METHOD OF AUTONOMOUS MEASUREMENT OF HUMIDITY OF AIR SPACE Russian patent published in 2005 - IPC

FIELD: measurement engineering.

SUBSTANCE: device can be used for monitoring of humidity of environment in meteorology, climatology and ecology. Two sensitive members, both made of shape memory effect alloy, are placed in air space. Difference in deformation between first and second elements is converted at difference in humidity to movement of writing element along diagram tape fixed to drum of clockwork. Sensitive elements are functionally connected to each other according to differential circuit. Clockwork is supplemented with sensitive element made of shape memory effect alloy and second drum which is combined together with the first one by first diagram tape.

EFFECT: improved precision.

1 dwg