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Results tagged with capacitive
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user 35530
Based on the usage of capacitors, condensators. Alternatively, utilizing the derivative of signals.
3
votes
Accepted
High pass filter is not resulting as good as the scope's AC coupling
Either your capacitor has some leakage so it causes a bias in the output voltage:
simulate this circuit – Schematic created using CircuitLab
Or whatever you are connecting it to has some nA of …
1
vote
Capacitive Moisture Sensor - Is AC or DC better/more accurate?
I'll resist baring anything with you, but inexpensive RH sensors are usually capacitive- using a hygroscopic (moisture absorbing) polymer. …
1
vote
Capacitive Switch To Distinguish Between Metal and Plastic
If there is a large capacitance change (measure it!) I don't think you'd have any problems using that, though I am not sure if there is a "canned" chip- most capacitance touch or proximity application …
6
votes
How to make 1 bit permanent memory circuit?
A simple solution would be a micro controller such as a PIC12F635 which is available in an 8-pin DIP or smaller, and has a built-in clock and brown-out reset circuit (the latter is important to mainta …
6
votes
Given a load, how do you calculate whether it is capacitive or inductive?
At any given frequency the network has an impedance that is just a single (complex) number, and if the imaginary part is negative then it's capacitive (at that frequency) and if the imaginary part is positive … It's not uncommon for parts to be mostly resistive at one frequency, mostly capacitive at another, and inductive at another frequency. See, for example, ferrite beads. …