Abstract:
A magnetic communication system for a gas turbine engine may include a sensor coupled to a microcontroller. A low frequency radio-frequency identification integrated chip may be coupled to the microcontroller. A first coupling circuit may be coupled to the low frequency radio-frequency identification integrated chip and may include a first coil winding wound within a first core. The first coil winding operatively associated with a low frequency magnetic flux.
Abstract:
A sensing system may comprise a reader device including a primary magnetic coil, and a sensing device including a secondary magnetic coil and a sensing platform configured to acquire sensing data. The sensing system may further include a first part having the sensing device embedded therein. The reader device and the sensing device may be configured to communicate over a non-contact wireless interface using low frequency wireless power transfer.
Abstract:
An embedded sensor apparatus for enabling wireless signal transmission while protecting an embedded sensor is disclosed. In various embodiments, an embedded sensor apparatus may comprise a substrate with a cavity, a wireless sensor embedded in the cavity of the substrate, a protective cover coupled to the wireless sensor, and a ferrite layer covering the protective cover. Further, the embedded sensor apparatus may comprise an electromagnetic reflector coupled between the wireless sensor and the substrate. In addition, the ferrite layer may be a ferrite plug, a deposited ferrite layer, or a combination thereof. Furthermore, in various embodiments, covering the protective cover with the ferrite layer may comprise depositing the ferrite layer on the protective cover using a cold spray process. In another embodiment, covering the protective cover with the ferrite layer may comprise depositing the ferrite layer on the protective cover using a thermal spray process.
Abstract:
A sensor system includes a load-carrying element, an encoder structure, and a magnetic flux transducer. The load-carrying element is formed of substantially non-magnetic material, while the encoder structure is formed of magnetic material deposited via cold spray additive manufacturing within the load-carrying element. The magnetic flux transducer is disposed adjacent the load-carrying element to sense changes in magnetic flux caused by relative motion of the encoder structure.
Abstract:
A magnetic communication system for a gas turbine engine may include a sensor coupled to a microcontroller. A low frequency radio-frequency identification integrated chip may be coupled to the microcontroller. A first coupling circuit may be coupled to the low frequency radio-frequency identification integrated chip and may include a first coil winding wound within a first core. The first coil winding operatively associated with a low frequency magnetic flux.
Abstract:
The present disclosure relates generally to a sensor including inductively coupled coils. Alignment of the coils may be maintained by constraining relative movement of the structures into which each of the coils is embedded. Alignment of the coils may be established by maintaining the transponder coil stationary while moving the reader coil with respect to the transponder coil and monitoring the current at the source supplying the reader coil. When the current at the source is at an extreme value (substantially maximized or minimized), the reader coil and the transponder coil are aligned. Additionally disclosed is an iterative process for designing coil geometries and resonant circuits for a sensor employing inductively coupled coils.