The working principle and features of nuclear radiation material level meter

Abstract: the working principle and features of nuclear radiation material level meter information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. As long as know the ultrasonic velocity in the medium, can according to the travel time to determine the level. But sound and medium composition, temperature and pressure factors, therefore, it is hard to sound velocity as a constant. General Settings. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the working principle and features of nuclear radiation material level meter article details. As long as know the ultrasonic velocity in the medium, can according to the travel time to determine the level. But sound and medium composition, temperature and pressure factors, therefore, it is hard to sound velocity as a constant. Generally want to use the method of setting correction with the sound velocity correction. The so-called correction with is apart in guide acoustic medium so installing a fixed distance by ultrasonic probe ( Probe correction) And reflection plate composed of measuring device, as shown in figure 5 - 30. For liquid medium ultrasonic liquid level meter, the correction should be installed in the liquid medium of zui below, in order to avoid the influence of liquid surface reflection waves, in the same way, for gas medium ultrasonic level meter, the correction should be installed at the top of the container of gas medium. If the ultrasonic pulse probe launched after ~ time to return to the probe, a total of 2 sq distance calibration period, then the actual sound as if measuring section velocity & bdquo; And period of sound velocity correction is equal, depending on the type available: clearly visible from the type, liquid level measurement is good to measure time t, t0 when measuring sound velocity along the height direction is different, such as uneven distribution of medium density along the height direction or a temperature gradient, can use the float arm type sound velocity correction. The school are connecting with the top of a float, the bottom is equipped with a shaft, make the correction with the position of the baffle plate lifting with liquid level change, make correction probe and measuring probe of transmit and receive ultrasonic passes through the liquid state, to eliminate the error due to the difference of velocity. Ultrasonic level measurement of the measurement range can be an order of magnitude from mm to tens of meters. Accuracy in without correction with 1%, after add correction with 0. 1%. Nuclei in the nuclear decay of radioactive isotopes in the release of a certain energy of particles or radiation phenomenon known as radiation. The radiation emitted rays, 0, 7 three. Among them a ray by positively charged O; Particles & rsquo; P rays is composed of negatively charged particles 0, 7 ray composed of neutral photon. Currently used in the material level measurement equipments in radiation source ( Or source) Such as cobalt c60Q and cesium cf7 radioactive isotopes. The two isotopes emit strong y ray, and the half-life ( The intensity of the radiation source to the time required for half of the original) Is longer than the other. Such as the half-life of cobalt C6 ^ 5. 3 years, cesium cf7 has a half-life of 33 years. Seven rays with 0: rays, and 0 rays, compared to the absorption of the material smaller, can through the dozens of centimeters thick steel plate or other solid matter, so the seven rays more application in the material level detection. When the rays pass through matter, they will be the material of atomic scattering and absorption loss energy. After ray through the physical, the energy intensity with the thickness of material layer exponential attenuation law, can be represented as type, ray before/G to shoot medium intensity; / after through the medium of radiation intensity; As A medium for ray absorption coefficient; H is the thickness of the medium. Radioactive sources when selected, the medium to be measured is known, and / / 0 as the fixed value, the medium thickness / / and after through the medium of radiation intensity can be expressed as the relationship between thus, as long as you can after sensing through the medium of radiation intensity /, then the thickness of medium level F can be calculated. Different medium's capacity to absorb radiation is different, solid strong absorptive capacity zui, liquid, gas zui weak. Nuclear and radiation type material level meter from the source, receiver and display instrument of three parts, the principle block diagram is shown in figure 5 - 32. Source and receiver are placed on both sides of container under test ( Measuring the scene) , can display instrument in the control room. By the ray intensity on the release of radioactive sources for / 0, through the container and the measured medium, by the detector, and to detect the intensity/converted to electrical signals, after the amplifier amplification into display instrument for display. Industrial nuclear instrument commonly used gamma ray detector has scintillation detector, ionization chamber detector and a geiger counter, etc. Scintillation detector of the detection efficiency is high, can reduce the intensity of meter source, its working life is longer, up to several years; Defect is high cost, stability is a bit poor, poor vibration resistance. Can be made according to the principle of radiation detection thickness gauge, level gauge, and density meter, etc. , can also be used to measure gas pressure, the analysis of material composition and nondestructive flaw detection, a wide range of applications. In the application of radioactive isotopes, y rays, the application of material level meter long and more.

Beijing Sincerity Automatic Equipment Co., Ltd have expanded from facilitating conversation and collaboration in the identity industry to providing strategy consulting services, research, analytics and education.

Providing highly qualified mass flow meter products and services, Beijing Sincerity Automatic Equipment Co., Ltd is committed to helping clients make lasting improvements to their performance and realize their most important goals. Over the past decades, we’ve built a firm uniquely equipped to this task. Go to Sincerity Flow Meter for more info.

Undoubtedly, mass flow meter are made with advanced equipment.

Always put quality over cost is the rule of thumb if you want to buy a really durable and reliable . But with Beijing Sincerity Automatic Equipment Co., Ltd, you can have the same.

Through our distribution and marketing competencies, Beijing Sincerity Automatic Equipment Co., Ltd provides creative, customized, solutions for our customers. As a result, we achieve superior profit growth as the mass flow meter company of choice.