The main parameters of the potentiometer

Nominal resistance, zero resistance and rated power

The nominal resistance belongs to the resistance marked clearly on the potentiometer, that is, the resistance between the two fixed ends of the potentiometer; the zero resistance refers to the minimum resistance of the potentiometer, that is, the minimum resistance between the moving end and any certain end Value; potentiometer rated power refers to the maximum power allowed for long-term continuous load under the specified rated temperature when the atmospheric pressure is 87 ~ 107 kpa in AC and DC circuits.

Variation characteristics of potentiometer resistance

The change characteristic of the resistance value of the potentiometer refers to the relationship between the resistance value of the potentiometer changes with the length of the movable contact or the angle of rotation of the rotating shaft, that is, the characteristic of the resistance output function.

potentiometer resolution

The resolution of the potentiometer is also called the resolution of the potentiometer. For the winding potentiometer, when the moving contact moves each turn, the ratio of the output voltage change of the potentiometer to the output voltage is the resolution. For a linear winding potentiometer, the theoretical resolution is the reciprocal of the total number of winding turns, and it is expressed as a percentage. The more the total number of turns of the potentiometer, the higher the resolution.

Dynamic noise of potentiometer

The dynamic noise of the potentiometer refers to the electrical noise generated when the potentiometer slides on the resistor when its moving contact point slides on the resistor. Dynamic noise is the main parameter of sliding noise, and its size is related to the speed of the rotating shaft, the contact resistance between the contact point and the resistor, the uneven variation of the resistivity of the resistor, the number of moving contacts and the magnitude of the applied voltage.

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What is the working principle of instant water dispenser

The first step is the water out of the tank. Our water dispensers generally need to manually fill the water tank. The specific method is that we must fill the water tank with water according to the requirements of the scale of the water tank before use, so as to meet our next use.

The second step is to achieve water output through flow control. For example, we set the water to 250ml, then after confirming at this time, the outlet flow switch will be turned on, and then accurately measure the incoming water is 250ml, this is to close the valve, so the water enters the heater position.

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The third step is rapid heating according to the set temperature. Our instant water dispensers have a very powerful heating module. When the water enters the heating module container, it is then heated according to the water temperature we set. For example, if the waterproof level is set to 85 ° C, after the module is powered on, it will generate heat and quickly heat the water to 85 ° C.

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The fourth step is the control of effluent. When the water temperature reaches the required heating temperature, the water outlet switch will open. In this way, the heated water passes through the water outlet and then is discharged. We use a cup to catch it, which completes the entire water use process. In fact, it takes a few seconds from start to finish.

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Chip growth may still be very different

Leading technology companies have different forecasts for the semiconductor market in 2020. Before updating COVID-19, IDC forecasted a growth of 2%, and Gartner predicted a stronger growth of 12.5%. By 2020, IDC predicts that half-revenue will fall by 3% to 6%, while Gartner only predicts a decline of 0.9%.

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In order to obtain these figures, the situation in the second half of this year will have to decline significantly from these reliable first half figures. Of course, due to concerns about the supply disruption later this year, there will be a lot of demand for chips in the near future. This may mean buying dry goods later, especially if demand is declining and customers have a lot of inventory.

Nevertheless, depending on the application of the technology, the chip growth in 2020 may still be very different.

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Assuming that in the next few months or quarters, we will have to continue to take social isolation measures, then I will see data center chips receive much attention, especially in terms of memory, storage and processing power. As people play more video games at home, as well as new Xbox and playStation consoles scheduled for release this winter, graphics chips for video games, semi-custom chips for memory and video consoles will also grow.

However, mobile phones, industrial and automotive applications are all affected by consumer purchases and economic growth, and are likely to be hit hard. This is why Microchip is the most pessimistic. Compared with the other two companies mentioned above, it has a much broader business in the industrial, automotive and consumer electronics sectors.

Therefore, I think technology investors need to choose their own location and focus on chip stocks, which will enter the data center, gaming and laptop markets in 2020. More broadly, chip manufacturers covering the industrial and automotive fields (such as Microchip) may have much weaker sales in the second half of the year.

