With the Dell XPS micro-border display exclusive period expires, so this year the beginning of the notebook computer industry will follow the trend of the mobile terminal large screen, one after another increased the variety of notebook computer models with a narrow border display. When it comes to the XPS series, it really loves and hates it. The visual effect of the narrow border is indeed very good, and the overall degree of hardware integration is also very rare in the PC camp, but the price is probably the price of hate, the price of the National Bank is generally 7K Above, Hai Tao is a little cheaper, but it also requires 5K+ procedures and waiting, so it is really embarrassing to have a friend budget in more than 5K, and the XPS13 panel color gamut shrinks. . . It makes people even more speechless. Recently discovered the accidental Lenovo Yangtian V720 this ultrabook, after a period of testing makes me feel it may be able to replace the XPS13 to become a PC camp super new choice.
XPS13's success, apart from the extremely eye-catching screen, its excellent screen quality, performance platform, endurance performance, or high-precision touch screen are all inseparable, and the same conditions also appear to Yangtian V720 14 body, and it also It's cheaper, so it really made me surprised.
Yang-day V720 total 12-inch and 14-inch two models, this evaluation of Yang Tian V720 14 platform is mainly divided into I5/I7 two configuration versions, other hardware main body is basically the same (screen and other accessories), subdivision is nothing more than hard disk, memory Size and capacity vary. I got the I7 with a high allocation, before looking at the price is more than 6K, this 1-2 days JD there is a lot of high prices, but 618 you know, it is estimated that the most practical I5 match (8G, 256G ) More than 5K can be done, and this price segment is just a lot of people's budget space.
Although all of them are PCs, compared to desktops, notebooks use some of their specifications to evaluate their performance. Therefore, from this time onwards, individuals will also use intuitive experience to evaluate notebooks, such as ultra-poles. Life is an important factor in this article, but 3D performance is crucial for gaming.
I concisely say that the days of the V720's hardware design, 3 magnesium alloy and 1.32kg ultra-pole weight settings, 14-inch screen to benefit from the micro-frame settings, the whole machine is probably the traditional 13-inch ultra-thin The size of the exterior looks more like its own little new series, the appearance is a bit utterly impressive, but the work benefits from the brand size, so there will be no cut-off or larger gaps.
The only accessory is this power supply, but still hope that Lenovo will focus on designing a power supply with better storage attributes. Now the PC camp is the most missing power supply with a good design (compact, compact, and portable).
Lenovo has a ridiculous dedication to 180° opening and closing, so the V720 has been designed for the flip axis to achieve a 180° opening and closing angle. This is basically an office scene that will increase the convenience of use in practical use (such as small meetings. Case presentations, etc.) Of course, this design would be better with a touch screen, but the V720 has only one screen scheme and no touch screen option.
In addition, the next surprise here is that the V720 can actually implement a single-handed opening and closing screen, which is relatively rare for ultrabooks.
The camera and sensor are in the middle of the bottom of the screen. The micro border is really narrow to enhance the face value. 
The 180° opening and closing screen is more practical in some meetings. 
I don't know how to judge the operation part of a notebook. Individuals often need to do some typographic editing or form file processing because of their working relationship (magazine content editing). So they really care about this piece. Personally think that a good mobile notebook In the operating part to meet the mobile office scene without a mouse, but also to provide operators with a good operating experience, the traditional knowledge such as Macbook Air above can meet this setting, and XPS13 individuals praise for it because Its high-precision touch screen brings an operating experience that is rare in the PC camp.
In the operating part, the V720's C side is also the magnesium alloy setting. Although XPS13 above uses a special Kevlar material, the disadvantage is that there is traces of hair oil for a period of time, while magnesium alloys do not have this problem; V720 The keystrokes are moderate and the touch may not be as good as the ThinkPad T series, but it is also good. There is no such thing as the slimming problem caused by the pursuit of lightness (because personal work is a magazine editor, so I am more concerned about this one). Touchpad is also a part of individuals concerned about, V720's touchpad accuracy is a bit of a gap compared to the XPS13, but it is also very good in the PC camp notebook, in a recent business trip, because of worry about the use of touchpad is not used So also brought the mouse, the results found that the entire travel trip is completely useless to the mouse, the entire operation with the touchpad to edit, touchpad operation accuracy is absolutely to meet the editing operation requirements, and some touchpad operating definition Windows10 is actually very good , and even some gestures are more convenient than the Mac system (personal is Mac, Win dual platform user)
The only drawback to the appearance of the C surface is probably these tags. . . Suggest that you can tear it off, remnants can be wiped out with wind spirits, also considered a small life Tips
Backlit keyboards are also standard on laptops.
