Gas analyzer and gas analyzing device

A gas analysis arrangement, including:

• a gas analyzer, including:
• a connection panel having a first media opening and a second media opening, wherein each of the first and second media openings extends from a first surface to a second surface of the connection panel;
• a sensor panel joined together with the connection panel on a first joint plane;
• and
• a cover panel joined together with the sensor panel on a second joint plane on a sensor panel face facing away from the connection panel, wherein the cover panel has a cover panel cavity which communicates with the first and second media openings,
• wherein the sensor panel has at least one oscillator cavity which communicates with the first and second media openings, wherein the sensor panel has a micromechanical oscillator which is arranged in the oscillator cavity and excitable to mechanically vibrate perpendicularly to the joint planes,
• wherein the gas analyzer further includes a first fluid channel extending from the first media opening to the oscillator cavity and formed between the connection panel and the sensor panel or a second fluid channel extending from the second media opening to the oscillator cavity and formed between the connection panel and the sensor panel,
• wherein the sensor panel has a first media opening aperture extending from the first media opening to the cover panel cavity or the sensor panel has a second media opening aperture extending from the second media opening to the cover panel cavity,
• wherein the first media opening aperture has a first area centroid on an upper side of the sensor panel facing the cover panel and the second media opening aperture has a second area centroid on the upper side of the sensor panel,
• wherein the first area centroid has an area centroid clearance from the second area centroid,
• wherein the oscillator cavity has a third area centroid on the upper side of the sensor panel, and
• wherein the third area centroid has a clearance from a connecting line between the first and the second area centroids that is at least half of a geometric mean arising from the area centroid clearance and a clearance of the cover panel from the upper side of the sensor panel, averaged along the connecting line;
• and
• a temperature sensor, or a pressure sensor, or a thermal conductivity sensor.

A gas analyzer for measuring the density or viscosity of a medium, including:

• a connection panel having a first media opening and a second media opening, wherein each of the first and second media openings extends from a first surface to a second surface of the connection panel;
• a sensor panel joined together with the connection panel on a first joint plane;
• and
• a cover panel joined together with the sensor panel on a second joint plane on a sensor panel face facing away from the connection panel, wherein the cover panel has a cover panel cavity which communicates with the first and second media openings;
• wherein the sensor panel has at least one oscillator cavity which communicates with the first and second media openings, wherein the sensor panel has a micromechanical oscillator which is arranged in the oscillator cavity and excitable to mechanically vibrate perpendicularly to the joint planes,
• wherein the gas analyzer further includes a first fluid channel extending from the first media opening to the oscillator cavity and formed between the connection panel and the sensor panel or a second fluid channel extending from the second media opening to the oscillator cavity and formed between the connection panel and the sensor panel,
• wherein the sensor panel has a first media opening aperture extending from the first media opening to the cover panel cavity or the sensor panel has a second media opening aperture extending from the second media opening to the cover panel cavity, and
• wherein the first and second media opening apertures, the oscillator cavity, and the cover panel cavity are positioned and matched to one another such that an average flow velocity of a gas in the oscillator cavity is not more than one-quarter of the average flow velocity in the first and second media opening apertures.