laitimes

Daily popular science || How much do you know about measurement in the Winter Olympics?

The 2022 Beijing Winter Olympic and Paralympic Winter Games are major landmark events at important historical nodes in the mainland, and an important opportunity to show the national image, promote national development and invigorate the national spirit. The concept of the Science and Technology Olympic Games runs through the entire process of the Beijing Winter Olympic Games, in which measurement science and technology play an important role in the basic guarantee. It can be said that in the process of the Winter Olympic Games, accurate measurement is needed at all times.

Sports venues and their facilities need to monitor their temperature, humidity, wind speed, lighting, electromagnetic interference, etc., to ensure that the monitoring data is accurate and reliable.

Daily popular science || How much do you know about measurement in the Winter Olympics?

For example, the temperature requirements of the curling arena are very strict, the ice surface temperature is required to be minus 6 ° C, and the ice temperature of the curling field will directly affect the friction coefficient between curling and ice, thereby affecting the competition performance. In order to perceive the temperature changes of the venue in real time, the ice body of the curling track of the "Water Cube", one of the Beijing Winter Olympic Games, was laid as a whole with optical fiber temperature sensors, connected to the distributed optical fiber temperature monitor, and continuously monitored the temperature of the curling track in space and time, ensuring accurate temperature measurement and providing data reference for site maintenance.

Daily popular science || How much do you know about measurement in the Winter Olympics?

Athletes' training and competition need to monitor their physical function status, and accurate monitoring data will effectively guide training and competition.

For example, the physical function state of athletes is the basis of scientific training and the key to determining the level of competition. To develop a scientific and reasonable training and competition strategy, it is necessary to accurately and timely understand the physical function state of athletes. Blood lactate produced during exercise will lead to a decrease in exercise ability and exercise fatigue, often measured in training can understand the characteristics of lactic acid production and metabolic changes in the body, as the basis for mastering exercise intensity in training and evaluating the athlete's ability to anaerobic metabolism and aerobic metabolism. In order to obtain timely information on the physical function status of athletes, especially in the field situation, the accurate determination of the above biochemical indicators is particularly important. At present, the blood lactate is mainly detected by portable lactate analyzers, etc., and the accuracy of the results of these portable biochemical index detection equipment directly determines the accurate judgment of the athlete's physical function state, thus affecting the athlete's training effect and the performance of the event.

Daily popular science || How much do you know about measurement in the Winter Olympics?
Daily popular science || How much do you know about measurement in the Winter Olympics?

Olympic food safety, doping testing, nucleic acid detection of the new crown virus, and environmental monitoring of venues are inseparable from the escort of reference materials.

For example, in sports competitions, athletes found to be doping are disqualified or even banned. Therefore, it is very important to conduct highly sensitive detection of exogenous stimulants for Olympic food, which requires high purity, high stability and consistent and reliable reference materials, reduces the potential error of artificial preparation of mixed standard solutions, and ensures the validity and accuracy of doping test data.

Daily popular science || How much do you know about measurement in the Winter Olympics?
Daily popular science || How much do you know about measurement in the Winter Olympics?

As the Countdown to the Beijing Winter Olympics, the State Administration for Market Regulation has actively done a good job in various measurement guarantees, issued documents and deployed relevant market supervision departments and measurement technology institutions to do a good job in epidemic prevention and control to ensure the safety of the event. The Chinese Academy of Metrology carries out distributed optical fiber temperature monitors for curling venues, measurement and calibration of portable biochemical index testing equipment for athletes, verification of the ability of the Winter Olympic Food Security Laboratory and rapid and sensitive detection of microbial contamination in the food of the Winter Olympic Games, etc., carries out air quality monitoring and guarantee during the Winter Olympic Games with the China Environmental Monitoring Station, and provides stimulant mixed solution reference materials for the Beijing Winter Olympic Organizing Committee. Beijing Institute of Metrology and Testing successfully completed the testing and evaluation task of the new coronavirus aerosol monitoring equipment for the Beijing Winter Olympic Venues. The Beijing Municipal and Hebei Provincial Market Supervision Bureaus have opened up green channels to provide measurement verification and calibration services for the human temperature measurement equipment installed and used in the airports, stations and other transportation hubs involved in the Winter Olympic Games, as well as the human body temperature measurement equipment installed and used in public places such as competition venues and Olympic villages, to ensure that the measurement data of the temperature measurement equipment is accurate and reliable. Since July 2021, a total of 26,600 units of various types of temperature measurement equipment and other measuring instruments in use such as medical and health have been verified and calibrated, 91 measurement technical services have been provided, and 3,585 publicity materials have been distributed.

Daily popular science || How much do you know about measurement in the Winter Olympics?
Daily popular science || How much do you know about measurement in the Winter Olympics?
Daily popular science || How much do you know about measurement in the Winter Olympics?

Source: State Administration for Market Regulation