Passive RFID Wireless Spinning and Rotating Sensors – Battery-Free

Phase IV Featured in RFID Journal Article –

Read the RFID Journal feature article that describes how Phase IV’s unique battery-free RFID wireless strain sensor is embedded in the concrete tunnel liners and very accurately reports changes in tunnel structure loading.  The strain sensors are read with a standard ThingMagic Vega UHF RFID reader.  Click the link below to read the feature article on this strain sensor in the RFID Journal.

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Also see the PowerPoint presentation on this North Gate Tunnel Strain Sensor project with a full array of photos.

Spinning and Rotating Article

Finalist for the Best New RFID Product of 2015

Finalist for Product of the Year 2015 at Sensors Expo

Winner of the Coolest Demonstration  at the April 2015 RFID Journal Live trade show.  

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Passive RFID Wireless Strain Gauge Demo Video

Skip ahead to these video segments:

  • 0:00 Introduction
  • 0:40 Strain Sensors in Structural Health Monitoring (SHM)
  • 1:30 Example Project – North Gate Tunnel
  • 2:00 Breakthroughs in Wireless Battery-Free Strain Sensing
  • 2:36 Example Application – Instrumented Concrete Rebar
  • 4:15 RFID Data Logging
  • 5:40 Embedded “Read Now” Strain Sensing
  • 7:00 Rapid Installation
  • 7:30 RFID Strain Sensor Precision
  • 8:40 RFID Reader Backpack for Field Use
  • 9:50 DEMONSTRATION
  • 12:30 Temperature Compensatin

About our New Passive RFID Wireless Strain Gauge

Now, monitor stress, strain, shear, or load using a standard RFID reader. A wireless strain gauge system using Phase IV’s strain sensors (patent pending) can be inexpensively installed in extreme environments that were previously too difficult to monitor.

  • RFID strain gauge sensors need no wires or batteries = no maintenance and long life.
  • Can be read through materials that typically cover structural components, with read range up to several meters on a metal-mount sensor.
  • Strain resolution better than 2 u-strain using a standard strain sensor.
  • Sensors can be installed & calibrated on-site.
  • Use on-board temperature sensor for strain gauge temperature compensation, if needed.
  • Data-logging capability – track and compare for predictive maintenance.
  • Each wireless strain gauge sensor has a unique ID# so that many sensors can be read by one reader at the same time.
    • Quickly & easily monitor with an off-the-shelf UHF RFID reader.
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Questions about Phase IV Engineering's RFID & wireless sensor technology? Need a quote for a specialized wireless sensor solution? Talk to one of our wireless sensing experts today.
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Custom Options for RFID Wireless Strain Gauges

  • Active (battery-powered) strain gauges (strain gages) transmit hundreds of feet. Ultra-long-life batteries make them Practically Battery Free.
  • Can be read through materials that typically cover structural components, with read range up to several meters on a metal-mount sensor.
  • Battery-Assisted strain data loggers store strain readings over time. Communication with the sensor is done with an RFID reader.
    • Energy harvesting strain sensors using solar cells provide long-range sensor transmissions with no battery to maintain.
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Go with the experts and leverage our 23 years of expertise living on the leading edge of wireless sensor technology.

We understand that most sensing solutions require custom sensor features. If you don’t see exactly what you are looking for, then contact us about adapting one of our many existing designs to your specific needs. Our staff of senior engineers will review your requirements and recommend adapting an existing design to minimize the customization expense.

While we excel at doing patent-able design work, we also know how to keep things simple & effective. We can execute your vision while respecting your budget and other constraints.

In high-risk solutions, Phase IV Engineering can quickly prototype new sensor solutions for proof-of-concept testing. This allows us to identify problems early and reduce overall development costs, time, and risk. In the rare case where the requirements cannot be met – we find that out in the first project phase by tackling the most challenging requirements first.

We have expertise in all types of wireless sensors. Our competitors only offer 1 or 2 options; you may have to compromise to make their offerings work for you. We can help you find the right solution for YOUR situation.

Our engineering team covers all the engineering disciplines including electrical, radio (RF), mechanical, software, firmware, and manufacturing engineers.  We can design and build all or part of the final system.

We pioneered RFID sensor solutions. We have the technology expertise to deliver the most effective solution to our customer’s problems, whether passive or active, and all across the frequency range. If you need a wireless sensor solution, Phase IV can bring that solution to market by leveraging our radio design and low-power circuit design expertise.

Our customer satisfaction record speaks for itself. Many Fortune 500 companies trust us to do their complex wireless sensor R&D and innovation – you can, too.

 

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