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Questions tagged [conductive]

Applies to a device or a material and describes either electrical or thermal conductivity. As opposed to insulative. This is a qualitative term in which the boundary between conductive/insulative will vary according to application/use.

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Suggestions on conductive materials for textile capacitive pressure sensors

I am doing preliminary research for my thesis. The thesis involves textile capacitive pressure sensors. I am trying to find out more about how the type of conductive material used affects the ...
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1answer
62 views

Is there a thin metal film that I can solder wires to?

For instance, I bought some Dremel bits and inside the packaging were these small extremely thin pieces of metal film. Not sure what they were used for or what metal they were made out of. It ...
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Heat Conduction from ceramic resistor to iron rod

I'm trying to conduct a thermal conductivity test. I've set up an experiment where I take a rod of a given material (steel, for example), measure its cross section, length, extreme temperatures and ...
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Transparent Conductive Paint

Does anyone know of a transparent conductive paint? I am creating some home made electroluminescent panels and I need something what would work with water based polyurethane. Ive had some luck with ...
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0answers
78 views

Aluminium foil not blocking IR signal

I am using an IR sensor (vishay tsop32 series) but I want to ensure that it only sender directly ahead so I made blinders out of pla and covered them in aluminium foil. However it seems that despite ...
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3answers
126 views

Cockroach or insects triggering conductive ink sensor

I want to modify a cockroach to get it to trigger a conductive ink sensor or Arduino with foil capacitive touch setup. At the moment there is no reaction as far as I can see (in the serial monitor) ...
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978 views

Red resin in-between closely spaced PCB pads

Closely positioned components on this one sided PCB have red resin separating solder connections and underneath surface mount components. What is it? How is it applied and why do only some ...
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177 views

How to create Heating pad with conductive thread

I will need to create a heating piece of 60cm * 5 cm with appx 30degree celcius.(sufficient warm to change thermal ink) Hence, I am creating a customised heating pad for underlying fabric with ...
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1answer
71 views

Is there a conductive spray (not paint, ink and tape, only spray)? [closed]

I heard that there is a conductive spray. So I'm looking for a conductive spray (not paint,ink and tape). But I could not find sites for selling conductive sprays. I bought a silver zinc coat spray....
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2answers
275 views

Design a PCB using Kapton film

I am a novice in electronics and wanted to design PCB , as a final year project i am planning to do something related to room heaters so i have decided to use Kapto/polymide material for that. I am ...
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3answers
305 views

Lightning turbine? Can lightning be divided this way? [closed]

Can lightning be collected and divided (to lengthen pulse) through different lengths of heavy gauged wire proportioned to carry the current into a large but simple electromagnet? Then could that ...
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3answers
101 views

Temperature tolerant conductive ink

At my workplace we have expensive PCBs that are used for testing. These PCBs have conductive pads which wear out by time since they come in contact with pogo pins. These boards operate at temperatures ...
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2answers
113 views

How does Touch Board work?

Some days ago I saw this device called Touch Board. It looks a bit like an Arduino (in fact it's based on Arduino). You can connect conductive materials to it, like aluminium foil. The board is able ...
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1answer
221 views

Question about Skin depth

It says that the energy of the EM wave decays rapidly if it travels through a good conductive material. Therefore, much of the wave is travelling on the surface of the copper wire. (since it decays ...
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3answers
660 views

Making conductive traces for capacitive touchscreens

This is a follow-up to this question I asked years ago. A short summary: I'm using a head pointer (see my linked question for a photo) with a tip made of plastic, thus non-conductive. The shaft is ...
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1answer
260 views

How to measure resistance of resistance of gel electrolyte using multimeter

How can I measure the resistance of a gel electrolyte using a multimeter? I know the formula to measure the conductivity of a gel electrolyte is k = (1/R) * (d/a) where k is the conductivity (S/cm),...
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2answers
706 views

Chipquick SMD291 No-clean Paste Flux - Conductive?

I'm using this brand and type paste flux, and it works very well... except for one small problem. After assembling 5 prototypes, most had bizarre issues, which were resolved when the flux was removed ...
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1answer
224 views

Conductive magnet to read resistor value?

