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Precision is an important indicator of measuring instruments. In the flow measurement of time difference ultrasonic flowmeter, the error sources mainly come from the following aspects:
⑴ The influ...[Details]
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Central topics:
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Switching power supply
Causes of electromagnetic compatibility
* Key points of electromagnetic compatibility design of switching power supply
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The three-phase synchronous generator is driven by the prime mover to drive the DC-excited synchronous generator rotor, which rotates at a speed of n (rpm). According to the principle of electro...[Details]
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Description: This is a very simple and easy to build Class AB audio amplifier using four transistors. Each output device in Class AB operation conducts for more than half of the input signal cycle....[Details]
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Phillips-Medisize and Exact Sciences collaborate to fight colorectal cancer • End-to-end manufacturing ensures patient-centric product design, supply chain optimization and diversified production ...[Details]
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某小区的供热站，一台250kW的鼓风机向锅炉内吹煤粉。原来使用节风门调整鼓风机的风量，从而控制燃烧量。现在采取了变频器控制鼓风机，通过鼓风机的转速快慢来控制燃烧量。改造后，节电效果显著，但是却发现无功补偿装置中的保险频繁烧毁。希望解决这个问题。
This is because the inverter generates strong harmonic current emiss...[Details]
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Keith Jackson, president and CEO of ON Semiconductor and chairman of the Semiconductor Industry Association, recently wrote on Fortune.com that semiconductors are the engine of the global economy, bu...[Details]
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Are you looking for a vandal-resistant pushbutton switch that fits into tight space behind a panel?
WALTHAM, Mass. — October 28, 2021 — C&K, a leading manufacturer of high-quality el...[Details]
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Working principle of coating thickness gauge The coating thickness gauge irradiates X-rays on the sample and measures the thickness of metal films such as coatings by measuring the intensity of t...[Details]
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India's antitrust regulator in New Delhi is investigating Google for allegedly using its Android operating system to engage in unfair competition, the Wall Street Journal reported. The Competition Co...[Details]
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In DC to low frequency sensor signal conditioning applications, the common mode rejection ratio (CMRR) of the instrumentation amplifier alone is not enough to provide robust noise rejection in hars...[Details]
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BMW's smart driving has also become more powerful~
Recently, there is an exciting news from the automotive industry: BMW has been approved in Germany to equip the same model with L2+ int...[Details]
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For most single-chip microcomputer systems, due to the high speed of single-chip microcomputers, single-chip microcomputers have a lot of idle waiting time during operation. In some cases, the wait...[Details]
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Abstract: Based on the principle of real-time infrared thermal imaging system composed of PC and DSP digital signal processing board, the technology of data exchange between the host and DSP thr...[Details]
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The auto-coupling step-down starter is an electrical device used for motor starting. It reduces the starting current by reducing the voltage when the motor starts, thereby protecting the motor and ...[Details]
Analog electronics
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