X-ACT

Piezoelectrical resonators, oscillators based on piezoelectrical resonators, sensors based on piezoelectrical resonators, and measurement systems based on sensors of piezoelectrical resonators, said systems comprised of a resonator element, namely, a piezoelectrical [ resonators ] * resonator * or an oscillator based on a piezoelectrical [ resonators ] * resonator * or a sensor based on a piezoelectrical [ resonators ] * resonator * and, in addition to the resonator element, a hermetically sealed housing for the resonator element, which housing is sometimes furnished with electric circuitry, a heating means, and a flange for holding the resonator element to the housing