A piezoelectric resonator, a method for the production of the resonator, as well as its use as a sensor element for detecting the concentration of a contained in a fluid substance and / or the determination of physical properties of the fluid

摘要

a piezoelectric resonator is described, a method for the production of and its use as a sensor element in the implemented in a durchfluu00dfzelle in a measuring system to detect the concentration of a substance contained in a fluid and / or the provision of physics alischer properties of fluids can be integrated.the piezoelectric resonator is all trained and shows its surface electrical contact for the electrode and gegenelektrode, with a signal source and a measuring device doors.for the measurement of the piezoelectric resonator is biased with the test fluid brought into contact with the resonator on a massenanlagerung to be substance or to a change in the physical properties of the fluid by changing the resonance frequency and / or r the schwingungsamplitude addresses.$a, the invention is characterized by the fact that the piezoelectric resonator kontaktelektrodenbereiche provided in one side of the in kontaktierbar. the resonator is used as the core of a sensorelementes, in a durchfluu00dfzelle is integrated.the durchfluu00dfzelle is modulartig in a method to capture the concentration of a substance contained in a fluid and / or the determination of physical properties of the fluid can be used.