What criteria are important when selecting sensors for SHM applications?
Structural Health Monitoring (SHM) is not effective without the right sensors. Whether it concerns bridges, tunnels, buildings or offshore structures: the choice of sensors determines the reliability and value of the measurement data. But which criteria are really important when selecting sensors for SHM applications?
Reliable sensor data is crucial for infrastructure management
With increasing pressure on infrastructure – think traffic intensity, climate change and ageing of structures – the need for predictive maintenance is growing. In cities like Amsterdam, Rotterdam, Eindhoven and Groningen we see a growing demand for data-driven asset management. Sensors are the backbone of this.
The role of sensors within SHM systems
In a SHM system, sensors continuously collect measurement data on, for example, deformation, vibrations, load, temperature or crack formation. This data is used to signal risks at an early stage, to plan maintenance intelligently and to extend the lifespan of assets. An incorrect sensor choice can lead to inaccurate measurements, data loss or even incorrect conclusions.
Key selection criteria for SHM sensors
A well-considered sensor selection increases the reliability, efficiency and lifespan of your SHM system. When selecting sensors, consider the following criteria:
1. Type of quantity to be measured
Each application requires a different type of sensor. For vibrations accelerometers are used, for strain measurements strain gauges, and for temperature fiber optic sensors or thermocouples.
2. Accuracy and resolution
For critical structures such as railway bridges or movable bridges, high measurement precision is required. Choose sensors with low measurement error and high resolution.
3. Environmental and environmental resilience
Sensors must be resistant to moisture, heat, vibrations or chemical stress – especially in applications in maritime or industrial environments such as in the Rotterdam harbour or at sea.
4. Measurement frequency and response time
For dynamic structures such as wind turbines or high-rise buildings, a high measurement frequency is essential to record rapid changes.
5. Communication technology and integration
Wireless IoT sensors offer advantages in terms of installation and accessibility, especially in hard-to-reach locations. Pay attention to compatibility with your data platform or SCADA system.
6. Lifespan and maintenance requirements
Choose sensors with a long service life and low calibration requirements to keep maintenance burdens to a minimum.
7. Cost-benefit analysis
Determine the Total Cost of Ownership (TCO) based on purchase, installation, maintenance and data processing.
Get advice from an SHM expert
Are you involved in asset management, infrastructure management or maintenance advice? And do you work in regions such as South Holland, Utrecht, North Brabant or Northern Netherlands? Then get professional advice on sensor selection based on your specific project, environment and budget.
Contact us today for a customized sensor consultation or download the free checklist 'Sensor selection for SHM'.
Data acquisition systems in the construction sector
In the dynamic world of construction industry are data acquisition systems (DAQ) are essential for effectively monitoring, managing and optimizing construction projects. These systems enable construction companies to collect crucial data from various sources, such as sensors, machines and measuring instruments, giving them better insight into their operational processes.
Dexman
We at Dexman know better than anyone that the right information is the most important thing. Because if a measurement is not correct, the solution is of no use to you. This applies not only to the solutions we offer, but also to the way in which we communicate. At Dexman, we stand for quality, service and solution orientation. In this, it is important to provide the right information, offer a good solution and be honest with each other.
Dexman is a supplier with a wide range of load cells, weighing platforms, pallet scales, crane scales, force sensors, torque meters, measuring amplifiers, pressure sensors en displacement sensors. You can contact us for standard versions, but also for custom-made components and complete weighing solutions. The choice of the right components usually starts with extensive advice.
We are active in the following sectors: offshore, aerospace, logistics, agriculture, food and pharma. Thank you for your interest in Dexman products and services. We look forward to the opportunity to serve you..
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