{"id":32,"count":4,"description":"Strain gauges<\/strong>, to be\u00a0spot welded<\/a>\u00a0or embedded in concrete, are used for the measurement of strains caused by force applied (strain) to concrete, iron beams, reinforcement cages, piles and other.\r\n\r\n[expander_maker id=\"1\" more=\"More\" less=\"Close\"]\r\n\r\nMeasurements provided are in microstrain which is the ratio of the strain measured by the instrument at its measuring base.\r\n\r\nDifferences in use are as follows: the smaller spot weldable sensor offers greater resolution and sensitivity of measurement, having a base of approximately 50 mm, compared to our vibrating wire strain gauge with a base of 150 mm (to be welded to beams, embedded in concrete or fixed to walls with the appropriate bolts).\r\n\r\nSpot weldable strain gauges<\/strong> are generally used for the measurement of deformation or strain on load-bearing metal beams, or for the measurement of strain in pipelines such as gas, oil and similar, where the measurement of 3000\u00b5# strain corresponds roughly to a deformation of a tenth and a half of a millimeter on a 50mm base. These devices offer great precision and high resolution.\r\n\r\nStrain gauges with a 150 mm base are used particularly for the measurement of strain in concrete structures or reinforcement bars, where a measurement with an accuracy of up to 4-5 tenths of a millimeter is indispensable, although they provide measurements with a lesser precision and resolution than the above instrument.\r\n\r\nLike all\u00a0vibrating wire sensors<\/a>, strain gauges guarantee great reliability over time, making them ideal for long-term monitoring systems.\r\n\r\nThese instruments are able to measure the temperature and compensate the measurements obtained, when necessary, for thermal variation.\r\n

The most common applications of strain gauges are:<\/h2>\r\n