Latest Optical Sensors Technical Articles

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Understanding Piezoelectric Accelerometer Basics

Learn about piezoelectric accelerometers, namely the piezoelectric effect, how piezoelectric materials generate electricity, the different accelerometer design modes, and their upper and lower frequency limits.

March 20, 2022 by Dr. Steve Arar

The Role of Optical Sensors in Electronic Applications

This article outlines the principles of operation of optical sensors, optical sensor types, considerations for optical sensor selection, and key applications.

November 12, 2021 by ROHM Semiconductor

Medical Applications for Micro-Force FMA Sensors

In this article, we will discuss the different applications of Micro-Force FMA Sensors in the health industry.

May 07, 2021 by Sager Electronics

Cold Chain Asset Tracking

In this article, we will discuss a proposed Cold Chain Asset Tracker with data logging capability with the use of Lapis Technology.

April 29, 2021 by ROHM Semiconductor

Types of Magnetometers

This high-level guide introduces common types of magnetometers, including scalar, vector, gradient, and more.

April 12, 2021 by Ignacio de Mendizábal

Understanding the Heterogeneous Graphics Pipeline of i.MX RT1170 MCUs

In this article, learn about the heterogeneous graphics pipeline of the i.MX RT1170 MCU and its three main graphics acceleration engines.

March 18, 2021 by Hugo Osornio, NXP Semiconductors

Developing Robust Motion Detectors Does Not Have to Be a Moving Target

This article discusses some concepts for ensuring motion detector designs will be robust to external disturbances by presenting an infrared detector assembly that can significantly reduce the parts count and improve product performance and reliability. 

February 23, 2021 by Ryan Sheahen, Littelfuse

Introduction to Photosensitive Integrated Circuits

This article continues our introductory discussion of light-sensitive components that produce higher output-current amplitude than photodiodes.

January 27, 2021 by Robert Keim

Introduction to Phototransistors

In this series of articles, we’ll explore higher-output-current alternatives to photodiodes.

January 26, 2021 by Robert Keim

The Glass Cockpit: The Story of Display Technologies in Space Shuttles

In this final part of the Glass Cockpit series, we look at how displays have reached their current iteration in Space X shuttles.

January 10, 2021 by Steve Taranovich

Touchscreen vs. Button Interface Design: Capacitive and Resistive Touchscreens and Haptics

Learn about some of the most important fundamentals for understanding how interface technologies have evolved.

January 07, 2021 by Steve Taranovich

Understanding the Photodiode Equivalent Circuit

This article presents a circuit model that helps us to analyze the electrical behavior of a photodiode.

December 23, 2020 by Robert Keim

Characteristics of Different Photodiode Technologies

Learn about the differences between silicon photodiodes and photodiodes made from other semiconductor materials.

December 21, 2020 by Robert Keim

Understanding Photovoltaic and Photoconductive Modes of Photodiode Operation

In this article, we’ll look at advantages of two types of photodiode implementation.

December 20, 2020 by Robert Keim

The Physical Operation of Light-Sensitive pn Junctions

In this article, we’ll delve into semiconductor physics to better understand the operation of photodiodes.

December 18, 2020 by Robert Keim

Introduction to Photodiodes: The Nature of Light and pn Junctions

Learn about how semiconductor devices interact with electromagnetic radiation to enable electronic detection of light, UV, and infrared.

December 16, 2020 by Robert Keim

Introduction to CMOS Image Sensors

In this article, you'll learn the basics of the CMOS image sensor, including its core components, its block diagram, its strengths and weaknesses, and its applications.

November 09, 2020 by Dr. Steve Arar

How to Implement Digit Recognition with TensorFlow Lite using an i.MX RT1060 Crossover MCU

This article looks at digit detection and recognition using MNIST eIQ as an example, which consists of several parts — the digit recognition is performed by a TensorFlow Lite model, and a GUI is used to increase the usability of the i.MX RT1060 device.

September 22, 2020 by David Piskula, NXP Semiconductors

Determining Dynamic Range of CCD Image Sensors

This article explains how CCD construction, operating parameters, and external signal-processing circuitry contribute to the maximum variation in luminance that CCD imaging hardware can capture.

May 29, 2020 by Robert Keim

Quantum Efficiency and Signal-to-Noise Ratio in CCD Image Sensors

In this article, we’ll draw upon our knowledge of noise sources and combine it with some new information to create a comprehensive model for CCD noise performance.

May 25, 2020 by Robert Keim