# Tag Info

21

You are probably right (it being of Russian origin). The weight seems to be 5 funt. 1 funt is the Russian equivalent of a pound. It is written as Фунт, funt, and around 1900 it was the basic unit of weight measurement in Russia (so it survived in the USSR days), but now its obsolete. 1 Φ is about 409.5 grams.

3

I suppose you could just measure everything. I would frankly expect that no matter how accurately you measure, however, you may or may not get back what you want. But, OD of threads "Thread" width at root and tip and several points between Distance between threads at root, tip, and several points between Thread OD of the shaft without any thread ...

3

When you are raising the plate you are also raising the bearings and since they need to roll there is the frictional component pulling down on the bearings and pulling down on the plate. When you lower the system you are pulling the bearings down and since they again need to roll there is the frictional component pulling up on the bearings and pulling up on ...

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(Other supports compliant) I thought, that if you had an assembly and were straightening out a cantilever portion, you could fix the jack screw and make the other supports compliant. Such as supporting them on bases that have many holes drilled in the bottom and feed shop air into them so they could "fly" and move to accommodate the flexure rather ...

3

The "three plate" method has been used as the basis for precision manufacturing/inspection. This is a decent summary, it's pretty ingenious and only requires dye and abrasives. This will teach you everything you need to know and then some, "Foundations of Mechanical Accuracy".

2

Usually internal dimensions have arrows pointing out and external dimensions with arrows pointing in. But I find the dimensions obvious even when there are just angled lines marking the points as the figure or object makes it clear. Knowing first angle, third angle does help.

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With infinite budget, there are fantastic thermal micro-flow sensors, though they too have issues for drip-drip type situations. One thought, still same overall concept as the tipping bucket, could be to send the flow in a clear tube oriented vertically, with a normally-closed solenoid valve at the bottom. Have your automation optically detect (conceptual ...

2

Just a general method to considering form, fit, and function when measuring any part: Start with the overall outer dimensions and areas where it would interfere or interface with other pieces (fit). Since this is where the previous attempt failed, be sure to give it extra attention. Then focus on the areas that allow the part to do its job (function). This ...

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You can use the following formula to produce the white noise for one cell. = 0.5*NORM.S.INV(RAND()) Where: 0.5 : can change to any non-zero number. It will control the range of the data. NORM.S.INV(RAND()) : produces a random number from -inf to inf, with mean zero and standard deviation 1 you can create a column for noise with this equation, and then just ...

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You can buy an incense stick, which burns slowly and produces perfumed smoke. you then position the incense stick at different points in the sauna and make a video of the resulting smoke trails.

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This NASA article discusses some of the common wind tunnel flow visualization methods. A fog machine generally uses a heated mixture of polypropylene glycol and water. You can test different mixture concentrations in an electric kettle, and use a plastic tube to plumb the fog stream to the locations you are interested in visualizing the flow. Tufts or pieces ...

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The standard method, as set out in the BIPM Guide to the Expression of Uncertainty in Measurement, is to work out the derivative of $y$ with respect to $x$ (in this case, $\mathsf{d}y/\mathsf{d}x = -1/x^2$), evaluate it at the modal value $x_{\star}$ of $x$ (i.e. at the peak of the probability density distribution over $x$), then estimate the standard ...

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You could get 3 compression springs for your 1/2/3 levels of tip. Very high spring rate for #1, medium for #2 and low for #3, depending on what you need. The limit could be once you fully compress the spring (all the coils touch), that much force is how much should be needed to tip over whatever you're talking about.

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Rain gauge tipping bucket data loggers are quite small. The whole thing is the size of a cookie tin. Bucket size (resolution) is about 1 cc. Decent explanation in the video below. https://www.youtube.com/watch?v=RruQhoXrVoE

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there is a whole genre of "square block" videos on YouTube by various machinists. The standard tool seems to be the lathe. But really, you are asking how to set up a machine to be perpendicular. apropos, video for your edumatainment

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No The only way to test a micrometer is with a gauge block or second mic.

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Short answer: You need a load cell. There are many types available, but you will probably have to choose one of the more common ones because the special ones cost big bucks. Longer answer: You will need to mechanically constrain this whole assembly so that the load cell experiences force only on the correct axis; that won't be trivial to do. Alternate route: ...

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I have worked with Autocad and ACAD3DS, but I know SketchUp has the same capability. In Autocad, you can import an image and scale it, then the program will turn it into a vector file that you can block and edit or add to your drawing. You can use a photo of the model you're interested in and turn it into a vector block. There are online apps that convert ...

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No.data: Value could not be sent via Bluetooth® Technology. Check the Bluetooth® connection on instrument and master device (on/off). Check if you are within the max. transmission range 5-15m. https://www.sylvac.ch/faq?view=topic&id=2 I have now resolved this issue in my case: the caliper's BT connection needs to be set up using the app that Sylvac has ...

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