Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [plastic]

23 questions
47
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6 answers

Is there a technical reason why most touch screens use glass rather than plastic?

Most modern touch screens in portable devices are made of glass. This glass often breaks if accidentally dropped. Also, it is very reflective, making it difficult to use in strong light. I know that touch screens without glass exist. For example,…
Fiksdal
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3 answers

What kind of rubber "melts" plastic?

I know this should probably be posted in a chemistry exchange, but I figured the parts are pretty standard electronics equipment that the question might be more relevant here. So a couple of breadboards had been lying in a box with a rubbered…
Viktor Hedefalk
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14
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6 answers

How to stop plastic granules sticking to the iron wall of their silo?

In our factory, we have some large (8 meters tall and 3 meters in diameters) iron silos for storing the plastic compounding material. Every time the silos are getting unloaded from the granules, the plastic powders stick to the inner metal layer due…
Farzin Karimi
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3 answers

Technical term to define "the grooves" feature in a plastic enclosure

What is the technical term to define those grooves indicated by the arrows, in the attached picture?
Adrian Ionescu
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6
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2 answers

What clear plastic stripping is used to wrap a toroidal power transformer?

I'm partially rewinding a toroidal transformer just for the pure thrill of controlling the output voltage. I'm sure I'll get over it, but for the moment that prospect is pretty exciting for some reason :) I'm leaving the 120V primary in place (I…
scanny
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What are the square holes for in most electronic project boxes?

I'm new to the electronic scene and lately I been purchasing a lot of project boxes for the stuff I make, I've noticed in about 75% of the boxes I purchase they come with small square shaped holes on both the base and the lid, I assume these are for…
Simon Hayter
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Fixing/Replacing Conductor Ribbon Cable

I tried to fix a keyboard that was having some intermittent issues by cleaning the conductors on the ribbon cable. I used an emery-board to rub off the rust and patina on the pins at the end of the ribbon, but it turns out that the pins are really…
Synetech
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Are stand-offs unnecessary when the case is made of plastic?

If a case is plastic, would there be any real benefit to using stand-offs to ensure the circuit board is not in contact with the side of the plastic case? Even when the plastic is non-conductive? (The context here is the casual, do-it-yourself…
John
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Suggestion for ESD Chassis Ground for Battery-Operated Device with Plastic Enclosure

We are developing a wearable device that is battery powered which is enclosed with a plastic enclosure. As a requirement for safety, we submitted the device for EMC testing, which includes Indirect ESD (Air Discharge of 15kV) and Direct ESD of 8kV.…
kasijadi_lightnium
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Distance measurement to liquid plastic

What's the best way to find out how much plastic I got in a container? Characteristics: It's slimey It's liquid It's sticky Its electrical resistance is very very high It's very warm(250 degrees celsius) Sometimes it will be see-through plastic…
Harry Svensson
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Would a small 5V powered PCB (e.g. Pi Zero) inside a PLA plastic enclosure be OK?

I have a small 5 V PCB e.g. a Pi Zero. This is inside a PLA plastic enclosure currently. It is quite considerably larger than the PCB approximately 5x as wide and 3x as tall. The PCB is raised above on feet so there is airflow above and below. Holes…
sungstack
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Thermoplastic-based touch panels: why not?

(I'm new to EE.SE, so I don't know if this is on-topic here. Please forgive me.) From what I understand, capacitive touch technology relies on coating one side of a resistive material with a conductor; this conductor is usually indium tin oxide, and…
Tortoise
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Grounding inside a plastic enclosure

I hope this is an easy question for you. I am using a plastic box as a watertight enclosure for a single board computer and some accessories. I will be using an AC power source coming in through a 3 wire wet pluggable bulkhead connector. It is then…
imno1
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Is it possible to make a plastic touch screen as sensitive and accurate as a glass one?

I learned in this answer that touch screens with a glass front are generally more sensitive and accurate than those with plastic fronts. This corresponds with my personal experience. However, is there a way to bring devices with plastic fronts up to…
Fiksdal
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How to detect non magnetic material?

I want to design a paintball counter. I have a metallic or plastic tube through which a paint ball passes. How can I detect that the ball passed? What kind of sensors do I need? I cannot see the ball from both ends of the tube, thus I need a sort of…
Napster
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