As shown in the picture, RPR220 is a reflective infrared pair tube. By changing the values of two resistors, its maximum operating distance is 5cm. Is there any way to further increase it to 10cm?...
HOHO It happened that the company won two prizes during the Christmas draw and I was going to take my wife to see it: lol Because it is the most expensive...
After returning home, I spent the whole day visiting relatives and friends, and didn't take many photos. Let me talk about my hometown - Guilin. As one of the sub-venues of the Spring Festival Gala,So...
[i=s]This post was last edited by qwqwqw2088 on 2014-12-15 16:29[/i] [p=19, null, left][size=13px]The latest masterpiece "Hello, Amplifier" by Yang Jianguo, a well-known professor at Xi'an Jiaotong Un...
Now I have two questions. One of them has a solution process, but there are some parts that I don't understand, so I would like to ask an expert for help. I don't know how to solve the other question:...
1 Introduction
With the acceleration of the pace of urban modernization, society has higher requirements for urban road lighting and urban lighting projects. The state has clearly required tha...[Details]
This week, Microsoft held its 2012 Microsoft Worldwide Partner Conference (WPC) in Toronto, Canada. At the conference, Microsoft showed its new products and services to partners around the world. A...[Details]
1. Proposal of
reconfigurable
measurement and control system
The measurement and control system generally refers to a system based on
computers
to realize data acquisition a...[Details]
A stepper motor is an electromagnetic mechanical device that converts an electrical pulse signal into an angular displacement or a linear displacement. The stability and reliability of a stepper mo...[Details]
summary
This article will briefly analyze the success and shortcomings of high-frequency DC-DC switching power supplies in the process of miniaturization (the second basic goal), and propose m...[Details]
1 Introduction
At present, advocating health has become the focus of people's attention, and the emergence of treadmills has become more and more popular. People can exercise at home or in the ...[Details]
Infrared remote control is widely used in home appliances, but the remote controls produced are not compatible with each other. The universal remote controls commonly seen on the market can only co...[Details]
Li/SOCl2 batteries (lithium sub-cells) have the advantages of high operating voltage, stable discharge voltage, wide operating temperature range and long storage life, and have been widely used in ...[Details]
The Challenge:
Improving Siemens Wind
Turbine Controls
System software automated testing for regular releases, validating wind turbine control system components during the developme...[Details]
1 Introduction
The coke oven gas recovery system is mainly composed of a gas tank and a pressure reducing station. While realizing the recycling and reuse of coke oven gas, it also plays an imp...[Details]
●Try to use original batteries
Using original batteries is the most important thing to ensure your safety. Nokia once claimed that there have been more than 20 mobile phone battery explosi...[Details]
Lithium-ion battery name introduction
The lithium-ion battery that is now widely used by everyone is developed from the lithium battery. So before we get to know the lithium-ion battery, l...[Details]
Power quality refers to the quality of AC power supplied to the user end through the public power grid. In an ideal state, the public power grid should supply power to users at a constant frequency...[Details]
Facility cultivation technology mainly refers to the technology of using ordinary greenhouses or greenhouses to produce crops such as vegetables and fruits. With the popularization of facility cultiva...[Details]
Automobile testing is an important means to discover various problems in automobile design and development. Based on the test results, an objective evaluation of various automobile performances can...[Details]
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