Radatec, Inc.

Scott Billington

Jonathan Geisheimer

Thomas Holst

Phillip Moore

Controlling a multiplexer for switching between probes of a microwave sensor. The multiplexer is used to select one of the probes at any one time of operation of the sensor. Signal processing constants are updated for the selected probe. One or more signal conditioning devices are adjusted to optimize signal noise levels and dynamic range for the probe. The transmit frequency is set for the probe. Upon expiration of a transition period, a data acquisition operation or measurement operation is conducted with the probe. In turn, a time for switching to the next probe is calculated and applied prior to enabling the multiplexer to switch to another probe. These tasks are completed steps for each of the remaining probes of the microwave sensor and then repeated again for continuing operation of the sensor.

Method of sensor multiplexing for rotating machinery

A temperature measurement technique for calculating a temperature in a high temperature environment by monitoring a change in resonant frequency of a resonant structure loaded with a dielectric material. A response curve for a reflection coefficient S11 associated with the resonant structure is generated, typically by the use of a network analyzer connected to the resonant structure via a cable. A minimum point for the response curve is identified to detect the resonant frequency for the resonant structure. A calibration map is applied to the minimum point to identify a temperature associated with the resonant frequency of the resonant structure. The temperature associated with the resonant frequency of the resonant structure represents the temperature of the high temperature environment.

Growing community of inventors

Matran, Switzerland

Scott Billington