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德國馬爾數(shù)顯指示表一一由你作主。

點(diǎn)擊次數(shù):1345次  更新時(shí)間:2019-04-12

         德國馬爾武漢科賽思機(jī)電有限公司為德國馬爾數(shù)顯指示表服務(wù)代理商。在許多應(yīng)用場景中,數(shù)顯字指示表的性能和特性就像臺(tái)式放大器一樣強(qiáng)大。在數(shù)顯指示表上通常都可以找到如動(dòng)態(tài)測(cè)量、比例因素,單邊公差,不同的輸出格式和微英寸分辨率等功能。即使是指示表,但它們的價(jià)格卻大約僅是臺(tái)式放大器和電感測(cè)頭的四分之一。

          In many applications digital indicators are becoming so powerful that they are taking on the performance and features of bench amplifiers. It is not uncommon to find features such as dynamic measurements, multiple factors, unilateral tolerances, different output formats, and micro-inch resolutions in higher end digital indicators. And while they may be high-end for digital indicators, they are still about a quarter of the price of a bench amplifier and probe.
 

         This is a great benefit for the company. They can get a very powerful indicating device to replace a bench amplifier or upgrade a dial indicator for a very cost-effective price.
        這對(duì)公司來說是一個(gè)很大的受益。他們可以以一個(gè)很劃算的價(jià)格用性能強(qiáng)大的數(shù)顯指示表來替代臺(tái)式放大器或升級(jí)原有的指示表。

        For the user, upgrading from a dial to digital indicator may be a sudden technology shift. For years the operator was interpreting the pointer's position to read the measurement. In many ways, the human brain is like an analog device, and it can often gather more information more quickly from an analog readout. I have seen QC inspectors make consistently accurate go/no-go readings with dial indicators even before the pointer has stopped moving! They can tell at a glance approximately where the pointer will stop, and in many applications, that is close enough.
       對(duì)于用戶來說,從刻度盤升級(jí)到數(shù)顯指示表應(yīng)該是技術(shù)突變。多年來,操作者是通過指針的位置讀取測(cè)量數(shù)據(jù)。在許多方面,人類的大腦就像一個(gè)模擬裝置,它通常可以從一個(gè)模擬讀數(shù)中更快地收集更多的信息。我曾經(jīng)見過一個(gè)質(zhì)檢員可以始終做出準(zhǔn)確的GO/NG判斷,甚至在指針還未停止時(shí)都能準(zhǔn)確判斷!他們可以一眼估出指針大約將會(huì)停止在哪里,并在許多應(yīng)用中,數(shù)據(jù)足夠接近。

         Skilled operators can also "split grads" with dial indicators, i.e., resolve the pointer's position to an accuracy of about one-fifth of the gage's stated minimum graduation value. And analog dials enable the machinist to observe the direction his process is headed. If reading #1 indicates 1/5 of a grad over zero, reading #2 is precisely zero, and reading #3 is 1/5 of a grad below zero, the user may be able to draw valuable conclusions about the condition of his tool. In other words, dials can provide more information than simply the dimensional measurement. An early digital readout would have read zero in all three cases, depriving the user of this additional information.
             熟練操作者也可以通過機(jī)械指示表 “估讀”,即,將指針的位置解析為測(cè)量器規(guī)定的低分度值的五分之一。模擬指針使機(jī)械師能夠觀察過程走向。如果1號(hào)指示表的讀數(shù)超出零位1/5格, 2號(hào)指示表恰好是零, 3號(hào)指示表讀數(shù)低于零位1/5格,使用者可以對(duì)工具的狀況得出有價(jià)值的結(jié)論。換句話說,刻度盤可以提供更多的信息而不僅僅是尺寸測(cè)量。早期的數(shù)顯讀數(shù),在這三種情況下都將讀取為零,從而剝奪了使用者讀取額外信息的能力。
TechnologyShock and Security
技術(shù)的沖擊和安全
But now give that same operator a digital device that is basically a compacted bench amplifier having numerous buttons, flipping digits, dynamic memories and a bunch of symbols on the dial and he may suddenly go into technology shock. This may be true both for an operator moving to digital indicators, or even newly employed gage technicians as they start working with some new and more powerful measuring products.
             但是現(xiàn)在給同樣的使用者一個(gè)數(shù)字設(shè)備——一臺(tái)緊湊的臺(tái)式放大器,配有許多按鈕,跳動(dòng)的數(shù)字、動(dòng)態(tài)記錄和表盤上的一串符號(hào),他可能會(huì)突然陷入技術(shù)沖擊。這技術(shù)沖擊對(duì)于一位剛改用數(shù)顯指示表的使用者,或者是開始使用一些新的更強(qiáng)大的測(cè)量產(chǎn)品的新技術(shù)人員時(shí)都是真實(shí)存在的。

