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Sensors Technical Articles
Test & Measurement
Introduction to Capacitive Touch Sensing
In this article, we will take a detailed (but not too detailed) look at the electrical principles that allow us to detect the presence of a human finger using little more than a capacitor....
May 24, 2016
Industrial Instrumentation and Control: An Introduction to the Basic Principles
In part one of this instrumentation and control (I & C) series, we'll go over the fundamental terminology and concepts used when working with industrial plants....
September 28, 2016
Understanding and Applying the Hall Effect
Learn about the Hall effect and how it enables accurate, isolated current measurements.
July 03, 2015
How Sensor Fusion Works
Sensor fusion is the art of combining multiple physical sensors to produce accurate "ground truth", even though each sensor might be unreliable on its own....
July 19, 2016
Circuits and Techniques for Implementing Capacitive Touch Sensing
This article presents some basic cap-sense circuit configurations and discusses how to deal with low- and high-frequency noise.
May 30, 2016
How to Design a Bluetooth Low Energy Circuit with Sensor Technology
Tutorial on designing a Bluetooth Low Energy (BLE) circuit with the ability to measure 9-axis motion, humidity, and temperature.
October 14, 2016
Don’t Get Lost in Deep Space: Understanding Quaternions
Quaternions are mathematical operators that are used to rotate and stretch vectors. This article provides an overview to aid in understanding the need for quaternions....
March 10, 2017
Introduction to Temperature Sensors: Thermistors, Thermocouples, RTDs, and Thermometer ICs
Learn about various types of temperature sensors and each of their advantages and disadvantages.
June 05, 2017
Analysis of Forward Conducting Diodes
In this article, we will learn how to analyze circuits that utilize forward conducting diodes. We will also talk about the exponential model, constant voltage drop model, as well as the ideal...
June 17, 2016
The Inverting Configuration of an Amplifier
Mentioned in the previous article, an operational amplifier is usually connected to components in a feedback circuit. In this article, we will discuss one of two amp configurations that are...
April 13, 2016
Interpreting Current-Voltage Curves of Different Materials
This article discusses the ideas involved in measuring and interpreting the current-voltage curves of solar cells, batteries, and unknown materials....
February 24, 2017
Characteristics of Junction Diodes
In this article, we will look at the characteristics of junction diodes and learn how to analyze circuits containing diodes that operate in the forward, reverse, and breakdown biases....
May 20, 2016
How to Use a Diode as a Thermometer
This article, part of AAC’s Analog Circuit Collection, presents a straightforward circuit that allows you to measure temperature with little more than a diode and a BJT....
February 16, 2018
Negative Feedback, Part 8: Analyzing Transimpedance Amplifier Stability
The techniques discussed in previous articles can help us to understand and remedy stability problems observed in a common circuit used to amplify photodiode signals....
December 06, 2015
Measuring and Calculating Lux Values
Learn how to translate the output of a photosensor into an illuminance measurement.
January 13, 2016
Understanding Illuminance: What’s in a Lux?
A practical introduction to quantifying perceived light intensity.
January 11, 2016
An Introduction to Motion Sensors: PIR, Tilt, Force, and More
Learn about various movement-type sensors including accelerometers, tilt sensors, vibration sensors, PIR (passive infrared) sensors, and rotation sensors....
June 19, 2017
Exploring UC Berkeley’s Wearable Sweat Sensor for Monitoring Dehydration
Researchers develop a wearable sensor for detecting important analytes in sweat for monitoring dehydration.
April 17, 2017
Overview of the BLE Solar Beacon from Cypress Semiconductor
Transmit humidity and temperature data with a fully functional, off-the-shelf, battery-less wireless sensor node.
April 27, 2017
What Is LiDAR and How Can I Use It?
Learn the basics of what LiDAR is, how it works, and how it's applied.
August 11, 2016
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