and heat function of electric control part. Methods:To design of peripheral control circuit, the use of STM32 microcontroller software compiled program, temperature control function of the whole device. Results: Though the program running, it realized the function of temperature control device. Conclusion:STM32 MCU has powerful functions, low price, simple use, convenient development advantages, suitable for use in other medical equipment electrical control part.

Heatstroke prediction machine for single soldier / 医疗卫生装备

The heatstroke prediction machine for single soldier is used to monitor body temperature.It can connect with three temperature sensors and transform the temperature of three spots on body surface into electric potential which is linear compensated,magnified and then samplinged by the singlechip.The liquid crystal display shows the temperature of three spots on body surface and the corresponding temperature of anus in turn.With the function of bady temperature alarm and alarm initialization,it becomes a new equipment to monitor body state of the single solider in tropic war zone.

The Design of the control system of radiating therapeutic instrument / 医疗卫生装备

The control system of radiating therapeutic instrument, powerful and reliable, is designed with the new chips of P89LPC669 and MAX669. Its hardware organization, system function and software framework are introduced in this paper.