I want to know if I can hook-up a resistor to one part of a Magnet Snap (carried by SparkFun), then another magnet snap to analog-pin on Arduino and still be able to read resistance value? Is this ...
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2answers
91 views

Is it possible to calculate the position of touch on a conductive thread?

I have a conductive thread of about 2 feet (0.65 m). I would like to be able to sense the position of touch. I was hoping that the resistance of the thread would change at constant rate along the ...
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1answer
92 views

Conductive welding primer on fabric

I saw the discussions about conductive fabric with the links to lessemf.com and others. I'd like to get anyone's thoughts about painting a schematic on cloth using welding conductive primer such as ...
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3answers
25k views

Anti-static vs. conductive vs. dissipative foam?

UPDATE: I have included some basic answers inline that I received after talking in depth with an application engineer at a foam company. I think it would still really help for someone to help flush ...
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1answer
1k views

Looking for a transparent conductive spray/paint/ink

I know there are conductive sprays available, but these are strongly coloured due to the metals inside them. I am trying to make a (dry) wooden surface capacitive, but would like to have the feel and ...
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4answers
3k views

Can I use staples to hold down electric wire?

I'm building a very small game for my brother. I am moving it from the original, ready-printed motherboard to a sheet of metal. The metal doesn't have holes punched in it, and I need a different way ...
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3answers
181 views

What is the easiest most cost effective way to print conductive ink?

I've designed some interesting prototypes with conductive paint (bare paint). I'd like to see if I can make them more space efficient via some sort of printed design. However, I would like to keep ...
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2answers
14k views

Can I use foil as a wire for my project in tight spaces?

I am building a project that I can put a AA battery into a little compartment. The battery fits fine without anything else in it, but when I put a wire in, it gets tight. A solution that might work: ...
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5answers
34k views

How is saltwater able to conduct electric charge between two wires?

Say I put some wires in a container filled with saltwater, but the wires do not touch, and I connect these wires to a battery: simulate this circuit – Schematic created using CircuitLab I know ...
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3answers
5k views

How do I verify if a conductive mat is getting “Earthed”

Explaining to me about electricity is like explaining to your Grand-Ma about it. So please be kind and gentle :) I bought an Earthing Mat from "http://www.amazon.com/dp/B003RLOBOK". It includes a ...
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3answers
15k views

is there some sort of paste, grease, spray or similar thing that helps make more contact surface for high-current battery?

I have terminals attached to a battery, which will conduct high-current (40A to 200A), and these are copper plates. As the plates, and battery terminals are not perfectly even (even if they appear to),...
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1answer
759 views

Conductivity of water, and risk of shock? (fact checking)

Through simple researching I have discovered the unit of siemens (being a reciprocal of ohms). Now I wish to apply this to a (silly) scenario where the conductivity of tap water is 800µS/cm (from ...
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1answer
92 views

What is the most available hitemp superconductor for samples and study?

I could only find one named Amperium on the web, but not on the eBay or any little shops. It is very interesting material with conductivity 40 times better than copper. Is it possible to buy anywhere ...
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2answers
430 views

Can I use conductive silicone for anything I could use solder for?

I got my hands on a big tube of conductive silicone. I've never heard of it before, but my first thought was, "Is this just basically wire in a tube?" Has anyone ever used this before? Can you just ...
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1answer
218 views

Is there a conductive tape product that conducts from top to bottom?

I have an application where I need to place something conductive, like aluminum foil, to a contact where an object will be sliding onto. So it needs to be adhesive on one side, yet conduct from the ...
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5answers
284 views

Conductive Fabric [closed]

Does anyone know of a maker of Conductive Fabric?
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3answers
987 views

conductive paint + water =?

I'm trying to create an outdoor installation with simple embedded electronics. I was hoping to use conductive paint to connect leds. The leds would be covered (waterproof) but the conductive paint ...
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1answer
349 views

Conductive Thread - non toxic?

Is the conductive thread non toxic? Safe to wear up against your skin for extended periods of time?
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7answers
558 views

Is there a way to print / draw a circuit on to clothing?

I'm looking for an alternative to conductive thread (since I lack some sewing skills). I have seen silver conductive pens but I'm wondering if they could be used for clothing?
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4answers
3k views

Is there a way to make your own conductive thread for wearable electronics?

I am a poor student, was wondering if anyone has any home-brew recipes for making conductive thread for use in wearable electronics?