No-Power Oscillating Sensor
A wireless, fully passive RF sensing unit that converts an analog voltage amplitude into a frequency-modulated RF signal, for unattended measurement in harsh or contested environments. This is an RF/RFID device, not a fiber optic sensor.
Technical overview
The device uses an RFID sensor as a frequency-modulated transmitter of analog voltage amplitude, with tuned polymer derived ceramics (PDC) serving as the capacitive dielectric and the transduction mechanism. A voltage controlled oscillator allows different analog front ends such as thermocouples, voltage or pressure sensors to feed the same transmitter. It is self-powered and requires no battery or wiring. CEL publishes no frequency, read range, accuracy or operating temperature figures for this device. It is covered by US Patent 11,522,267 B2 and was developed with US Department of Energy support under Contract DE-AC07-05-ID14517.
Features
- Immune to electromagnetic interference
- No spark hazard, sensor requires no electrical power
- Easily placed or installed
- All-weather, persistent, unattended sensing
- Configurable to all environments
- Senses motion, vibration, temperature and strain
- Extremely small and light weight (low SWaP)
- Inherently self-powered with an extremely long working life
Specifications
| Parameter | Value |
|---|---|
| Patent | US 11,522,267 B2 - Sensing units including a radio-frequency sensor, and related systems, devices, and methods |
| Government contract | DE-AC07-05-ID14517 awarded by the United States Department of Energy |
| Dielectric / transduction material | tuned polymer derived ceramics (PDC) |
Applications
- Border and perimeter security sensing
- Flight control system sensing
- In-core extreme high heat sensing
- Tagging, tracking, and locating
- Smart cities public services monitoring
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