All Questions
8
questions
1
vote
0
answers
37
views
replacing the sound a small toy speaker makes
not sure if this counts for this community, and im open to suggestions where this would belong but im looking for advice.
i have no experience in working with physical hardware, as the limited ...
- 11
2
votes
0
answers
24
views
Why is it desirable to have high g value for sensing applications, while high d value is desirable for actuation in piezoelectricity?
In piezoelectric materials, two parameters are defined to construct relations between electrical and mechanical energy conversions. These parameters are the charge constant d and the charge constant g....
- 471
1
vote
0
answers
53
views
Need to generate mechanical vibrations for experiment in ISS
For a school scientific experiment to be flown onboard the ISS in a few months, I need to generate mechanical waves in a cylindrical capsule made of polycarbonate filled with oil (height about 9 cm, ...
1
vote
0
answers
34
views
Creating a rotating unit with the extended arms varying the trajectory in accordance to ODE's
I plan to mimic binary stars and their orbital decay due to gravitational wave radiation. I want to make a rotating shaft with extended arms, each being able to hold cast iron balls of specific weight,...
- 161
7
votes
2
answers
5k
views
Why manufacturers prefer Brass over Copper in electrical conductors?
I am working on product where we need pogo pins, as copper is better conductor of electricity I was searching for the copper pogo pins. After about a month of searching, it is come to my notice that ...
- 203
3
votes
1
answer
914
views
Piezoelectric matching/backing layer materials
To maximize the piezoelectric transducer reception/transmission power we must choose the correct backing/matching layer materials, I'm working on a project to measure a steel tank liquid level (non ...
- 133
1
vote
3
answers
170
views
Is epoxy the best way to permanently attach a small PCB to a mechanism that will be vibrating?
PCB module is about the size of a nickel and has an ARM processor and a sensor chip or two, plus a connector with 5 or 6 wires.
Module must be firmly attached to device because device will be ...
- 275
8
votes
3
answers
592
views
Protecting device from microwaves in microwave oven.. but allowing Bluetooth?
I am building a device that needs to be inside of a microwave oven but somehow needs to communicate with another device outside of the microwave.
How can I reflect microwaves so they don't come into ...
- 183