Recent content by DaveE

You can't tell damage thresholds from the sensitivity/range specifications. It is almost universally common for EEs to design various types of overload protection into their stuff. It has a CE mark, so I would guess it was (should have been) tested with some pretty strong RF magnetic fields for...

But, the problem I have with this is the literature you posted was clearly (IMO) written by disingenuous people. So I have no trust in anything else they say. I'm not saying the device is bad, IDK. But the conversation with the manufacturer is definitely broken from an engineer's perspective. We...

Probably OK unless you are (somehow) inside the motor or speaker. High intensity magnetic fields are hard to make and are mostly contained with magnetic core materials. They don't really want most of their field to escape either.

"electrosmog" has a nice BS marketing ring to it. They do have talent, the copy writers. Anyway, sorry, totally off topic. To make money. Maybe, IDK. How strong? I wouldn't put it in an MRI machine. Ask the manufacturer. Which BTW, reminds me of another (off topic) story. I was in the...

Any "medics and alternative practitioners" that use this device aren't going to be treating me or my family. Just saying... YMMV.

Maybe @Baluncore can advise? He does more LTSpice than most of us. There are also online guides. I doubt that it supports simultaneous displays from different simulations. You'll probably have to export the data to another graphing application.

If the field is uniform (direction and magnitude) withing the areas measured and you don't change the geometry (like tilt the sensor), then no, the B-field reading shouldn't change. Basically you are just measuring the total flux coupled through the area of the sensor, so whatever flux you...

I doubt that any complex working vessel is currently "up to code", even if they were once. It's a bit naive to think that things actually are the way they are supposed to be. But the portions that have been recently repaired certainly should be. But even this may be unrealistically optimistic.

The OP specified 500kg and >10KW. The only pertinent unspecified variable is how far the weight gets to fall; i.e. how long do you get 10KW. You don't get to choose the minimum speed of the fall if you've specified the other stuff. Once you've achieved the minimum speed, then you would want to...

##sin(\omega t) - sin(\omega t +\frac{2}{3} \pi) = ## ##sin(\omega t) - sin(\omega t)cos(\frac{2}{3} \pi) - cos(\omega t)sin(\frac{2}{3} \pi) = ## ##sin(\omega t) - sin(\omega t)(\frac{-1}{2}) - cos(\omega t)(\frac{\sqrt{3}}{2}) = ## ##sin(\omega t)(\frac{3}{2})-cos(\omega t)(\frac{\sqrt{3}}{2})...

In the US they can prescribe it, but they won't. In practice it comes from specialists: Anesthesiologists (pain management), palliative care, etc. You need a DEA license and have to deal with records and paper work. Except in the hospital, where lots of specialists use it for procedures. IV...

Look into housing availability and cost. The Bay Area is difficult in that regard. It's a great place to live, but everyone else wants to live there too. Academically, I don't think it matters. They are both great schools.

Humm... I'm seeing a trend here. Uranium, Fentanyl, Gold... all used productively by humans, all dangerous when misused by humans.

This would be about statistics and curve fitting, I think. You'll have some basic assumptions as constraints for your model, things like continuity, that you haven't told us. Then I would just use a polynomial fit. It 's not that that's the correct answer, it will be just as likely to be wrong...