SHM (Structrural health monitoring system)
based on ZET 7176 interface modules
Structural health monitoring system (also referred to as ESMS – engineering structures monitoring system) based on ZET 7176 interface converters enables connection of up to 32 measuring sensors to a single interface module (max data exchange speed – up to 1000 kb/s).
Implementation of systems based on ZET 7176 interface converters is an optimal solution for housing and utilities sector. It can be used for monitoring and control of buildings and structures technical condition since it enables evaluation of building’s technical state and defects detection in remote way.
Structural scheme
ZET 7176 interface converter (Ethernet/Wi-Fi ↔ CAN 2.0) is placed inside of leak-proof case or electrical cabinet (depending on particular mounting area and design documentation requirements). The interface converter is mounted on a DIN-rail using mounting hardware, which is delivered together with the module. Next to the interface converter there is mounted a power supply module (220V → +24V) and a measuring line connector.
It is also possible to place digital sensors (laboratory version) inside of the leak-proof case. In this case the digital sensors mounted on the controlled structures are connected to the interface converters via measuring lines.
ZET 7110-DS digital strain gauges
Are the key elements used within the scope of engineering structures stress-strain monitoring subsystem. They enable deformation and bending control of the controlled structures’ bearing elements.
The maximum measurements range is -1800…+1800 µm/m – it depends on sensor’s mounting technique. The minimal registered value for minimal measurements range is 0,2 µm/m.
ZET 7154 are major components of building tilt and controlled points relative displacement monitoring subsystem.
Minimal measurements range: -15°…+15°, minimal registered value: 0,01°.
ZET 7140-S digital displacement sensors
ZET 7140-S digital displacement sensors are measuring instruments used for tilt and controlled points relative displacement monitoring subsystem. The sensors are mounted in the areas where tilt and structures relative displacement are most likely to occur.
Measurements range: -2500…+2500 µm/m, minimal registered value: 5 µm/m.
ZET 7152-N digital vibration sensors
ZET 7152-N are used within the scope of natural oscillations frequency and logarithmic decrement control system. They enable control of structural elements vibrational acceleration.
Measurements range: 0,005…14 m/s2, minimal registered value: 0,001 m/s2.
The digital seismometers are measuring instruments used for natural oscillations frequency and logarithmic decrement control. They enable natural frequency period and corresponding logarithmic decrement control.
Measurements range: 0,005…14 m/s2, minimal registered value: 0,001 m/s2.
One more advantage of these systems’ implementation is the possibility of sensor’s remote metrological verification (i.e. in-place verification).
Metrological self-check is performed by means of certified software via ZETLAB cloud server. The procedure is performed by our specialists from metrological department.