Talk:Indicator (distance amplifying instrument)

German language info

The lever type is known in German as 'Fühlheber'. --LA2 23:48, 2005 Apr 18 (UTC)

Geometry

After reading a couple paragraphs I still didn't understand the geometry of the thing being measured and the geometry of the probe that measures it. Are we measuring a gap with a conical probe? Is it like a feeler gague or is it like a caliper? Rtdrury 21:46, 8 January 2006 (UTC)

It is like a depth gauge; so it is like the depth gauge of a caliper, but spring-loaded to respond to changes the distance being measured. Hopefully it's clear from the pictures? jhawkinson (talk) 05:28, 15 May 2009 (UTC)

Not SPC!

In the section titled "Digital Indiocator" th eauthor refers to the transmission of measurement data to a remote computer as "This process is known as Statistical process control (SPC)". This statement is incorrect. SPC involves much, much more than remote datalogging. 212.18.233.29 09:12, 3 January 2007 (UTC)

i study engineering and need some data

what about the mechanical comparator? also, what about i need to ask about certain specification in a certain instrument such as construction how to operate. are there links to see videos about something like that? or see it when we use it measuring anything?

thanks alot, i would be grateful if i took ur reply —Preceding unsigned comment added by 41.233.90.143 (talk) 02:30, 25 October 2008 (UTC)

comparator is amplifier. amplifies 10 times the difference. USE:insert the gage block (test piece having precise dimension), set dial(of comparator) to zero, insert part to be checked, any variation will shown on the gage 10 times higher. One drawing available in tata mcgraw-hill publication "shop theory".pg.no. 115

Please see optical comparator or the reference desk. Wizard191 (talk) 14:15, 25 April 2009 (UTC)

Contact Tip

Is this section correct? If you tare the machine, which you should be doing after each measurement when the parameter being measured requires the precision of a dial indicator, tip effects should immediately vanish. Am I missing something? — Preceding unsigned comment added by 12.105.245.7 (talk) 21:59, 24 May 2012 (UTC)

Your thinking is on track. I fixed the section. It was not wrong in the intent of what it was trying to say, but it was failing to say it clearly. The writing had evolved with the conflating into one discussion of both drop indicator tips and DTI tips, which are really two separate discussions. So I broke it into those two subsections. The sentence about the offset factor was implicitly talking about DTI tips, but there was nothing to keep the reader from assuming that the implicit context was drop indicator tips. Speaking specifically about drop indicator tips, it is trivial to change from one tip length to another, as long as your setup includes re-zeroing the indicator. Which is your basic point. On top of that, I'd add that it is not even necessary to re-check the zeroing after each measurement, as long as you re-check it with some reasonable frequency. For example, if working to a tolerance of many thou, re-checking the zero might only be done after every 20 or 50 or 100 measurements. If working to a tolerance of a few tenths (.0001"), re-checking the zero might be done after every one or two or three measurements. Anyway, thanks for helping to improve the section. — ¾-10 20:58, 26 May 2012 (UTC)

Re not drifting off topic

Hi Pol098. Your edit summary was, "rv recent change - article is about pointers, includes pointer as common type, & other indicators are commonly used, dials, clocks, probe indicator (meat thermometer, soil humidity), &c &c." But please note that the title of the article is "indicator (distance amplifying instrument)". This article is not about every measuring instrument with a pointer, or with a dial, or with a digital readout. The article with the scope that you're thinking of is dial (measurement)—not indicator (distance amplifying instrument). This article is about indicators specifically, in the sense of distance amplifying instruments, such as drop indicators, dial test indicators, and so on. A meat thermometer is not a distance amplifying instrument. A soil humidity meter is not a distance amplifying instrument. This article is about indicators that take a distance of a few thou or a few dozen microns and amplify them so that the user can measure things like manufactured parts or shifts in building walls. This article isn't about speedometers, thermometers, hygrometers, or other instruments. I don't object to the mention of everyday life in itself (after all, a machinist uses dial test indicators as an everyday experience), but speedometers and thermometers are not part of this article's scope, because this isn't an article about "every kind of gauge that has a pointer" (for that, see dial (measurement)). Just explaining here at talk before I edit again. Thanks. — ¾-10 23:47, 30 January 2013 (UTC)

How about a look (or description) of the mechanism past "clockwork"

Many other wikipedia articles (e.g. Pump) go into great detail on the external mechanism. Perhaps this would be worth extending? Riventree (talk) 13:47, 31 March 2018 (UTC)

OK, how about "really accurate clockwork"?

Photos would be good, but in terms of prose, there's just not much more to say than "clockwork". They're really pretty simple, just very carefully made. Andy Dingley (talk) 16:26, 31 March 2018 (UTC)

Again, Andy? I've left you alone for years - stayed out of your forte subjects, not called you out... And you're just going to pop out another snide and totally unproductive comment like "really accurate clockwork"? Going past "clockwork" might involve the words "rack and pinion", "anti-backlash spring", etc. And a picture or diagram likewise. What in six hells brings you to throw gasoline around? I've been doing my absolutel level best to ignore you and not tread on your toes. PLEASE return the favor.

Riventree (talk) 17:06, 1 April 2018 (UTC)

Any more of this and don't worry, you'll be at ANI in moments. Andy Dingley (talk) 18:50, 1 April 2018 (UTC)

And by "any more of this stuff", I do of course include this sort of behaviour:

• User talk:Doc James#Please Help
• User talk:Vsmith#Please Help
• User talk:Materialscientist#Please Help
• User talk:Smokefoot#Please Help
• User talk:Edgar181#Please Help

Knock it off. Andy Dingley (talk) 12:37, 2 April 2018 (UTC)