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The moisture resistance microbial penetration tester is used to measure the material's resistance to the penetration of bacteria in liquids when subjected to mechanical friction (the shielding perfor...[Details]
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Among the existing oil storage tanks of Karamay Petrochemical Company, more than 2/3 were built before 1990. According to statistics, there were 9 oil storage tank failure accidents caused by corrosio...[Details]
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According to Jiwei.com, on April 19, Huazheng New Materials released its first quarter report of 2021, achieving operating income of 770 million yuan, a year-on-year increase of 86.91%, mainly due to...[Details]
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In the process of circuit debugging, some engineers usually need to use probes to lead the measured signal to the channel of the oscilloscope. In the process of using probes to detect signals, ...[Details]
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BLDC six-step driving principle
The six-step drive method of BLDC (brushless DC) motor is a common control method used to control the speed and direction of BLDC motor. The principle is as fol...[Details]
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1 Introduction The shunt active power filter (SAPF) is an important device for dynamically compensating harmonics and reactive power in three-phase power systems. Since the harmonic current compo...[Details]
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In the past few years, executives of many global automobile manufacturers, represented by Tesla CEO Musk, have made their own assisted driving technology ( ADAS ) miraculous. However, in reality, acc...[Details]
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China Energy Storage Network News:
Professor Zhang Xiaoping, head of smart grid at the Energy Research Institute of the University of Birmingham, UK, recently said in an exclusive interview w...[Details]
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(Photo source: Wollongong official website) According to foreign media reports, Australian scientists have developed a non-flammable electrolyte that can be used in potassium and potassium-ion bat...[Details]
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1. Stepper Motor Concept 1. Stepper motor concept A stepper motor is an open-loop control motor that converts electrical pulse signals into angular displacement or linear displacement, also known as ...[Details]
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Introduction: This paper designs an offshore liquid level measurement system based on AT89S51 single chip microcomputer. The system adopts the principle of segmented capacitance detection to realize ...[Details]
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In mobile phones and other mobile devices, white LEDs can provide perfect backlighting effects for small-sized color screens. However, most mobile phones are powered by a single lithium battery, which...[Details]
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In order to prevent the PCB from deforming as much as possible during soldering, most PCB manufacturers will require PCB designers to fill the empty areas of the PCB with copper foil or grid-shaped g...[Details]
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1.
Characteristics of
LED light source
(1) Voltage:
LEDs
use a low voltage
power supply
, the supply voltage is between 6-24V, which varies according to the product, so it is a...[Details]
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Source: Getty Images Plus
Enerchain Intelligent Electric, a Chinese electric vehicle charging service company listed in the United States, announced in a press release on October 10 that...[Details]