Patent ID: 8912852

Claim:
A transducer assembly, comprising: first, second, third, and fourth crystal controlled oscillators; first, second, third, and fourth thickness shear mode crystal quartz resonators, wherein the first, second, third, and fourth oscillators are respectively controlled by the first, second, third, and fourth crystal quartz resonators; wherein the first crystal quartz resonator and the second crystal quartz resonator respectively comprise a pressure resonator and a reference resonator that are configured together as a pressure sensor providing a frequency output; wherein the third crystal quartz resonator comprises a first temperature resonator that is configured as a temperature sensor providing a frequency output; wherein the fourth crystal quartz resonator comprises a second temperature sensor resonator and is part of the same holder as the reference resonator and the temperature resonator or is part of a different holder; and wherein a frequency output of the fourth oscillator is mixed with a frequency output of the third oscillator to derive a dynamic thermal output.