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System for measuring the stress/tension in the concrete foundation
of wind turbines
Delivery of a system for measurement of compressive stress and stress / strain or tensile stress in concrete for foundations of wind turbines.
Technical implementation in accordance with the system.
The foundation is a data logger for 32 channels RS485, sensors for compressive stress and tensile stress sensors are supplied.
Each sensor has an own temperature sensor and a sensor ID in the ROM without own electronics for the measurement of the TOF.
The sensor cable is connected to a 16 -channel multiplexer. Each multiplexer includes electronics for measuring the TOF.
Each multiplexer has its own electronics unit in die-cast aluminum housing.
The data output is a digital output RS485.
Sensor ID, channel number, temperature 12 Bit, TOF in ps resolution.
The data is stored in a data logger on SD card.
The data can be read via USB.
On the RS485 bus more arbitrary devices can be connected.
The real-time data can with a computer program in any physical units, such as stress, strain, load or elongation be converted .