What is more surprising is that the keyboard is actually protected from drowning, but official propaganda does not seem to indicate anything. It is a bit unexpected. After all, this function is quite practical.
The bottom surface of the V720 is also the D surface, which is also a monolithic aluminum alloy panel. Then there is an air inlet, and the air outlet is in the hinge part between the screen. Therefore, when using it normally, care should be taken not to block the air outlet.
Part of the IO port, IO port compatibility has always been the advantage of the PC camp, V720's IO port has HDMI, Type-C (support lightning 3), USB3.0 two (support 5V 3A output power supply), four in one card reader And 3.5MM audio port, this configuration I did not have to Tucao.
Compared with the XPS13 size, the basic is 13-inch and 14-inch size, just a little bigger, the maximum thickness even thinner than the XPS13.
The same business coldness
Disassemble part, I can get this table can be counted with high, I7 8G 512G.
What do we look at? Mainly to see the heat scale, upgrade the potential battery capacity, dismantling difficulty.
Thermal Scale: The V720 uses a single heat pipe and two heatsinks for internal heatsinks. The performance of a full set of such solutions is tested below.
Upgrade potential: single DDR4 memory slot, single M.2 2280 SSD port (it should be PCIe and SATA dual support, the official standard is Samsung customized NVMe SSD, the following test data) and M.2 port wireless network card port, both Can replace the upgrade, but pay attention to only one of the three interfaces, so if you want to buy a single large capacity.
Battery capacity: 4-cell 55Wh lithium polymer battery (the battery life test below)
Dismantling difficulty: low, just remove all screws on the D surface to remove it easily.
Test - cooling system
With regard to the higher performance notebooks, the requirements of the ultrabook for the heat dissipation system are basically satisfactory and quiet, so the test for the V720 is mainly to test the noise effect of the cooling effect and full load fan speed when the fan is fully turned on.
Noise test: The V720's noise control is still excellent in the case of a copy machine, which is only two decibels higher than the ambient sound below, and it is even more inhospitable under normal use.
Thermal test: The V720 in my hand is the setting of i7 7500U+940MX. If i5 is used, I believe the temperature will be lower. The test process is based on the double CPU of the CPU and the GPU. It is the most severe situation. In normal use, the temperature of the V720 CPU is probably about 50°. In the case of the double pager, the CPU/GPU is basically 70. Within the room temperature, the indoor environment is normal. The cooling of the notebook is not optimized, and the desktop is normally placed flat. In the case of reaching the maximum temperature, the temperature of the housing is measured with a thermometer. The temperature in the inlet and outlet areas is the maximum, reaching about 50°. The palm and the parts touching the thighs are 4x°. The actual touch is a little warm, probably with metal. The surface of the material is relatively easy to conduct heat. In general, the heat dissipation part is not a problem for this machine.
Whether it is the ultrabook or the performance book, personally feel that the screen effect is very important, after all, this screen will normally follow the life of your machine, and will not be upgraded and replaced (except for a few players). The V720 micro-border screen, I believe we are very curious about the actual effect, my side first briefly said this screen characteristics: good quality, but the factory is not adjusted.
This screen is from the AUO353D of AUO. Searching for this model is also the same with Xiaoxin Pro. This is a 1080P 14-inch IPS screen, naturally no problem with viewing angles.
Original hair color: The original screen was slightly blue and yellow. After the color correction by the school color meter, it was obviously ruddy and the problem of white coloration was improved.
Color gamut: It was unexpected that the color gamut of this screen reached 97% Srgb, 75% ARGB, which is the mainstream parameter in retail displays.
Other: The screen brightness is normal, the maximum 300nits, the normal use is above 75% brightness, but the balance of the screen brightness and color balance control are considered good, light leakage control is also OK.
In summary, V720 this screen Hong Kong really does not shrink as long as the late, it is indeed worth buying, of course, after the proposed buy a school color (blue spider can) on the screen upgrade is very large
Screen capture contrast: My way of contrast is very BT, is the actual shooting screen and then compare the original inside the screen. This comparison method is very harsh for all levels of display.
The camera is a Nikon D750+ Sigma 50 1.4A. The picture above is a screen shot and the following is the original image.
Because the camera takes a photo, plus the exposure time, even if the screen is 100% restore the original, after a screen shot will have a certain effect of compromise, but this method is also more intuitive to understand the screen effect.
People who have a mobile office know the importance of battery life for a superbook. Some time ago, they saw the problem of voicing the PC life of the notebook camp on the Weibo. One of the reasons that XPS13 highly praised him. Because of its outstanding endurance, the V720 is also the focus of my attention.
