| 摘要 |
<p>A unit type strain gauge has a protective outer casing made of a hard material having an internal space open at one side and a lead cable inlet at one end of the casing, and a packing having a surface to fit the open side of the casing and another surface to fit an outer surface of an object in which strains are to be measured. A pressing member made of an elastic material such as a synthetic rubber is arranged in the internal space of the casing in such a manner that one surface thereof slightly projects from outer face of the packing, and d strain gauge element is mounted on the surface of the pressing member. A terminal member has ribbon wires for providing electric connection to the strain gauge element and terminals for providing electric connection for wires of a lead cable. The internal space of the casing has a shape suitable for accommodating the pressing member, the terminal member and a portion of the lead cable, the remainder of the space being substantially filled by a filling material such as soft synthetic rubber to an extent to keep the above elements in position and to provide dust proof and water proof construction.</p> |
