Basics of Rotary Encoders: Overview and New Technologies

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC’s registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726. Rotary encoders track motor shaft movement for myriad pieces of industrial equipment and commercial devices. For industrial applications, incremental encoders (used when only relative position is needed, or cost an issue) are typically used with ac induction motors. In contrast, absolute encoders (which give a different binary output at each position, so shaft position is absolutely determined) are often paired with permanent-magnet brushless motors in servo applications. Often, encoder feedback is used to ensure synchronization of the motor stator and rotor positions to drive-supplied current, so current is applied to the windings when the rotor magnets are within a proper position range (to maximize torque.) Rotary encoders are specified for form factor, level of ruggedness, and resolution. For incremental encoders, resolution is defined as counts per turn. For absolute single-turn encoders, it is positions per turn, expressed as a multi-bit word. Mu...

LG杯崔精再负彭立尧止步16强 柯洁胜井山裕太

星岛环球网消息:人民网报道,5月29日,第24届LG杯世界围棋棋王战16强赛在韩国战罢。唯一女将崔精不敌彭立尧,止步16强。柯洁逆转战胜井山裕太,日本棋手至此全部出局。陶欣然、陈耀烨、许嘉阳分别战胜对手晋级,八强赛中国棋手占5个席位。韩国棋手3人晋级,分别是金志锡、朴廷桓、申真谞。 韩国女将崔精在本届比赛中闪亮赛场,预选赛战胜世界冠军辜梓豪,本赛32强又完胜世界冠军时越,围棋圈无不为之震惊,遭遇彭立尧后,崔精止步于16强。巧合的是,崔精曾在第21届LG杯中首次预选出线,并在本赛32强中力克范蕴若,将其胜利步伐挡在16强赛的,亦是彭立尧。加上去年三星杯32强赛,崔精一年内双杀时越,2-0的战绩,崔精已然成为了时越的“苦手”,然而彭立尧此时可以开怀大笑,庆幸自己两度成功过“美人关”。 柯洁与井山裕太一局是本轮另一场焦点战,井山裕太代表了当今日本围棋的最高水平,在日本国内几乎无人可以与之抗衡。由于其他日本棋手竞争力不够,很少能够进入世界大赛本赛,因此,几乎每次世界大赛对井山裕太来讲都是一场孤军奋战,肩负着整个日本围棋界的担子,可以说是“压力山大”。本局开局阶段井山裕太黑棋在左上招法犀利,紧凑高效的连环拳将柯洁左上白棋变得局促不堪。取得优势的井山裕太依然招招凶狠,试图将下方白棋一举歼灭,柯洁奋死抵抗,情急之下发现一招“救命”的妙手,井山裕太固执不收手选择开劫十分失策,劫败后白棋连接回家,黑棋落空。官子阶段,井山裕太由于战斗失...

Save on top-rated solar panels and more in today’s best Green Deals

Today only, Home Depot offers the Grape Solar 100W Polycrystalline Solar Panel for $94.99 shipped. As a comparison, it has a nearly $150 list price but typically goes for around $120 these days. Today’s deal is $11 less than our previous mention and $16 less than the historic Amazon all-time low price. You can use this panel with compatible 12V systems on RVs, boats and just about anything that accepts a MC4 connector. Rated 4.7/5 stars. You’ll find more solar panel accessories over at Home Depot right here. Amazon offers the Rachio 2nd Generation 8-zone Smart Sprinkler Controller for $103.65 shipped. As a comparison, this model typically sells for $149 at Amazon, and today’s deal is a new Amazon all-time low. Upgrade your sprinkler system with Rachio’s smart controller, which delivers automatic scheduling based on weather and smartphone control. With warm weather slowly arriving across the United States, having a system like this on-hand makes lawn care easy. Rated 4.6/5 stars. Also today only, as part of its Deals of the Day, Best Buy offers a two-pack of TP-Link HS210 Smart In-Wall Light Switches for $39.99 shipped. That’s good for a $20 discount from the going rate at most ...

