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A four-colour optical detector circuit

Assaad, Maher and Yohannes, Israel (2013) A four-colour optical detector circuit. [Citation Index Journal]

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Abstract

In this article, a new architecture for a four-colour optical detector circuit is presented. The proposed detector uses a photodiode as its basic light transducing element and a mixed signal readout circuit for signal processing and decision making. The readout circuit requires only two comparators, two multiplexers and a few logic gates to produce a digital 4 bit output that represents the right colour detected. The proposed detector is advantageous because the number of required components is fixed even if the number of detected colours is increased. The feature of having a fixed number of elements while increasing the number of detected colours is important especially in component count (i.e. low cost) and low power consumption. The proposed detector can be used as an autonomous and portable real-time pH monitoring applications. The objective of this article is to present a validation of a novel four colour sensor architecture using simulation and experiment as a proof of concept for a future implementation as a CMOS integrated circuit using the Austria Microsystems 350 nm technology.

Item Type:Citation Index Journal
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Academic Subject One:Academic Department - Electrical And Electronics - Pervasisve Systems - Analogue Electronics - Analogue Integrated Circuit Design
Departments / MOR / COE:Departments > Electrical & Electronic Engineering
ID Code:9001
Deposited By: Dr Maher Assaad
Deposited On:07 Mar 2013 03:42
Last Modified:25 Oct 2013 02:17

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