Ust Umweltsensortechnik Gmbh

Other

Auto Electronics Corporation

Automotive Ag

Olaf Kiesewetter

Hanns Rump

Norbert Pieper

Jorg Hiller

Erhard Altstadt

Sven Kittelmann

Anatolij Ewert

Horst Hansch

Volkmar Melchert

Albert Reinholz

Eva Witz

Detecting air ingredients is obtained, a heater and gas sensitive acting layers are arranged on a substrate, which are connectable to an analyzing unit. Electrical resistances of n acting layers are connected in series; heater is a temperature sensor connected in parallel with this series connection, electrical resistance of heater is smaller than the sum of electrical resistances of acting layers and resistances are connected with a total of n+1 electrical terminals via electrodes so that heater is connected with two terminals and n&#x2212;1 other terminals are connected with a respective junction that interconnects two acting layers. Heater is intermittently heated so that a predefined constant temperature of acting layers is achieved, temperature of acting layers is acquired by determining electrical resistance of heater; voltages in the series connection of acting layers are analyzed and a concentration of gases are determined from electrical resistances of acting layers.

Arrangement and method for detecting air ingredients

A device for the preparation of a plasma for producing ozone and/or oxygen ions in the air following the principle of dielectrically impeded discharge is disclosed. The device comprises: a) a flat, electrically insulating support (), the material thereof having a dielectric constant &#x3b5;which is at least higher than 30 (that is, &#x3b5;&#x3e;thirty); b) an electrode () is placed on one of the main surfaces of the support (), c) at least one electrically insulating layer () made of a dielectric material is placed on the other side of the support (); d) the dielectric constant of the support () and that of the insulating layer () are different, e) an electrode () made of an electrically conductive material is mounted an the insulating layer (), said electrode covering only partially the insulating layer () and a high voltage of an AC generator is applied to both electrodes ().

Device for preparing a plasma for the production of ozone and/or oxygen ions in the air

A method and device for detecting condensation on surfaces of structural components. A evaluation signal is generated before dewing while the structural component is cooling. A detectable film is produced on a measuring arrangement a few degrees Kelvin before the dew point is reached. The temperature is measured directly on the layer where the dew is developing.

Method and arrangement for monitoring surfaces for the presence of dew

The invention relates to a device for producing active oxygen ions in the air for improved air quality, comprising at least one air ionizer and an electric transformer producing sufficient electrical high voltage for air ionization. The air ionizer is coupled to a sensor which detects the oxidizable gas content in the air (air pollution sensor). On the basis of the detected content of such oxidizable gases, the electrical energy which is guided to the air ionizer is transformed by an electrical control device in such a way that only low-level ionization occurs at low concentration of oxidizable gases. Said ionization is sensor-controlled and can automatically be increased to a maximum value when the concentration of oxidizable gases rises.

Device and process to produce active oxygen ions in the air for improved air quality

Sensor system for controlling ventilation systems in vehicles

Growing community of inventors

Geschwenda, Germany

Olaf Kiesewetter