该仪表租用链接:
http://picimg.lshou.com/pic/foshan.lshou.com/life/c859/t5ddebdb6ead5.html&scm=1007.11962.70328.100200300000000&pvid=ac6dd7bb-047a-4ff4-8b92-f217a6797d85&idnum=0
|
The Corentium Home by Airthings radon detector is a state-of-the-art measuring instrument that combines ease of use and performance. The Corentium Home by Airthings radon gas detector allows you to take a reading of the radon levels and its LCD screen displays the average daily, weekly and long term concentrations. Powered by 3 standard AAA batteries, the radon monitor makes it easy to take measurements from one room to another in order to get an overview of the concentrations of radon in a home, workplace, school, a daycare centre or any other location. The Corentium Home by Airthings radon detector is also an essential tool to use when performing property inspections or when checking the operation of a radon mitigation system. The internal architecture of the Corentium Home by Airthings radon monitor comes from advanced technology normally reserved for commercial-type detectors. Particular attention has been paid to the quality and protection of the internal components, allowing the use of algorithms for signal analysis that are more sophisticated. The Corentium Home by Airthings radon gas detector quickly adapts to its environment and eliminates inaccuracies related to external factors, allowing it to obtain the best accuracy in its niche. The Corentium Home by Airthings radon monitor is guaranteed for one year and in normal home use, it requires no annual calibrations throughout its useful life, estimated at over 10 years.
氡是一种放射性的惰性气体,无色无味。氡气在水泥、砂石、砖块中形成以后,一部分会释放到空气中,吸入人体后形成照射,破坏细胞结构分子。氡的α射线会致癌,WHO认定的19种致癌因素中,氡为其中之一,仅次于吸烟。氡主要来源于无机建材和地下地质构造的断裂。
The Corentium QRI is the newest and most advanced electronic radon gas detector.
The Corentium gives you the possibility to read the average radon level for 1 day, 7 days, and for one year, all at once. Being battery powered, the monitor can easily be moved to get the full overview of radon concentration in home, workplace, school or anywhere else. Compared to traditional technology, Corentium makes it much easier to identify room with higher radon concentration.
With an accuracy of ±5%, the Corentium is the most accurate electronic radon monitor for domestic use.
The detection of radon of the Corentium is based on the principle that radon gas diffuses into a detection chamber. When the radon atoms decay they emit energetic alpha particles. The alpha particles are detected by a silicon photo diode. Every alpha particle generates a small signal current when it hits the photo diode. By the use of a low-power amplifier stage the signal current is converted into a larger voltage signal. The maximum amplitude of the voltage signal is detected and sampled by an analog to digital converter (ADC). The amplitude is proportional to the energy of the alpha particle that hit the photo diode. The brain of the monitor is a micro-controller that registers the time and energy of every detected particle. This information is used to calculate the mean radon gas concentration for daily, weekly and yearly periods. This is all realized in electronic circuitry that in total only consumes a few microwatts of power, making the Corentium able to operate for almost 3 years on a single set of 3 small AAA alkaline batteries (included)