Abstract: A method and apparatus for generating high concentrations of ozone using a solid state high voltage power supply and a specially designed ozonator. The power supply comprises a rectifier and voltage doubler to which commercial AC line current is applied to produce a 300 volt DC output which, in turn, is applied across a solid state switching device to chop the DC output at an adjustable high frequency rate. The switch means is controlled by a timing and trigger circuit and the output of the switch means is applied to the input of an auto-transformer of the automotive ignition coil type which raises the high frequency output of the switch to a very high voltage level in the range of 30,000 to 50,000 volts peak to peak. This is applied to the high voltage electrode of each cell of a concentric electrode type ozone generator.

Abstract: A monitor continuously senses light emitted by the chemiluminescent reaction of such substances as ozone and nitric oxide in order to measure an unknown quantity or concentration of one of the substances which may, for example, be an air pollutant. The monitor comprises a specially designed reaction chamber intended to utilize a high concentration reactant gas in such a fashion as to permit the measurement of light output of the chemiluminescent reaction with the sample gas by a solid state detector and associated electronics which eliminate the need for the use of a photomultiplier tube. The reactor body has an end closure means to form an annular plenum chamber surrounding a light transmitting means mounted by the closure means in one end of the reaction chamber.