1
Dietrich W Lubbers, Norbert Opitz: Method and arrangement for measuring the concentration of gases. Max Planck Gesellschaft zur Forderung der Wissenschaften e V, Michael J Striker, January 18, 1977: US04003707 (119 worldwide citation)

A method and an arrangement for measuring the concentration of gases in a mple includes the generation of a monochromatic light beam having predetermined color characteristic. An indicator generates light signals indicative of the concentration of the gases in a sample to be measured and includes a ...


2
Dietrich W Lubbers, Norbert Opitz: Method and arrangement for measuring the concentration of gases. Max Planck Gesellschaft zur Forderung der Wissenschaften e V, Gordon L Peterson, May 7, 1985: USRE031879

A method and an arrangement for measuring the concentration of gases in a sample includes the generation of a monochromatic light beam having predetermined color characteristic. An indicator generates light signals indicative of the concentration of the gases in a sample to be measured and includes ...