Photo Current to voltage conversion

Thread starter deepak4prp
Start date Aug 1, 2012
Tags

Current Photo Voltage

AI Thread Summary

A current to voltage converter is essential at the output of photo detector circuits to transform the generated photocurrent into a measurable voltage signal. This conversion allows for easier monitoring and analysis of the signal, as voltage can be more conveniently processed and interpreted in electronic systems. Without this conversion, the weak photocurrent produced by the detector would be difficult to measure accurately. The discussion emphasizes the importance of this conversion for effective signal processing in various applications. Overall, a current to voltage converter is crucial for optimizing the performance of photo detector circuits.

Aug 1, 2012

deepak4prp

Why do we require a current to voltage coverter at the output of a photo detector circuits?

Physics news on Phys.org

Aug 1, 2012

berkeman

Admin

deepak4prp said:

Why do we require a current to voltage coverter at the output of a photo detector circuits?

Welcome to the PF.

What are your thoughts on this? How else would you convert the photocurrent to something that can be monitored...?

Thread 'Free surface problem in electrohydrodynamics'

I'm thinking about the following problem. I have an electrified fluid with a constant charge density,

, within the fluid. Will this necessarily yield a surface charge? Would I have to compute it by looking at the displacement fields on either side of the interface? Would it change if the bulk charge within the fluid remains constant?

View full post »

Thread 'Maxwell stress tensor'

This is from Griffiths' Electrodynamics, 3rd edition, page 352. I am trying to calculate the divergence of the Maxwell stress tensor. The tensor is given as

. To make things easier, I just want to focus on the part with the electrical field, i.e. I want to find the divergence of

. In matrix form, this tensor should look like this...

View full post »

Thread 'Applying the Gauss (1835) formula for force between 2 parallel DC currents'

Please can anyone either:- (1) point me to a derivation of the perpendicular force (Fy) between two very long parallel wires carrying steady currents utilising the formula of Gauss for the force F along the line r between 2 charges? Or alternatively (2) point out where I have gone wrong in my method? I am having problems with calculating the direction and magnitude of the force as expected from modern (Biot-Savart-Maxwell-Lorentz) formula. Here is my method and results so far:- This...

View full post »