Wireless telemetry electronic circuit package for high temperature environments

US8220990B2 · kind B2 · utility

Assignees

• SIEMENS ENERGY, INC. · US
• Arkansas Power Electronics International, Inc. · US

Inventors

• David J. Mitchell · Oviedo, US
• Anand A. Kulkarni · Oviedo, US
• Ramesh Subramanian · Oviedo, US
• Edward R. Roesch · Orlando, US
• Rod Waits · Sunnyvale, US
• Roberto M. Schupbach · Fayetteville, US
• John R. Fraley · Fayetteville, US
• Alexander Lostetter · Fayetteville, US
• Brice McPherson · Fayetteville, US
• Bryon Western · West Fork, US

Key dates

• Filing date: Aug 15, 2008
• Grant date: Jul 17, 2012
• Expiry date: May 18, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04Q2209/80
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A circuit assembly (34) affixed to a moving part (20) of a turbine for receiving information about a condition of the part and transmitting this information external to the engine. The circuit assembly includes a high-temperature resistant package (34A) that attaches to the part. A high temperature resistant PC board (42) supports both active and passive components of the circuit, wherein a first group of the passive components are fabricated with zero temperature coefficient of resistance and a second group of the passive components are fabricated with a positive temperature coefficient of resistance. The active components are fabricated with high temperature metallization. Connectors (40) attached to the PC board pass through a wall of the package (34A) for communication with sensors (30) on the part and with an antenna (26) for transmitting data about the condition of the part to outside the turbine.