SK9901Q Measuring Reflection Parameters S11 Tutorial
2025.05.15
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Application of Lock-in Amplifier SE1201 in Absorption Spectroscopy
2025.03.12In August 2019, the team of Huang Yinbo and Cao Zhensong successfully used a self-built 3.66μm laser heterodyne radiometer in the Golmud area to obtain the absorption spectra of HDO and H2O in the atmosphere. The average columnar density during the experiment was 1.07 to 1.4g/cm2, and the HDO/H2O ratio in Golmud during the observation period was 163×10-6 to 193×10-6. During the spectral research process, the team of Huang Yinbo and Wu Pengfei optimized the altitude interval in the retrieval process based on the analysis of the altitude grid, and reduced redundant information through the refined altitude layer. At the same time, the study used reverse trajectory analysis to study the relationship between H2O (HDO) density and atmospheric motion, and based on the observation results, it was shown that the origin and path of the airflow can affect the H2O density and isotopic abundance.
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Protect safety, start with electromagnetic switch testing!
2025.02.25Insulation resistance testing is an important means of evaluating the insulation performance of electrical equipment. In the absence of magnetic field interference, it can accurately reflect the insulation status of the magnetic switch, ensuring that no electrical accidents will be caused by poor insulation during use, thereby ensuring the safety of personnel and equipment.
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High Temperature Dielectric Parameter Testing in Materials Research
2025.01.17Saluki's impedance analyzer supports system integration to meet the needs of customers for high-temperature dielectric measurement and curve analysis.
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Several common detection methods of spectrum analyzers
2024.12.20Common spectrum analyzers mainly use digital display. Each point on the display trace represents a frequency range. This frequency range is called a "bucket". We use some mathematical operations to extract the information data we want from this bucket, and then display the data on the display. Buckets include two concepts: "frequency" and "duration":
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A new solution to field effect transistor pairing test, STA999X series "Expert Mode" makes the problem curve clear at a glance!
2024.12.13In the field of semiconductor devices, field effect transistors (FETs) play an indispensable role in circuits with their unique conductive properties. The core of FETs is to use voltage to precisely control the flow of current, including the gate, source, and drain. It controls the charge density by changing the gate voltage field, and then adjusts the resistance to achieve precise control of the current.
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