WHEN using strain gauges of the normal wire type in the dynamic testing of helicopter components, notably rotor blades, Messrs. Saunders‐Roe found that such a high proportion of the gauges were failing that development was considerably retarded. The Electronics Division was therefore asked to devise an improved gauge and, in collaboration with Messrs. Technograph Printed Circuits Ltd., produced the foil strain gauge.
(1952), "The Saunders‐Roe Technograph Foil Strain Gauge: A New Type of Gauge which May Solve Many Problems", Aircraft Engineering and Aerospace Technology, Vol. 24 No. 11, pp. 348-348. https://doi.org/10.1108/eb032229
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