David and Tom have just revealed the ten stocks they think investors are most suitable to buy at present and Intel is not one of them! Yes-they think these 10 stocks are a better choice.

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How to configure proper motor voice coil motor drive control

The voice coil motor is a DC servo motor that converts electrical signals into linear displacement. It is based on the principle of ampere force, that is, the energized coil is placed in a magnetic field to generate force. The force is proportional to the current applied to the coil. The voice coil motor theoretically has a series of advantages such as infinite resolution, no lag, high response, high acceleration, high speed, small size, good force characteristics, and convenient control, making it more suitable for requiring high acceleration, high frequency excitation, Fast and high-precision positioning control system;

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For Tongmao Motors, we are accustomed to choose the US COpLEY driver to drive the voice coil motor platform; 1, high cost performance; 2, powerful functions; 3, years of practical application experience, can handle exceptions in time; of course, Switzerland Infranor and Israel Servotronix It is a voice coil motor driver with outstanding performance;

Copley drives provide high-performance motion control solutions for a wide range of industrial applications, including semiconductors, medical devices, automated assembly lines, photovoltaics, aviation, and packaging industries.

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Control modes: position, speed, torque; using field-based torque, speed, and position control to achieve optimized dynamic performance and cycle time, which combines acceleration forward feed and acceleration-limited buffering.

The variety of optional control methods includes: through fieldbus, pulse / direction or digital / analog input, or integrated into existing control design; stand-alone operation mode can also be used.

Easy programming: The parameterization of the drive is fast and convenient, and it can be quickly programmed using free software;

Main encoder feedback: digital incremental encoder number; Hall analog sin / cos encoder.

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information ite a window for product display

After consumers obtain enterprise product information through other channels, in most cases they may go to the enterprise website for in-depth understanding, and one of the values ??of the enterprise website is to faithfully explain the product information to consumers through texts, pictures, videos and other materials. Through these materials, it will cause certain psychological cues to consumers, and play a certain role in facilitating transactions. It should be noted that the information provided by the corporate website needs to be more complete and comprehensive than the information obtained by consumers through other channels.

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Enterprise information release

In addition to daily public relations press releases, corporate websites, as an information carrier, also undertake the task of publishing corporate news information. On the premise of not violating laws and ethics, publishing news, product information, promotional information, bidding information, collaboration information, personnel recruitment information, etc. that are conducive to the corporate image will also help to enhance the corporate brand image.

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Direct sales

If the business that the enterprise is engaged in can be achieved through online sales, through various channels of drainage, and ultimately lead consumers into the online sales system of the enterprise website, it is a good choice for both enterprises and consumers.

Finally, the role of corporate websites in online promotion is not fixed, and there may be different situations in various industries and periods. However, the status and significance of corporate websites in online marketing will not change much in a short period of time. Mastering and using a good corporate website to maximize its value is essential for online marketing promotion, at least at this stage.

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water dispensers Market place Critical Gamers

Couple of of your current market gamers accounting for World-wide H2o Dispensers sector includes,Drinking water cooler: Broadcasting from residences, Saturday Evening Stay cast serves up levity

“Saturday Night time Live” returned this weekend with its very first “SNL At Home” episode from the demonstrate. Similar on the remainder of the late-night, reside tv environment, the show has tailored for the coronavirus pandemic by broadcasting through the residences of its forged.

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Inside the spirit of all points coronavirus, the clearly show was obviously hosted by Tom Hanks who a short while ago built headlines when he and his wife, Rita Wilson, examined beneficial for COVID-19 though in Australia in March.

Starting off by using a pack up of Hanks’ pristine typewriter selection, the digicam panned to Hanks as he walked on stage – and by which i mean into his kitchen area – suited, lit and ready with cue cards and all. The crowd cheers and Hanks remarks, “That is a few seem impact.” With some updates on his overall health, some “audience” thoughts showcasing what seems to become a mustache fashioned from printer paper and marker, and heartfelt because of all of the crucial personnel in existence, the initial “SNL At Home” display was off and operating.

