The invention relates to a
fiber grating sensor
package structure suitable for a high-temperature environment. The
fiber grating sensor
package structure comprises an upper layer
package and a lower layer package; the lower layer package is provided with an
optical fiber placement portion; two
optical fiber fixing through holes which are spaced apart are formed in the lower layer package; the
optical fiber placement portion is divided into a first placement portion, a second placement portion, and a third placement portion through the optical
fiber fixing through holes; the first placement portion is located between the two optical fiber fixing through holes; the groove depth of the first placement portion is greater than the groove depths of the second placement portion and the third placement portion; the upper layer package includes two
adhesive injection portions; the two
adhesive injection portions are respectively corresponding to the two optical fiber fixing through holes; and
adhesive injection holes are formed in the tops of the adhesive injection portions. The invention also provides a fiber
grating sensor packaging method suitable for a high-temperature environment. Whenthe package structure of the invention is installed, a fiber grating sensor is directly bonded to a device to be tested, and therefore, measurement error caused by the problem of strain transmissioncan be avoided; and a two-point type bonding method is adopted, and therefore, the influence of an adhesive on the performance of the fiber grating sensor can be avoided.