Many manufacturers of digital indicators have tried to take control of all this flexibility from the operator by setting up passwords or codes as part of the digital indicator's setup process. The idea here is that once the digital indicator is setup with its tolerances, measuring direction, resolution, measuring mode, multiplier, etc., etc., the password would in effect lock the operator out from accidentally changing the setup of the indicator and potentially affecting the measurement results. This "soft" protection is OK for many applications.
            數(shù)顯指示表的許多制造商都試圖通過設(shè)置密碼或數(shù)顯指示表安裝代碼以便操作者可以進(jìn)行靈活控制。這個(gè)的想法是,一旦數(shù)顯指示表的公差,測(cè)量方向、分辨率、測(cè)量模式中,比例因子等已設(shè)置好,密碼鎖定會(huì)防止操作員不小心改變指示表的設(shè)置,從而影響測(cè)量結(jié)果。這種“軟”保護(hù)對(duì)很多應(yīng)用程序都很實(shí)用。

However, many shop floor operators are pretty inquisitive and sometimes this soft security is bypassed. Suddenly, the setup of the gage changes, and with it results are affected.
            然而,許多車間操作員都是很好奇的,并且這種軟安全經(jīng)常被忽略。量具被突然更改了設(shè)置,結(jié)果也便受到了影響。

              For life critical industries like medical or aerospace, having soft security may not be good enough. What's really needed is a digital indicator configured and dedicated to the specific application. In other words, it's ordered for the application with the desired resolution, measuring direction, and multiplier for example. It's like getting an indicator your way. This becomes a factory-set process in which there is no way for an operator to change the indicator's function. In effect it is hard wired for the application.
               對(duì)生命至關(guān)重要的醫(yī)療或航空航天等行業(yè),僅擁有軟保護(hù)可能不夠。真正需要的是一個(gè)配置且專注于特定應(yīng)用程序的數(shù)顯指示表。換句話說,它是為應(yīng)用程序定制的分辨率、測(cè)量方向,比例因子等等。就像一個(gè)*由你定制的指示表。這變成出廠設(shè)置程序,操作者沒有辦法改變指示表的功能。實(shí)際上,它是為應(yīng)用程序設(shè)計(jì)的硬件保障。

This concept is not for everyone. As with anything "custom" it's apt to cost more and the delivery will not be off the shelf. But in a critical measuring process where any setup errors may affect the outcome, special dedicated digital indicators may be the most secure method for ensuring trouble-free results.
             這個(gè)概念并不適合所有人。與任何“定制產(chǎn)品”一樣,它會(huì)增加成本,而且也不會(huì)有現(xiàn)貨。但是在一個(gè)關(guān)鍵測(cè)量過程中任何設(shè)置錯(cuò)誤可能都會(huì)影響結(jié)果, 對(duì)于不允許出錯(cuò)的環(huán)境,特殊數(shù)顯指示表可能是安全的方法。

For life critical measurements some applications may require a factory-set digital indicator dedicated to the application to help prevent operator errors.
對(duì)生命至關(guān)重要的測(cè)量應(yīng)用,可能需要出廠預(yù)置的數(shù)顯指示表防止操作員出錯(cuò)。

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