For the V720's battery life test, I used the PCMARK8 battery life test here to play the video battery life test and charge speed test.
PCMARK8 endurance test: Use xxx mode, simulate the office environment, probably can test x hours.
Play video endurance test: Play 720p video (the latest quarter of House of Cards), and after the 3.5 hours of play, the remaining electricity is still 14%.
Charging speed test: The official propaganda "fast charge" one hour to 85%, measured from 14% of the electricity, charging an hour to reach 84% of electricity, basically in line with.
In summary, the V720 can meet half-day use of heavy-duty computer work, or it can be used for office work throughout the day.
In summary, the micro-frame Yangtian V720 is actually a very excellent ultrabook, the overall quality of the camp in the PC there is little balance, almost no short board, the current price during 618 is relatively high, it is recommended to wait and see the activity price, In addition Yangtian series of general purchase price will be more different, there are channels to study, and finally I briefly summarize the advantages and disadvantages of the next V720, convenient and intuitive reference.
Advantages: good screen base, micro border
Measured life time
The volume weight is controlled properly.
Excellent price/performance ratio at normal price.
Disadvantages: The shape design is still very "yangtian", with little feature.
Although the screen is good, it needs color correction.
940MX required. . .
The end part put performance, why put to the end, because individuals feel that the current laptop configuration is really high, almost no performance gap with the platform, and the V720 uses the Intel7 low-voltage version of the platform, so the test I put last to According to your confirmation, if there are any bright spots, probably the SSD part of the current Lenovo notebooks is a Samsung SSD, so it is very good regardless of test data or practical application. In addition to upgrade replacement. Comprehensive performance to see the V720 do graphic editing and daily office entertainment are no problem, video rendering. . . You enough time is enough, 940MX is more suitable for playing online games such as DOTA2, cf, but unfortunately can not choose not to match the video card.
Xiaobian Note: The author of this article @Tiger5G_ is worth buying a living. His personal media information is:
Sina Weibo: Tiger5G
Supporting the promotion of personal brands is a new benefit for living families. For more details, please see the Living Home Announcement. Everyone is welcome to apply for a living home, and outstanding users in their homes will also have the opportunity to become "Celebrity Living Home". Valued friends who have special life experience are welcome to join the family of life!
What is a slip ring?
A slip ring is an electromechanical device that allows electrical current to flow through a rotating assembly. It is often used in conjunction with a commutator to create an electrical connection in a rotating system. The device consists of a number of contact rings mounted on the rotating assembly and two or more stationary contacts. When the rotating assembly is rotated, the contact rings pass by the stationary contacts, creating an electrical connection.
Types of slip rings
A slip ring is an electromechanical device that allows the transmission of power and electrical signals through a rotating assembly. Slip rings are commonly used in applications where it is not possible or practical to make a permanent electrical connection, such as on a rotating antenna, wind turbine, or radar dish. There are many different types of slip rings available, each with its own set of benefits and drawbacks. Some of the more common types of slip rings include fiber optic slip rings, rotary unions, and contactless slip rings.
Advantages of custom slip rings
When it comes to slip rings, custom-made ones have a lot of advantages over the standard, off-the-shelf variety. Custom slip rings are designed specifically for your application, so you can be sure they`ll meet all your needs. They`re also made to order, so you can get exactly the features you want. And because they`re made specifically for you, they`re often less expensive than generic slip rings.
Disadvantages of custom slip rings
In many industrial and commercial applications, a custom slip ring is the best way to transfer power and/or data between two systems. While custom slip rings offer many advantages, they also have some disadvantages. In this article, we will discuss the disadvantages of custom slip rings.
One disadvantage of custom slip rings is that they are often more expensive than other types of electrical connectors, such as wire harnesses or connectors. Additionally, custom slip rings can be difficult to install and may require specialized tools. Another disadvantage is that custom slip rings are not always as reliable as other types of electrical connectors. They can fail prematurely if not properly maintained or used in the correct application.
Conclusion: When to use a custom slip ring
A custom slip ring is an electromechanical device that allows for the transmission of electrical signals and power between rotating and stationary components. The use of a custom slip ring can be beneficial in a number of ways, including improved performance, increased efficiency, and longer life. In some cases, a custom slip ring may be the only option available for achieving the desired results. When considering a custom slip ring as an option for your application, it is important to understand the different factors that will impact its performance.
Custom Slip Ring,Rotary Joint Price,High Pressure Rotary Joint,Moflon Rotary Union
Dongguan Oubaibo Technology Co., Ltd. , https://www.sliproub.com