STRAIN-SENSITIVE SILICONE SENSOR AND METHOD OF ITS ATTACHMENT Russian patent published in 2023 - IPC G01L1/22 

FIELD: sensor technology.

SUBSTANCE: strain-sensitive silicone sensor and the method of its attachment belong to the field of sensor technology and can be used when diagnosing the condition of space technology products, for example, to determine the opening angle of the reflector and frame of the spacecraft. The strain-sensitive sensor is made of polydimethylsiloxane, modified with carbon-containing material in the form of single-walled or multi-walled carbon nanotubes, with the following component content, wt.%: polydimethylsiloxane 89.81-89.96; hardener 9.98-9.99; carbon nanotubes 0.06-0.2. The method of attaching a strain-sensitive sensor is that two lower electrodes, which serve for further connection to the measuring system, are first strengthened on the product using an adhesive connection, then limiters are installed that set the overall dimensions of the sensor and the space between the limiters is filled with polydimethylsiloxane, a modified carbon-containing material in the form of single-walled or multi-walled carbon nanotubes, followed by exposure for 24 hours at room temperature, and after removing the limiters, two upper electrodes are installed on the polymerized surface using an adhesive connection.

EFFECT: tight fit of the strain sensor to the surface of the controlled product, which will increase the accuracy of measurements and the reliability of diagnostic results of the structure.

4 cl, 2 dwg, 1 tbl