Unit type strain gauge
 A unit type strain gauge having a protective outer casing of a hard material provided with an internal space open at one side and a pressing member housed in the internal space arranged to press a strain gauge element attached to it against an object, in which strain is to be measured, the remainder of said space being filled with soft synthetic rubber arranged to maintain the parts of the gauge in position and to maintain a dust proof and moisture proof structure. 
Kyowa Electronic Instruments Co., Ltd.
G G
G01L G01L
inventional inventional
Osamu
Watanabe