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At present the main types of monitoring observations on operating hydraulic structures are performed by means of mechanical and optical-mechanical measurement means requiring considerable labor expenditures and not providing the necessary promptness of monitoring. A number of string transducers have been developed and are being manufactured for prompt remote monitoring of the state of structures and automation of monitoring operations [I]. Measure~ ment automation means, intended for creating automated systems for monitoring the state of structures, are being readied for production. String transducers are finding the most effective use when measuring settlement, horizontal displacements, levels of the depression surface, discharges in collector drains, and deformation of the expansion, settlement, and horizontal joints in structures. Automation of these measurements, which compose the bulk of instrumental observations of the state of operating structures, substantially simplifies the use of computers for data processing and gives the operating personnel prompt information about the state of structures and their foundations.

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