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Worldwide Clever H2o Cooler Market Data Analysis

The global clever drinking water cooler current market investigation report is distributed on more than one hundred internet pages and supplies significant vital stats, knowledge, info, tendencies and competitive facts about this marketplace phase. The worldwide smart water cooler current market is actually a specialist and complete report regarding the good drinking water cooler field. The report screens the primary developments and current market drivers inside the present-day scenario and supplies on-the-spot insights. Along with the assist of tables and knowledge that can help analyze the worldwide market for world-wide good drinking water coolers, this analyze presents vital statistics about the point out in the industry and is a worthwhile supply of steerage and steerage for companies and people today intrigued in the market. The report gives a comprehensive analysis with the benefit chain, production, intake, revenue and options in the worldwide sensible h2o cooler industry.

The review also supplies important market place indicators that affect market place growth. The investigation report includes analysis from the key gamers, which include just about every player’s marketplace share, progress level and market place attractiveness of different conclusion customers / locations. Our investigate “Smart H2o Cooler Market” may help customers make accurate decisions to broaden their sector share and boost marketplace share. The report includes market dimension estimates of price (numerous US pounds) and transaction quantity (K units). Both equally top-down and bottom-up strategies have been accustomed to estimate and verify the marketplace sizing in the smart h2o cooler market place in order to estimate the dimensions of every other sub-market while in the full industry. The investigation report also introduced the solution flow and distribution channels.

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The wise h2o cooler market report features SWOT and pESTLE investigation to offer a further comprehension of the sector. Centered on gross margin, market share, long run ideas, recent developments, concentrate on buyer groups, products and solutions and programs, along with other essential factors, an overview of each of the most significant corporations incorporated while in the report is offered. The report also offers a regional assessment on the wise water cooler marketplace, concentrating on market progress, progress amount and growth opportunity.

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Moreover, the statistical survey report focuses on solution specs, charges, generation capability, internet marketing channels, distributor lists, and detailed assessment of product imports and exports. A systematic research is executed on upstream uncooked products, downstream demand analysis, consumer lists, and suppliers and expenses in the sector.

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使用環保型通風降溫蒸發式空調時應注意

蒸發式空調的使用壽命與維護部件有很大關係。蒸發式空調主要由水簾,電機,水泵,進水浮球,排水閥等組成。首先,部件的質量良好。其次,這些組件需要很好地維護。如果這些組件之一發生故障,則蒸發式空調將無法正常運行。維護越好,使用蒸發式空調的時間就越長。

蒸發式空調,環保節能型蒸發式空調,潤芳蒸發式空調,湖北潤芳蒸發式空調

如果想要良好的通風和冷卻效果,則需要使用水幕效果。需要經常清潔水幕以保持其清潔,從而使通過水幕的款式既乾淨又涼爽。電機是環保空調運行的核心。您不得按下開關。這會嚴重損壞電機。如果操作不當,可能會燒毀電動機。水泵,進水球和排水閥是一個連貫的過程。如果中間任何地方出現問題,整個環保空調將無法平穩運行。因此,我們必須注意維護這些地方。

在正常情況下,合理使用和適當維護,環保空調可以使用約10年。以下幾點列出了縮短蒸發式空調壽命的原因。

目前,在日本城網購$500就可以免費送貨到家,讓您足不出戶,在網上就能夠流覽到冷氣機的產品規格,方便您能夠儘快的選到心儀的產品。

該電子控制系統的技術含量低,不能主動清潔汙垢,也不能識別灰塵堵塞的程度,從而引起各種問題的發生。平時不注意保養。電機和特殊的電氣配件質量很差。鐵架,送風管道,專用出風口和專用空氣噴嘴的原料較差,使用壽命短。

用戶使用不當,容易造成環保空調的損壞,進而縮短使用壽命。灰塵過濾器或濕簾蒸發孔被堵塞,無法定期進行手動整理。注塑成型的機身,鼓風機和葉片的原材料差,結構設計不合理,導致風量小,風壓低,噪音大,使用壽命短。無法定期清潔機器底部積聚的汙垢以進行手動清潔。

