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Sensors

Carolyn Mathas
Editor
This site that gives a sense of what’s happening in the world of sensor technology and helps designers to stay current with new trends, good technological ideas, novel materials, and products. Optimum and robust design ideas combined with innovative techniques showing how-to-interface and condition sensor outputs are some of the areas explored. Mathematical aspects of sensor accuracy, temperature, and linearization tracking and correction are some of the many and varied areas to be explored.

Electromechanical measurements with an oscilloscope

Get a primer on making electromechanical measurements such as force, acceleration, pressure, temperature, and rotational speed. Read More...

Thermowell vibration monitor

Use TI's unique inductance-to-digital converter to sense potentially dangerous vibration in thermowell sensors. Read More...

Powering image sensors in automotive camera applications

Learn about the design of efficient, low noise power supply subsystems by following the reengineering process for an existing camera module. Read More...

Design and optimize electrodes for projected capacitive sensors

This article presents a circuit model combined with a cross-components influence to model the physics in projected capacitive sensors. The model predicts the unique response characteristic of the electrodes successfully, and a set of design guides for optimizing the performance is derived from it. Read More...

Crystal Oscillator Fundamentals and Operation—Part II

In Part I of this article series, we discussed the basics of oscillation and gave an overview of different types of oscillators. In Part II, we’ll cover in detail the working of a crystal oscillator and different parameters associated with its operation. Read More...

In the pits with FIRST Robotics

EDN visits a FIRST Robotics competition for a look at what future engineers design, build, and operate. Read More...

Using MCUs in Cell Phone and Tablet Apps

This article discusses the role of MCUs and programmable system-on-chip (PSoC) devices in cell phone and tablet applications. It also evaluates the system limitations and design challenges for these applications. Read More...

Accelerometer and Gyroscopes Sensors: Operation, Sensing, and Applications

MEMS give the user a new way to interface with their smart device. This paper is an overview of MEMS: the principle of their operation, the sensing mechanism, and a variety of potential applications. Read More...

Designing for IoT—Part IV—The Cloud

Some IoT systems may not need back end services, but the majority of the currently envisioned IoT systems rely on the collection, processing and usage of data by the IoT devices and for this, some form of Information Technology different than embedded systems is required Read More...

Designing for IoT—Part III—Internet Usage and Protocols

This segment looks at the Internet, its usage by IoT devices, and the existing and new Internet protocols supporting the explosive growth of this new industry. Read More...

>> SEE ALL

Thermowell vibration monitor

Use TI's unique inductance-to-digital converter to sense potentially dangerous vibration in thermowell sensors. Read More...

Bed levelling for 3D printer

3rd prize winner in the TI LDC1000 design contest. Read More...

Linearize thermistors with new formula

Optimize thermistor performance at any preferred temperature. Read More...

Measure two resistive sensors or multiple switches with a single Schmitt

When an ADC is overkill, you can monitor two sensors or several contacts for every Schmitt trigger. Read More...

Light-controlled oscillator uses solar cell junction capacitance

Learn how solar cell characteristics can be harnessed for a light-sensitive oscillator. Read More...

Bender senses shocks

With the aid of a simple mounting system and some soldered-on weights, a piezoelectric “bender” can detect mechanical shocks. Read More...

Photo meter assesses ambient light

When most PN-junction diodes are reverse biased, they will produce a small photovoltaic output as the light level is increased. Read More...

Circuit synchronizes sensors and cameras

Trigger circuits provide measurements and images at the right time. Read More...

Linearize optical distance sensors with a voltage-to-frequency converter

Create the mathematical inverse of an analog voltage by converting it to frequency and measuring the period. Read More...

Fabricate a high-resolution sensor-to-USB interface

A precision analog acquisition system fits in your pocket. Read More...

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Akustica’s MEMS microphones for smartphones and wearables

Akustica added four new high-performance analog microphones to its high definition (HD) voice product line, including the AKU346, the industry’s smallest MEMS microphone to achieve 64dB SNR. Read More...

Current transducers measure to 25A, in PCB-mount format

LEM has added to its range a series of open-loop Hall-effect ASIC based devices measuring up to 25A DC, AC or pulsed Read More...

Self-encrypting drive wipes itself out if breached

Toshiba's MQ01ABUxxxBW series of self-encrypting drives automatically erases data when an HDD is accessed by an unregistered system. Read More...

