Recent content by Viroos

The device is attached to the power line with no grounding and is used to charge a battery.

The design is for the electric corporation itself. I make it as two halves.

Hi, I'm a mechanical engineer, but occasionally do some electro-mechanical systems too, but I feel that my knowledge in EE is insufficient. Now I need to design a toroidal inductor in order to harvest power from overhead high voltage lines. How to do it right? The winding should be "simple" or...

Well... we can't require certain storage conditions. Anyway, the munition, of course, will be stored in a controlled environment facility, but it's for sure not hermetically sealed or filled with argon. Also, we can't seal the device because it must have openings towards client's part of the...

I wish we could change storage conditions as we want. They were set by our client who integrates our mechanism into his system. Actually, the munition is stored in an outer case with silica gel bag, but the munition itself isn't sealed. Anyway, what we got is a spec which explicitly requires...

...this is a part of the mechanism. All these items are made of steel, but they contact aluminum parts which I cannot show here. The bore in the slotted cylinder is 5.5 mm dia., its length is 30 mm.

Sorry, I've been away for a long time... Thank you very much for your answers, they're very helpful! Regarding the design-I'm talking about Coke can size electro-mechanical munition subsystem, with motors, levers, lead screws and controller PCB inside, which has to be stored for 20 years at...

EdStainless, Sorry, haven't got it... what kind of restrictions? Could you advise on a better steel? I think having the plating it shouldn't be stainless steel, am I right?

It may be wet, outdoors, and the surfaces cannot be isolated.

Hi Dik, We know that, but for some applications, like aviation, it's still widely used. Anyway, I'd be thankful for any advice regarding alternative plating (like IVD) as well.

Hi, In order to provide long-term galvanic corrosion protection for steel parts contacting other aluminum parts we'd like to plate steel parts with cadmium (already having alodine coating on aluminum). Also, these steel parts are of high precision and must withstand very high loads, so...

Thank you!

Well... but how to bring the outer layer to the pads on the same side? Can I use vias on a flex?

So in dry environment there is nothing to worry about? And if to chose the hardware for aluminum parts, which kind would you prefer-carbon or stainless steel?

EdStainless, And what alloy would you choose for the "cylinder" (the transparent part) and the "piston" (the orange one)? One of the most significant factors in this design is the cost, any dollar we can strip off the production costs is important. WKTaylor, The temperature range is a standard...