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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.

Tattoo bio-batteries produce power from sweat

Researchers University of California San Diego have designed a sensor in the form of a temporary tattoo that can both monitor a person's progress during exercise and the tattoo biobatteries can also produce power from the perspiration. Read More...

ULP wireless: over-the-air software upgrades

Revising an ultra low power (ULP) wireless chip’s software in the field has been difficult. But new technology will make it routine - to developers’ and consumers’ benefit alike Read More...

Use Time Domain Reflectometry (TDR) for low-cost liquid level measurement —Part III

Article three of the series discusses a cost effective and implemented application of TDR to liquid level-sensing including schematics and board layout. Read More...

Use Time Domain Reflectometry (TDR) for low-cost liquid level measurement—Part II

In the previous article, the basics of Time Domain Reflectometry (TDR) were discussed. In this segment, we will discuss the application of TDR to liquid level sensing. Read More...

Bluetooth v4.1: What developers need to know

Here’s how the newest chips can take advantage of the latest version of Bluetooth technology’s new functionality Read More...

Capacitive sensing in battery-powered devices--Design considerations

This article focuses on the effective use of the capacitive sensor electrode reference (battery ground) and presents another variable reference introduced by the user (earth). Read More...

Wzzard sensing platform accelerates IoT development

While IoT advances are consistently in the news, it is this level of innovation that will continue to accelerate IoT adoption. Read More...

Use Time Domain Reflectometry (TDR) for low-cost liquid level measurement—Part I

This three article series introduces the use of Time Domain Reflectometry (TDR) to liquid level-sensing: Article one covers theory, article two discusses the application of TDR to liquid level-sensing and three delivers a cost effective and implemented application of TDR to liquid level-sensing including schematics and board layout Read More...

PCI cards simulate RTDs and strain gages

Pickering Interfaces has introduced a strain-gage simulator card and an RTD simulator card that runs on PCs through the PCI bus. Read More...

Fairchild acquisition of Xsens

I was not too impressed with all the talk I’ve heard but not much action---until now—Learning of the Xsens acquisition significantly reinforces my faith in Fairchild’s MEMS and sensor offerings and is in tune with what they have been promising. Read More...

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Inductively sense workpieces of any material

Create an inductive switch using the LDC1000 to replace mechanical switches in dirty environments. Read More...

Ferromagnetic soldering iron control

Utilize a basic materials property to sense and control soldering iron temperature. Read More...

Construction metal imager

Build up an image of inductively sensed, hidden metal using the software equivalent of a long time exposure! Read More...

Elastomer-assisted inductive sensing

Embedding inductive coils under an off-the-shelf mattress pad creates a multi-point position and pressure sensing system for sleep-posture analysis. Robotic applications also beckon. Read More...

Seismometer and structural vibration meter

Use a TI LDC1000 as a sub-micron displacement sensor for vibration measurement and logging in seismic and structural mechanics applications. Read More...

Beehive scale uses inductive sensing

A spring scale for measuring honey production senses weight inductively. Read More...

LTC Design Note: Measure RH with instrumentation-grade system monitor

An accurate, modern system monitor chip senses humidity the old-fashioned way. Read More...

Inductively sense aircraft engine valve position

Aircraft engine designers are conservative by nature, but here's a way to improve performance anyway. Read More...

Music keyboard inductively senses position & velocity

Technologies to measure key position, pressure, and velocity go back almost a century. Now, an inductive sensing IC offers another solution. Read More...

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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Startup launches miniature gas sensor for mobiles

Cambridge CMOS Sensors Ltd (Cambridge, England) has announced the CCS800 family of miniature gas sensors for use detecting alcohol (ethanol), hazardous gases such as carbon monoxide and volatile organic compounds. Read More...

LED-fitted passive RF-field detector tag offers visual feedback

Equipped with a bright LED, whenever Farsens' Photon RFID tag comes close to an RF field source, it harvests energy from the RF field and drives its LED according to the field’s strength. Read More...

Color sensor tunes LED light color through smartphone interface

Through the use of its True Color sensor, MAZeT GmbH has demonstrated the accurate colour control of LEDs using a smartphone or tablet as a remote control. Read More...

PCI cards simulate RTDs and strain gages

Pickering Interfaces has introduced a strain-gage simulator card and an RTD simulator card that runs on PCs through the PCI bus. Read More...

MEMS altitude pressure sensor detects 50-cm changes

A highly-accurate absolute pressure sensor from Omron Electronic Components Europe can detect height differences of as little as 50cm. Read More...

Smartphone Quick-Jack solution adapts 3.5mm audio jack into self-powered data port, universal interface

NXP Semiconductors has introduced a Smartphone Quick-Jack Solution that simplifies connecting a variety of external devices to smartphones for self-powered data communications. Read More...

Nanopower magnetoresistive sensor ICs cut costs

Honeywell has introduced a nanopower anisotropic magnetoresistive sensor IC providing position detection based on magnetic field sensing, using a very small and low-cost package with on-chip integration of level detection and switching. Read More...

