Questions tagged [electrode]
The electrode tag has no usage guidance.
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Should Liquid Level Sensors be supplied AC or DC
Liquid level sensors often use two probes, when the resistance between those two probes changes with reference to the level of the liquid between them, that change is resistance is read as change in ...
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Body impedance and electrical stimulation. What is the skin load in electrical stimulation?
An electrical stimulator device like Geko T-1 provides a 27 mA output current. On the specification for the load impedance range they mention a 200 Ω to 3 kΩ range for 27 mA output. How did they ...
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How to solder stainless steel electrode to PCB pad?
My goal is to solder stainless steel electrodes to a PCB in order to make a device that can measure differential voltage measurements from a surface.
How do I attach stainless steel to a PCB to create ...
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What is the working principle of a potentiostat? What role does the reference electrode play?
I am trying to understand the working principle of a potentiostat instrument, which is used as impedance analyzer in a three-electrode cell system setup.
By referring on the circuit below, any current ...
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How to properly connect metallic conductors to graphite electrodes?
I want to prepare graphite electrodes for electrolytic experiments.
I am therefore looking for good ideas on how to get very intimate, long term stable and low resistance connection between the ...
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Which electrode configuration should have the highest electric field produced?
I'm currently simulating the the electric field produced by different types of electrodes.
The electric field is observed on the insulator that is sandwiched between 2 electrodes, one being 10 kV ...
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Can someone please explain the concept of an electrode being left "floating"?
I am looking at a stimulation system where one contact on an electrode is modeled as a Dirichlet boundary condition (the contact that is active), while the other contacts on the electrode that are ...
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69
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Why are the cylindrical and spherical electrode potential equations different from each other?
There isn't any information about the calculus performed to find these equations but the book says: One dimensional Laplace equation for the cylindrical coordinates depending on the variable "r&...
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How To Connect Electrodes to Transimpedance Amplifier? [duplicate]
I wrote a post earlier last week asking the same question, but I have better information now. I have a microfluidic cell with silver electrodes with 1mm diameter and about an inch long. I need to ...
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How To Connect Silver Wire Electrodes to Transimpendance Amplifier
As the title suggests, I need to connect silver electrode wires that are about 1 inch long and 1mm diameter (sticking rigidly out of a microfluidic cell) to a transimpedance amplifier. The problem is ...
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Is one RLD electrode enough for multichannel ECG acquisition system?
I am trying to design the multichannel ECG measuring device. My device has to acquire 3 signals at the same time. I have to use 6 electrodes to be able to measure those signals. My problem is each ...
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How to derive electrochemical two-electrode test strip op-amp voltage output?
I've been trying to understand the following electrochemical test strip in a simplified self-biased configuration diagram:
It appears to be an inverting op amp filter circuit but then gain = - Rs/0 = ...
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Activating a circuit with a change in resistance
I am trying to solve a work related issue. Long story short, I have a circuit that monitors the resistance between two electrodes. When an object passes by these electrodes, the resistance reduces ...
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Why an does an offset on the reference electrode create an offset on the measure electrode of a pH probe?
I am making an analog front end for a pH probe. I encountered a design where creating an offset on the reference electrode creates an offset on the measure electrode.
How does that work? Does the ...
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Are electrode based, water level monitoring systems safe?
I want to install a pump control with water level monitoring system.
I've seen all kind of sensors, ultrasonic, infrared, mechanical (Based in pressure switch's / float valves), etc.
One of the most ...
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