Questions tagged [electro-mechanical]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
2answers
39 views

Maximum temperature of an electric motor and proper cooling system

I have found an electric motor in my home and I want to estimate how much time it can operate until its temperature becomes too high and eventually build a cooling system for it (I have seen that ...
0
votes
1answer
27 views

How does conduction angle through a bridge rectifier affects generator performance (vibrations, etc.)?

Consider this scenario: A 3-phase permanent-magnet generator is being driven by a strong force and at varying speeds e.g. 1000-6000 RPM Its output is rectified via a 3-phase bridge rectifier The ...
0
votes
0answers
20 views

Bi-stable switch activated in both directions by a momentary electrical input

I am trying to find or build an electro-mechanical "switch" for a unique application. It should act a little bit like the snap switch used in thermostats (where a bi-metal disk snaps from concave to ...
1
vote
0answers
19 views

Does a hybrid DC relay suffer from contact erosion (albeit much less than normal), or is it effectively eliminated?

Given a hybrid DC relay, I've been wondering if contact erosion is occurring (albeit at a slower rate), or if the design eliminates this entirely. (Assume that there is no snubber or other contact ...
1
vote
3answers
113 views

What does it mean to soft switch a relay?

I am specifying a relay I/O card for a Beckhoff PLC. (Link to an overview of Beckhoff digital output slices, scroll to see Relay section) Some of the relays have ...
1
vote
1answer
62 views

What were the transfer curves of major recording technology from Wax cylinders to HiFi electronics? [closed]

I am interested in the evolution of the quality / fidelity of audio recording. Specifically in the actual frequency response curves and dynamics behavior of those technologies, not just rough ideas. ...
0
votes
1answer
96 views

Avoiding mechanical shock damage on a PCB

I'm currently working on a PCB design that will have to go in a plastic enclosure. This plastic enclosure will have to endure severe shocks (dropped from 2m to ground) so I'm looking for ways to ...
3
votes
2answers
189 views

Anyone got these optical encoders working? [closed]

I got these Optical Encoders from a local vendor and connected it to my arduino in the following order; (+)----> 5v (-)---> Gnd (01)--->2 (02)--->3 But, it burnt and smoked out as soon as I ...