Abstract
A TENSIONED-QUARTZ strainmeter 1 m in length has successfully recorded solid tidal strain variations in the Cooney Observatory. The designed is based on the 10-m quartz catenary strainmeter already in use at Cooney1 Vitreosil quartz rods (2-mm diameter) linked with 4-mm diameter Vitreosil hooks comprise the standard. This is tensioned by a brass beam-balance mounted to the hornfels by two 3/8; inch expanding bolts. A single 3/8 inch expanding bolt supports the other end of the quartz standard. Mounted within the fixed body of the beam balance is the coil housing of a Tesa GT10 inductive displacement transducer. The sensor armature is connected to the balance arm, (rotating on flexure strips), entering the transducer coil without contact (see ref. 2 for details).
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