Ambient light, color and proximity sensing in one chip

The ams TMD3782 digital sensor is optimized for use in mobile devices, the 3.9x2.4x1.4mm module combines ambient light, color and proximity sensing. 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...

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Use Time Domain Reflectometry (TDR) for low-cost liquid level measurement —Part III

Article three of the series discusses a cost effective and implemented application of TDR to liquid level-sensing including schematics and board layout. Read More...

Use Time Domain Reflectometry (TDR) for low-cost liquid level measurement—Part II

In the previous article, the basics of Time Domain Reflectometry (TDR) were discussed. In this segment, we will discuss the application of TDR to liquid level sensing. Read More...

Capacitive sensing in battery-powered devices--Design considerations

This article focuses on the effective use of the capacitive sensor electrode reference (battery ground) and presents another variable reference introduced by the user (earth). Read More...

Use Time Domain Reflectometry (TDR) for low-cost liquid level measurement—Part I

This three article series introduces the use of Time Domain Reflectometry (TDR) to liquid level-sensing: Article one covers theory, article two discusses the application of TDR to liquid level-sensing and three delivers a cost effective and implemented application of TDR to liquid level-sensing including schematics and board layout Read More...

Lower power and cost for Android device motion sensing using mCube’s iGyro

While the gyro enhances user experience, the cost, power consumption and board space required limits applicability to only the most expensive mobile devices. Not any more. Read More...

BAW gyroscope sensors transform inertial MEMS apps

BAW technology is being used to develop a new class of solid-state MEMS gyroscopes that not only meet power, size, cost, and high volume production requirements exceedingly well, but also add higher performance to the mix. Read More...

Implement haptics in touch-based user interfaces

Transitioning from mechanical buttons, knobs, and dials to a capacitive touch interface poses a challenge to designers because there is no tactile feedback present with capacitive touch sensors as exists with mechanical buttons and switches. Here’s a solution. Read More...

Implement a stepper motor driver for smart gauges—Part III

In this final part of the article, we’ll cover implementing motor control in a SoC with attention to key points to keep in mind. Read More...

Crystal Oscillator Fundamentals and Operation—Part IV

In this segment, we continue our discussion on the remaining specifications such as startup time, crystal overtone and spurious modes. Read More...

Crystal Oscillator Fundamentals and Operation—Part III

In Part III the discussion moves to a look at the various parameters associated with crystal oscillators and their impact on the end system design. Read More...

Semiconductor Reliability and Quality Assurance--Failure Mode, Mechanism and Analysis (FMMEA)

This article introduces how to implement FMMEA in detail, including system definition, identification of potential failure modes, analysis of failure cause, failure mechanism, and failure effect analysis. 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...

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Tattoo bio-batteries produce power from sweat

Researchers University of California San Diego have designed a sensor in the form of a temporary tattoo that can both monitor a person's progress during exercise and the tattoo biobatteries can also produce power from the perspiration. Read More...

Wzzard sensing platform accelerates IoT development

While IoT advances are consistently in the news, it is this level of innovation that will continue to accelerate IoT adoption. Read More...

Fairchild acquisition of Xsens

I was not too impressed with all the talk I’ve heard but not much action---until now—Learning of the Xsens acquisition significantly reinforces my faith in Fairchild’s MEMS and sensor offerings and is in tune with what they have been promising. Read More...

Act fast to harness and optimize MEMS performance in portables

Starting to use MEMS technology in portable applications including wearables, healthcare, gaming or automotive? If so, tune in on Thursday, June 26 at 2:00 pm ET to catch Optimizing MEMS Performance in Portable Applications. Read More...

Mini sensor enables accurate fluid-temperature sensing

Offered in a stainless-steel housing for permanent contact with fluids, the NTCAIMME3 miniature immersion sensor from Vishay BCcomponents provides a fast response time of 1.5 s, a low thermal gradient of less than 0.02 K/K, and a high base-temperature accuracy of ±1.5°C. Read More...

Startup launches miniature gas sensor for mobiles

Cambridge CMOS Sensors Ltd (Cambridge, England) has announced the CCS800 family of miniature gas sensors for use detecting alcohol (ethanol), hazardous gases such as carbon monoxide and volatile organic compounds. Read More...

LED-fitted passive RF-field detector tag offers visual feedback

Equipped with a bright LED, whenever Farsens' Photon RFID tag comes close to an RF field source, it harvests energy from the RF field and drives its LED according to the field’s strength. Read More...

Color sensor tunes LED light color through smartphone interface

Through the use of its True Color sensor, MAZeT GmbH has demonstrated the accurate colour control of LEDs using a smartphone or tablet as a remote control. Read More...

1st electric traffic light system installed, August 5, 1914

On this day in tech history, the first electric traffic light system, which used red and green lights with a buzzer and was connected to emergency services, was installed in Cleveland, OH. Read More...

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