Temperature and pressure sensors and methods
AssigneesThe Florida State University Research Foundation, Inc., Government of the United States as Represented by the Secretary of the Air Force
InventorsChengying Xu, Amanda Schrand
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Abstract
Temperature sensors, pressure sensors, methods of making the same, and methods of detecting pressures and temperatures using the same are provided. In an embodiment, the temperature sensor includes a ceramic coil inductor having a first end plate and a second end plate, wherein the ceramic coil inductor is formed of a ceramic composite that comprises carbon nanotubes or, carbon nanofibers, or a combination of carbon nanotubes and carbon nanofibers thereof dispersed in a ceramic matrix; and a thin film polymer-derived ceramic (PDC) nanocomposite disposed between the first and the second end plates, wherein the thin film PDC nanocomposite has a dielectric constant that increases monotonically with temperature.
Claims26
A temperature sensor comprising:
- a ceramic coil inductor having a first end plate and a second end plate, wherein the ceramic coil inductor is formed of a ceramic composite that comprises carbon nanotubes, carbon nanofibers, or a combination thereof dispersed in a ceramic matrix;
- and
- a thin film polymer-derived ceramic (PDC) nanocomposite disposed between the first and the second end plates, wherein the thin film PDC nanocomposite has a dielectric constant that increases monotonically with temperature.
A pressure sensor comprising:
- a ceramic coil inductor having a first end plate and a second end plate, wherein the ceramic coil inductor is formed of a ceramic composite that comprises carbon nanotubes, carbon nanofibers, or a combination thereof dispersed in a ceramic matrix;
- and
- a polymer-derived ceramic (PDC) nanocomposite structure disposed between the first and the second end plates, wherein the PDC nanocomposite structure has walls that define an internal cavity having a first cavity surface and an opposed second cavity surface,
- wherein the first and second cavity surfaces are spaced a distance from one another.
A method for making a wireless temperature or pressure sensor, the method comprising:
- forming a ceramic coil inductor having a first end plate and a second end plate, wherein the ceramic coil inductor comprises carbon nanotubes, carbon nanofibers, or a combination thereof dispersed in a ceramic matrix;
- and
- providing a polymer-derived ceramic (PDC) nanocomposite between the first end plate and the second end plate.
Dependencies are inferred from the claim text.