Design development and testing of wireless strain sensor applied to structures

As there exist some problems for strain collection and transmission system, a kind of wireless sensor and system applied to structural strain monitoring is proposed according to principle of resistance-strain flake. The modules and functions of the system core, wireless strain sensor, are introduced. The design of the typical circuit is discussed, and the software flow is given. The experiment results of the designed system are given. The research indicates that the wireless collection and transmission system designed has such many characteristics as collecting in precision, transmitting reliably, low price, used simply and handily, and that it is applied compatibly to civil engineering monitoring.