City clears way for Komatsu construction | Business

A mix of clouds and sun early followed by cloudy skies this afternoon. A stray shower or thunderstorm is possible. High 64F. Winds S at 5 to 10 mph.. Cloudy skies early, followed by partial clearing. A stray shower or thunderstorm is possible. Low 46F. Winds E at 5 to 10 mph. Four parcels are being combined for Komatsu’s massive facility near the Elko County Shooting Range off Interstate 80 west of Elko. Four parcels are being combined for Komatsu’s massive facility near the Elko County Shooting Range off Interstate 80 west of Elko. ELKO – Elko City Council has taken steps to accommodate Komatsu Equipment Co.’s plan for a 189,000-square-foot service center on 30 acres in west Elko. Komatsu broke ground in late October but the council needed to approve actions to allow for the city to permit the planned building. The building will be Komatsu’s largest in North America, the company’s president, John Pfisterer, told the council in a presentation in November. The site is on P&H Drive just off Interstate 80, where the company expects to unite Komatsu Mining Corp. and Komatsu Equipment employees in Elko following its merger with Joy Global in 2017. Roughly 150 employe...

Lie down and read this before buying a mattress on Memorial Day Weekend

Memorial Day weekend may not be a good time to buy a TV or a new swimsuit, but it is historically one of the best times of the year to purchase a new mattress. Almost every mattress retailer is running promotions this weekend from veteran companies such as Serta, Mattress Firm SNH, -0.11%  and Tempur-Pedic TPX, +0.25%  to start-up firms such as Casper and Tuft & Needle. Even Amazon AMZN, +0.72%  has mattresses for sale. Buying a mattress isn’t a cheap proposition. They can run anywhere from $500 to $4,000 — and the price isn’t necessarily an indication of how well someone will sleep on a mattress. Also see: A new theory on why sleeping less than 7 hours per night can lead to heart disease and Type 2 diabetes “You don’t need to spend thousands of dollars on a mattress,” said Haniya Rae, a writer at Consumer Reports who researches mattresses. “You can get a crappy mattress for thousands of dollars and a great one for less than $1,000.” • The material doesn’t matter. Despite all the hype surrounding memory foam and latex mattresses as compared with traditional mattresses that feature inner springs, the components of the mattress don’t make a huge difference in terms of quality...

As social media continues to flourish in the Internet Age, many consumers are beginning to first

As social media continues to flourish in the Internet Age, many consumers are beginning to first hear about news through their online accounts. First-hand… As social media continues to flourish in the Internet Age, many consumers are beginning to first hear about news through their online accounts. First-hand accounts of incidents straight from the people who witnessed them can be very powerful, but many worry whether some of these accounts are being censored. That’s the case for over 70 rights groups that reportedly asked Facebook on Monday to clarify its policies for removing content. The groups allege that the social media giant has repeatedly acquiesced to governments and agencies that ask it to block user content and posts that show human rights violations. They cite recent examples, in which the company blocked content showcasing police violence and Vietnam imagery, as well as the suspension of two accounts belonging to Palestinian journalists. The groups say that this kind of censorship is dangerous because it deprives people of news from the source. “News is not just getting shared on Facebook: it’s getting broken there. .  . When the most vulnerable members of so...

Bolted joint consistency with stainless steel fasteners

AbstractBolted joint design can be a challenging task when faced with the number of factors that lead to a safe and reliable joint. Failure to understand these factors can be catastrophic if proper attention is not given to each and every component in the joint. In this article an approach to minimise fluctuations with respect to coefficient of friction when using stainless steel, as well as nickel-based and cobalt-based fasteners, will be presented. IntroductionBolted joints are the primary means of fastening in automobiles, but also a common cause of warranty failure. Typical vehicles use 4,000 bolts1. What is the probability that some of these bolts are loose? As it is well known in the fastener industry, ~90% of installation torque can be lost to friction under the head of the fastener and in the threads. Due to the fact that this percentage is so high, minimising any variation with fastener behaviour can have a significant impact on the consistency of the clamp load generated in the joint. The dimensionless number that dictates the friction is commonly referred to as Coefficient of Friction (CoF) and can vary from 0.04 to 1.10. The relationship between CoF and clamp load is...

