METHOD AND DEVICE FOR DETERMINING HYDROGEN IN METALS Russian patent published in 2006 - IPC G01N27/12 

FIELD: investigating or analyzing materials.

SUBSTANCE: method comprises extracting hydrogen in gas phase by means of affecting the specimen to be analyzed or reference specimen with known hydrogen concentration by the pulse laser, and recording hydrogen extracted by means of a chemical sensor. The device comprises pulse laser, system for focusing the beam on the specimen to be analyzed that are mounted for permitting movement with respect to the working chamber provided with the optical window mounted on the surface of the specimen or the reference specimen and inner space open toward the surface connected with the measurement chamber through the gas passage. The measurement chamber receives the chemical sensor and unit for recording the electric signal of the sensor. The device is additionally provided with the light-splitting mirror that directs a portion of the laser radiation to the detector for measuring radiation intensity that is connected with the recording unit through a cable. The sensor is made of a metal-dielectric-conductor structure. The gas-sensitive member of the sensor is mounted in the passage at the inlet to the measurement chamber.

EFFECT: expanded functional capabilities.

2 cl, 3 dwg