Disposable and rugged BP sensor

Merit's BP sensor uses piezoresistive technology. Read More...

CMOS sensor supports portable HD video at 240 frames/s

With its T4K82 13-megapixel BSI CMOS image sensor, Toshiba Electronics Europe will enable smartphones and tablets to record full HD video at 240 equivalent frames per second. Read More...

Get eight 12-bit channels over USB 3

Pico Technology's PicoScope 4824 provides eight 12-bit analog inputs and a waveform generator onto a PC-based package that runs over USB 3.0. Read More...

Global location chip targets wearables

Broadcom claims to offer the industry's first Global Navigation Satellite System (GNSS) SoC, designed for low-power, mass-market wearable devices such as fitness trackers and smart watches. Read More...

Depth-sensing image sensor array touted for smartphones

Heptagon Micro Optics, a developer of small cameras, has announced that a 2 by 2 3D imaging system is ready for mass production and use in smartphones, phablet and tablet computers. Read More...

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Thermometer measures temperature without contact

The Melexis infrared thermometer makes it safe to measure the surface temperatures of hot, hazardous, or hard-to-reach objects without having to physically touch them. Read More...

Christmas toys: Paper Jamz guitar relies on printed electrodes and connectors

Pry inside a toy electronic guitar that provides a surprisingly good approximation of an electric guitar. Read More...

>> SEE ALL

Design and optimize electrodes for projected capacitive sensors

This article presents a circuit model combined with a cross-components influence to model the physics in projected capacitive sensors. The model predicts the unique response characteristic of the electrodes successfully, and a set of design guides for optimizing the performance is derived from it. Read More...

Crystal Oscillator Fundamentals and Operation—Part II

In Part I of this article series, we discussed the basics of oscillation and gave an overview of different types of oscillators. In Part II, we’ll cover in detail the working of a crystal oscillator and different parameters associated with its operation. Read More...

Getting to know the IoT

It’s time to take in some education on the Internet of Things. Read More...

Watching software defined networking take hold

SDN is being touted as a disruptive technology that will, once implemented, allow corporations to lower IT costs and be more responsive and flexible. Read More...

Perspective from MWC: Movea’s motion processing play

Movea’s team sat down with EDN to talk about its roadmap and how its sensor hub architecture fits within a number of market segments catching attention at the Mobile World Congress. Read More...

Sine/Cosine-to-Digital Conversion: Methods and Design Challenges

The choice of a sine/cosine-to-digital conversion method can have a large effect on performance. Speed of conversion, resolution, accuracy, and latency are to be considered, but accuracy of the interpolated position/angle output is not dependent on the SDC converter’s resolution. Read to see what it is dependent upon. Read More...

Implement a stepper motor driver for smart gauges—Part II

Here’s the why, what, when and how—and overcoming challenges—of implementing stepper motor to drive smart gauges. In part II, we’ll cover details on motor driving techniques, as well as various aspects to be considered in order to achieve smooth, noise-free responsiveness. Read More...

Keeping FIT: Optocouplers vs. capacitive-based digital isolators

Placate your customer and impress your quality and reliability gurus. Be a hero and show them that the choice is clear. Which solution has the endurance you need in an isolation solution? Read on. Read More...

Implement a stepper motor driver for smart gauges—Part I

Here’s the why, what, when and how—and overcoming challenges—of implementing stepper motor to drive smart gauges Read More...

Implement capacitive proximity sensing in automotive applications

In this article, we will look at how capacitive proximity sensing is implemented, its benefits, and how the different characteristics of capacitive proximity sensing make it appropriate for automotive applications. Read More...

Design a cost-effective magnetic card reader

Reading a magnetic card is a challenge as the amplitude of sensor signal varies with the speed at which card is swiped, the quality of the card, and the sensitivity of magnetic read head. Frequency also varies with the swipe speed requiring analog circuitry. This article explains mechanisms for handling variations in the sensor signal. Read More...

Optimize power for user interfaces through wake-on-approach using capacitive proximity sensing—Part 2

This segment covers the basics of proximity sensors and hardware implementation details of wake-on-approach proximity sensors. Read More...

>> SEE ALL

04.14.2014

Thermowell vibration monitor

Use TI's unique inductance-to-digital converter to sense potentially dangerous vibration in thermowell sensors.Read more...

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