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Sensors Technical Articles
Test & Measurement
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
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
How Do Time of Flight Sensors (ToF) Work? A Look at ToF 3D Cameras
How do time of flight sensors determine distances? Learn more about ToF cameras using an example 3D camera.
May 08, 2019
Introduction to MEMS (Microelectromechanical Systems)
This article explores basic characteristics and common applications of a technology that has been incorporated into a wide variety of high-performance electronic devices....
December 04, 2018
How to Interpret IMU Sensor Data for Dead-Reckoning: Rotation Matrix Creation
Working with IMUs can maddening for a variety of reasons, but what scares people the most is usually the math.
April 23, 2019
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
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
Understanding and Implementing Charge Amplifiers for Piezoelectric Sensor Systems
In this article we’ll explore a circuit that produces an output voltage proportional to the charge generated by a piezoelectric transducer....
October 22, 2018
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
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
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
Understanding and Modeling Piezoelectric Sensors
This article explains some theory behind piezoelectric sensors and presents an equivalent circuit that you can use when you’re designing sensor systems....
October 15, 2018
How to Design Charge Amplifiers for Piezoelectric Sensors
This article explores charge-amplifier design details, including ESD protection and frequency response.
October 23, 2018
The Circuit Designer’s Guide to Photovoltaic Cells for Solar-Powered Devices
This article presents the equivalent circuit for a solar cell and discusses some implementation details.
May 30, 2018
Structures for Implementing Finite Impulse Response Filters
This article will review some basic structures to implement Finite Impulse Response (FIR) filters.
October 04, 2017
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
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
Understanding Illuminance: What’s in a Lux?
A practical introduction to quantifying perceived light intensity.
January 11, 2016
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