Abstract: A galvanic solid electrolyte sensor for measuring gaseous anhydrides includes a ceramic solid electrolyte that has a material that conducts electrons, a measuring electrode that includes a pure or doped alkaline or alkaline earth salt and a reference electrode spatially separated from the measuring electrode and sealed off from the anhydride measuring gas by a gas-tight enclosure. The reference electrode is made of a metal material that conducts electrons. The gas-tight enclosure is made of a layer of a glass containing zirconium and lead that covers only the material of the reference electrode, with only a marginal area of this layer abutting the solid electrolyte.

Abstract: A method of producing an ion sensitive working electrode for a heavy metal ion sensor, the ion sensitive working electrode including a mixture of Ag.sub.2 S and MeS in which Me represents a heavy metal to be determined in a solution to be measured, the method including applying a conductive layer onto a substrate using at least one thick-film technique selected from the group consisting essentially of screen printing and film casting; applying a layer comprised of a plurality of juxtaposed sections on top of the conductive layer, each section of the plurality of juxtaposed sections being comprised of a mixture of Ag.sub.

Abstract: A solid state electrode for the determination of sodium ion concentrations in solutions, with a solid state electrolyte having a high conductivity for sodium ions being provided as the sodium sensitive membrane. The solid state electrode and a reference electrode forms a sensor.The advantages of the sensor of invention are, in particular, high selectivity combined with economical production in thick-film technology. The sensor may be constructed in cylindridcal form.

Abstract: A sensor for monitoring hydrogen concentrations in gases, containing a solid electrolyte body, a detector electrode having a surface which is exposable to a gas to be monitored, and a reference electrode, in which the reference and detector electrodes make contact with the solid electrolyte, and the detector electrode contains a platinum metal or a platinum metal oxide. A method of making the sensor is also disclosed.

Abstract: A sensor for monitoring hydrogen concentrations in gases, containing a solid electrolyte body, a detector electrode having a surface which is exposable to a gas to be monitored, and a reference electrode, in which the reference and detector electrodes make contact with the solid electrolyte, and the detector electrode contains a platinum metal or a platinum metal oxide.

Abstract: Apparatus for atomizing liquids which includes an ultrasonic excitation system, a bending resonator which oscillates at ultrasonic frequencies, and a device for the delivery of liquid into the velocity nodal region of the bending resonator. The bending resonator has at least one surface which is inclined with respect to the axis of the excitation system. The bending resonator can be in the form of an elongated narrow strip having a plurality of parallel nodal lines. The length of the excitation system is approximately (2n+1) .lambda./4, wherein n is 0 or an integer.