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Exhalation valve air tightness tester 【Scope of application】 Used for air tightness testing of breathing valves of self-priming filtering anti-particulate respirators. Applicable to labor safety prot...[Details]
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The passband is used to measure the amplification ability of the amplifier circuit for signals of different frequencies. Due to the presence of reactive elements such as capacitors, inductors and j...[Details]
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On audio cablesIn the audio industry, in addition to the amplifier, speaker, sound source and other equipment, signal connection cables are also very particular. The price of each cable ranges from hu...[Details]
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RFID wristband portable medical device
Everyone probably has personal experience that it is very common to queue up for an appointment at a hospital. Waiting and anxiety are the most common e...[Details]
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On the morning of November 6, Baidu announced a new round of cadre promotions and rotations through internal emails: Li Zhenyu, the group’s senior vice president, will no longer serve as the head of ...[Details]
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What are MEMS?
MEMS is the abbreviation of Micro Electro Mechanical systems. Micro Electro Mechanical System (
MEMS
) technology is a cutting-edge technology in the 21st...[Details]
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Humans are visual animals, relying on their eyes to obtain visual information, identify direction and distance. When your car helps you drive, what are its "eyes"?
The answer is onboard ...[Details]
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For current devices such as smartphones, a single device can only capture images in a single dimension. In order to obtain photos taken from multiple angles, there is currently only a wide-angle mode...[Details]
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After the mmc upgrade, if the user uses the old image (code before May 2018), the mmc error and the system will fail to start. This is because there are several lines of code for determining the mmc ...[Details]
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Qualcomm President Amon said at a legal briefing on July 28 local time that TSMC and Samsung are strategic partners, but with the addition of Intel, Qualcomm's supply chain will be more flexible and ...[Details]
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The difference between ordinary functions and callback functions is that ST encapsulates interrupts and provides APIs to users, which are interrupt functions of the standard library. Calling a normal...[Details]
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1 Introduction
Integrated operational amplifiers are widely used in personal data assistants, communications, automotive electronics, audio products, instruments, sensors and other fields ...[Details]
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1 Introduction
As people need colored lights for house decoration, colored neon lights can be seen in many cities. LED colored lights have been widely used due to their rich light colors, lo...[Details]
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Use a used battery of about 0.3V to drive the LED light with a 40KHZ pulse. The cost is no more than 1 yuan! First, the production method and
circuit
diagram, then show the results~ The ste...[Details]
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RFMD recently launched a 65V 380W high-power discrete amplifier RF3928B, which is designed for S-band pulse radar, air traffic control and monitoring, and general broadband amplifier applications. Th...[Details]