Disneyland Legionnaires outbreak may be linked to cooling tower

LOS ANGELES (AP) – A health official testified that a cooling tower that provides mist to make Disneyland visitors comfortable was the likely source for 22 cases in a Legionnaires’ disease outbreak last year near the theme park. Dr. Matthew Zahn with the Orange County Health Care Agency testified Tuesday before an appeals board judge at the California Occupational Safety and Health Administration. The Los Angeles Times reports Zahn said tests around the time of the outbreak showed high levels of Legionella bacteria in two Disneyland cooling towers. Upon questioning, Zahn said he could not be 100 percent certain that Disneyland was the source without additional testing. (Copyright 2018 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.) Viewers with disabilities can get assistance accessing this station’s FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC’s online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or fccinfo@fcc.gov. Closed Cooling Tower Cl...

Convoys in Rage 2 are a difficult but rewarding challenge that allow you to seize control

Convoys in Rage 2 are a difficult but rewarding challenge that allow you to seize control of the post-apocalyptic highways for a boatload of rewards directly tied to unlocking some of the crazier vehicles in the game. Each convoy is a tough test of your driving skills that pits you against a large group of heavily armored vehicles that are carefully catered to be a pain in your rear axle. That said, there are a lot of ways to cut these convoys down to a much more manageable size. So let’s break down everything you need to know about convoys in Rage 2, from the quests to get you started to the tactics that will net you an explosive Mad Max style victory every time. As you might expect, tackling convoys isn’t an activity that you want to take up the second you step out of Vinewood. Although the Phoenix is a great ride, it initially lacks the raw armor and firepower you need to make minced metal out of any convoy on the road. That said, unlocking the vehicle upgrade tab can be a little obscure because of the nature of Rage 2’s open world. The good news is that you can access the missions to unlock vehicle upgrades early in the game, but only if you make a beeline for the appropriat...

The Cost Of Mountain Biking, Part Two: Why Premium Mountain Bikes Are Expensive

While we can appreciate the simplicity of sports like basketball, running, and boxing, where the buy-in is minimal and the industry doesn’t shove technological breakthroughs down their athlete’s throats quite as much as they do in our sport, we’re all hooked anyway. If you missed the first part of this two-part series that focuses on the costs of mountain biking, check it out here. In the first story, I tried to find out why exactly mass-market bikes don’t hold up over time. I spoke with B Vivit from the United Bicycle Institute in Ashland, Oregon, Andrew Thomas, a service manager from a non-profit bicycle organization in Denver, Colorado, and Arnold Kamler, the CEO of Kent and Bicycle Corporation of America, two mass-market bike brands that assemble bikes in the U.S. What I found is that while mass-market bikes will of course fall apart more quickly than a premium bike, they’d last much longer if they were assembled properly and regularly maintained. Kind of a no-brainer, right? The problem is that mass-market bikes are mostly bought as “toys” and consumers don’t find an incentive to maintain them. I spoke with Matt Giaraffa and Will Montague from American mountain bike manufa...

Global P-Toluenesulfonic Acid Market 2019 Sales Revenue, Cost, Import-Export Analysis, Margin 2024

Global P-Toluenesulfonic Acid report offers extensive information on fundamental P-Toluenesulfonic Acid Market aspects and futuristic development plans. The latest news, P-Toluenesulfonic Acid Industry trends, plans & policies and growth status is explained. The growth strategies, mergers & acquisition as well as new product launches are reflected in P-Toluenesulfonic Acid Market Research Report. The market size, revenue share analysis, P-Toluenesulfonic Acid Market status, and prospects from 2014-2024 are analysed. The report begins with P-Toluenesulfonic Acid Market Overview, scope, classification and product comparison by type from 2014-2024. The P-Toluenesulfonic Acid Market size segmentation by Type, Application and Region is provided. On a global scale the report is bifurcated into major regions namely North America (US, Canada, Mexico and others), Europe (Germany, France, UK, Russia, Spain, Italy and others), Asia-Pacific (China, Japan, India, Korea and Other Southeast Asia), South America (Brazil, Argentina, Colombia), Middle East and Africa (Saudi Arabia, UAE, Egypt, South Africa and others). For each of the above-mentioned regions and countries, the P-Toluenesu...

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