購買一款品質好的電風扇,它的性能好才會利於空氣的流通和達到降溫的效果,而且還比較節約能源,需要購買的話就可以到日本城網購JHC eShop,這裏會有很多不同品牌的電風扇,性價比值得信賴。

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帶有通風和冷卻功能的蒸發式空調真的工作得很好嗎fan

清潔浴室玻璃門的方法

淋浴房玻璃上的黃色水漬,需要我們使用一個玻璃進行清潔劑噴灑,再用幹布擦洗即可得到光亮如新。
對於玻璃房有水漬的,可以去超市買一個適合自己的淋浴房玻璃門大小的玻璃刮,超市裏有塑料或金屬支架和拉手預埋膠條,長度一定要和自己的淋浴房玻璃長度差不多,太長不會方便,淋浴後用玻璃刮花淋浴房玻璃,不用花很多時間,也不用費力。

北美著名的浴室 潔具製造商,歷史過百年,而在香港亦累積了近五十年的經驗和口碑,是不少家居住所或公司最佳之選。

如果有在淋浴玻璃結垢,可以是醋和少量鹽洗滌的混合物,可以被刪除。
用玻璃以及器皿清洗液將浴室的玻璃企業或是磨沙玻璃進行噴塗一遍,然後用自己洗碗球擦一道,再用溫水清洗磨砂玻璃材料即可。

現今不少水龍頭 牌子都擁有讓人驚嘆的高科技及動人的設計,但能夠在各大水龍頭牌子中突圍而出,自然有其過人之處。

用幹淨的精神清潔衛生間,除平時也要注意保持清潔外,每天用帶噴頭的淋浴器6個即可,先將玻璃水均勻噴灑在玻璃表面,再用幹軟布將其擦拭幹淨。衛生間的玻璃汙漬一般屬於堿性物質即基本上是鱗片狀的,可以用一些弱酸性的洗滌劑清洗,噴在玻璃上或者用清潔球就會很容易掉,家裏一般吃醋都可以,玻璃制品等用了很久就有汙垢的時候,用醋和少許鹽洗一下,就可以。

旗下的浴室 潔具,都受過無數次產品測試才出品。

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安全使用電磁爐消除隱患

現在,許多人的家中都有電磁爐。電磁爐很方便,但是許多消費者在使用電磁爐時會引起各種隱患。

眾所周知,電磁爐是一種大功率電器。如果使用不當,將會帶來安全隱患。正如剛才提到的兩種情況一樣,電源故障將導致火災,而不會造成重大損失。那么如何安全使用電磁爐呢?蘇弟兄還根據網友的日常使用和分享總結了八點供大家參考。

電磁爐對水蒸氣和濕氣的抵抗力最強,應遠離熱氣和蒸汽。

電磁爐中有一個冷卻風扇,因此應將其放置在空氣流通的地方,並且出風口應與牆壁和其他物品相距10厘米以上。另外,電磁爐的濕度是10%-40%,所以最好不要在雨季使用。

電磁爐不能使用這些材料來加熱食物,電磁爐不能使用玻璃,鋁或銅的容器加熱食物。這些非鐵磁性物質不會加熱。在使用過程中,請勿將以下物品放在火爐表面上

在使用過程中,請勿將鐵磁物體(例如刀,叉和瓶蓋)放在爐灶表面上,也不要將手表或其他容易受磁場影響的物品放在爐灶表面或身體上。電磁爐的“特殊范圍”

在電磁爐的2-3米范圍內,最好不要放置諸如電視,高清播放器,錄音機等可透磁的家用電器,以免受到不利影響。

本城網購JHC eShop除了電磁爐購買還可以瞭解其他家家居產品,如傢俱、電器、小物件應有盡有,一定可以挑選到讓您心儀的產品。

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勿將電磁爐以外的金屬物體放在電磁爐上