Ultrasonic sensing uses the time of flight (TOF) of ultrasound waves in any liquid or gaseous medium and its dependence on flow velocity to measure and calculate volume flow. The technology exploits t...
The microstrip patch antenna is composed of a dielectric substrate, a floor, a patch conductor layer, etc., and is usually fed by a microstrip line (side feeding) or a coaxial line (back feeding). Thi...
Ultrasonic signal (1M) frequency and power control issues1. If the working frequency of the ultrasonic chip/ceramic chip is 1.7M, what methods are there to keep the frequency error at ±10%?2. By detec...
[i=s] This post was last edited by bqgup on 2021-8-23 19:43 [/i] #I'm addicted to C language! Please help me read "Number Processing and Judgment" ##Problem description##My code ``` cpp #include
#incl...
US media said that China has set up a new national semiconductor fund worth 204.15 billion yuan (about 28.9 billion US dollars). China is seeking to cultivate its own chip industry and narrow the tec...[Details]
The smart anti-shake spoon is mainly for Parkinson's patients. Parkinson's patients have numb hands and feet, tremors in their limbs, and their hands become uncontrollable. Eating, which is very ea...[Details]
As the global aging population grows rapidly, technology has great potential to care for older people.
Back in 1980, Sweden had the highest percentage of elderly people in the world at 16%...[Details]
Yesterday, a media reported that "a strange bug appeared in the calculators of many mobile phones. When calculating "10%+10%", the result was not 0.2, but 0.11. Many models including OPPO, Huawei, Ap...[Details]
The physical characteristics of non-minimum phase systems are: the step response in the initial stage in the time domain is negative, the system response is relatively slow, and it has an important...[Details]
introduction μC/OSII's ready table setting, clearing, and searching algorithms are highly efficient and cross-platform programs. It uses two search arrays, OSMapTbl and OSUnMapTbl , to increase the s...[Details]
On December 2-3, 2021, Dassault Systèmes held the "New Manufacturing and New Economy-2021 Dassault Systèmes Integration and Innovation Summit Forum" in Shenzhen. The forum aims to explore the deep in...[Details]
1 Introduction
The daily routines of government agencies and schools require timing and signal reminders. The author uses AT89C51 single-chip microcomputer and LM386 audio power amplifier ...[Details]
According to previous reports, Xiaomi will officially release the new generation of Mi Mix series flagship, Mi Mix 4, in Q3 this year. This will be the series' return after three years, and will cont...[Details]
0 Introduction
ZigBee technology is a short-range, low-rate wireless communication technology with unified technical standards. Its physical layer and media access control layer protocols ...[Details]
Whether it is a city CBD where giants gather, an entrepreneurial park in a non-prime area, or a skyscraper with a large number of residents, it is inevitable to meet with peers. Which company has new...[Details]
There are many factors that affect the life of LED lighting fixtures. In addition to the most common poor heat dissipation, according to application experience, the reasons for LED dead light or ...[Details]
Foremay
SSD
avalanche cascading secure deletion
includes rapid data clearing functions based on software, firmware, and hybrid software and hardware, as well as a thorough disk clean...[Details]
An oscilloscope is an electronic measuring instrument with a wide range of uses. As the saying goes, electricity is invisible and intangible. However, an oscilloscope can help us "see" electrical sig...[Details]
According to Reuters, on Monday local time, US President Trump held a meeting with the CEOs of seven companies, including Intel, Qualcomm, Google, Micron, Cisco, Broadcom and Western Digital, and agr...[Details]