Erratum: “Experimental demonstration of the equivalence of inductive and strongly coupled magnetic resonance wireless power transfer” [Appl. Phys. Lett. 102, 053904 (2013)]

Ricketts, David S.; Chabalko, Matthew J.; Hillenius, Andrew

doi:10.1063/1.4796125

Cited by 1 publication

(1 citation statement)

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“…Over the past decade, coupled magnetic resonances have shown significant applications in creating a low loss path for transferring power to farther distances. [ 36–38 ] Despite the significant applications of this technique, using this approach for passive wireless sensor readout has been limited to range extension only. [ 24,25 ] In such a scheme, the passive resonator (as the sensor) would be inductively coupled to a chain of magnetically coupled resonators instead of coupled directly to the reader node (see Figure a).…”

Section: Introductionmentioning

confidence: 99%

Microelectronics‐Free, Augmented Telemetry from Body‐Worn Passive Wireless Sensors

Hajiaghajani

Tseng

2021

Adv Materials Technologies

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Wearable wireless passive sensors are powerful potential building blocks of modern body area networks. However, these sensors are often hampered by numerous issues including restrictive read‐out distances due to near‐field coupling, fundamental tradeoffs in size/spectral performance, and unreliable sensor tracking during activity. Here, to overcome such issues implementing wearable sensing systems exhibiting coupled magnetic resonances are demonstrated. This approach is utilized to augment wireless telemetry from fully wearable, passive (zero electronics) resonator chains. Secondary receiver coils are integrated into fabric or skin to facilitate augmented read‐out from epidermal sweat, moisture, or pressure sensors—herein exhibiting enhanced read‐out range, relaxed constraints in sensor size (sensor spectral response becomes untethered from size) and reader‐sensor orientation. Unlike existing schemes, this readout method enables decoupled co‐readout of the sensor's distance and status, employed here for co‐measurement with human respiration. This type of decoupled readout can help compensate for movements that are so common in wearable monitoring. Simple to implement and requiring no microelectronics, this scheme streamlines into existing, body‐worn passive wireless telemetric systems with minimal modification.

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Section: Introductionmentioning

confidence: 99%