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Molten steel level is difficult to measure as a result of high-temperature medium and the covering flux. The characteristic of the steelmaking process is that a strong stratification of the temperature gradients is formed between different layers. Thus, temperature gradient is proposed as the principle for measuring the molten steel level. According to the new principle, a refractory material sensor...
In order to recognizing the feature of abnormality in advance and fix the possible dirty data simultaneously, this article proposed a method to construct a proper mode for a production process producing specific product, a method to estimate the stability of a linear process and a group of data cleaning rule. Both the data processing procedure and algorithm are given detailedly with some samples and...
The principle and structure of a 10 A high stable DC current source is described. Factors determining the current stability are analyzed and the crucial components including the voltage reference, sample resistor, error amplifier and regulator are elaborately selected to guarantee the current stability. Reasons for oscillation and frequency compensation methods are discussed. The best measurement...
Compared to other types of atomic clocks, spectral lamp-pumped Rb atomic clock offers the best combination of frequency stability, volume, weight, power consumption, price and robustness for many commercial and military applications. This advantage allowed accelerating greatly the development of state-of-the-art spectral lamp-pumped Rb atomic clock. The Rb atomic clock is widely used in satellite...
In order to precisely measure the displacement of the coil suspension system of the Joule Balance in the static state, we give a detailed analysis about its influence factors in this paper. We designed a dual-frequency laser interferometer system to measure the movement of the coil suspension in vertical direction. And a supporting device was designed to support the coil for the aim to make it more...
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