Energy Industry

In modern solar power plants, precise distance and position sensors ensure that the panels are always optimally aligned with the sun and thus achieve maximum energy yields. A particularly proven method is the use of draw wire sensors as feedback elements in the tilt system (solar tracker): Sensors from the SX80 series measure the extended length of the boom or the lifting device and continuously supply precise position data, which control algorithms use as a basis to continuously adjust the panel tilt. This allows the alignment to be dynamically optimized even in changing light conditions.

As an alternative to draw wire sensors, magnetic scales from the MXAZ series can also be used, depending on the available space and installation situation. As a non-contact measuring system, they operate wear-free, but do not fully achieve the resistance of the more durable draw wire sensors.

In addition, inductive displacement sensors are also used on the drive elements, depending on requirements. Sensors from the ISZL series detect the position of metallic components without contact, for example on linear axes or toothed belt drives, and provide high-resolution feedback for precise position control of the panels.

The combination of these sensor technologies creates a robust, redundant tracking system. This has proven to lead to higher energy yields compared to fixed systems and at the same time ensures long-term reliability.

Wind power plants are subject to permanent dynamic loads: Rotor blades constantly change their inclination and the gearbox has to withstand enormous forces. Specialized distance and position sensors are used to ensure reliable energy generation and a long service life.

The pitch of the rotor blades is precisely monitored by rotation angle sensors. WPH series sensors detect the exact angle of each blade position in real time, enabling optimized alignment with the wind. This precise angle measurement maximizes performance and reduces mechanical stress - a decisive factor for efficiency and safety.

Gearboxes in wind turbines generate vibrations during operation, which can indicate incipient damage or imbalances. Inductive sensors measure the smallest vibration amplitudes without contact and provide early warning signals. This allows maintenance intervals to be planned in advance and costly failures to be avoided. Thanks to their compact housing, sensors from the ISZL series offer an excellent option for installation even in tight spaces.

The use of distance and position sensors in wind power plants not only increases performance, but also ensures long-term operational reliability.

Geothermal energy is playing an increasingly important role in the energy sector as a sustainable and reliable source of energy. However, geothermal systems are subject to challenging conditions - in particular high temperatures and high mechanical loads. Precise distance and position sensors are used to ensure the operational safety and efficiency of such systems.

A proven example is the use of LVDT (Linear Variable Differential Transformer) sensors to monitor the thermal expansion of pipelines. As high temperatures occur in geothermal plants, the pipes expand accordingly - uncontrolled movement can lead to material fatigue or damage. LVDTs from the LV series continuously measure these expansions and thus enable targeted design and monitoring of the system components.

Particularly advantageous: LVDT sensors are robust and designed for temperatures up to 200 °C, which makes them ideal for use in geothermal applications. They provide reliable measured values even under extreme conditions and therefore make a significant contribution to the long-term stability, efficiency and safety of geothermal energy systems.

In hydropower plants, precise sensor technology plays a key role in ensuring safe and efficient operation. Distance and position sensors detect important movements and states of mechanical components - even under extreme environmental conditions.

Eddy current probes from the WST series contactlessly monitor the condition of the turbines and detect even the smallest vibrations or deviations in running behavior. In this way, signs of wear or imbalances can be detected at an early stage before major damage occurs. This increases operational reliability and extends the service life of the turbine.

Draw wire sensors from the SX300 series are used in hydraulic cylinders, for example on lock gates or dams. They detect the exact stroke position of the cylinder and thus enable precise control of the gate movement. The robust design of these sensors allows them to be used in harsh environments with high humidity, temperature fluctuations and heavy mechanical loads.

The targeted use of distance and position sensors can reduce downtimes in hydropower plants, lower maintenance costs and thus improve the efficiency of energy generation significantly.

In biogas plants, precise measurement of the gas volume and the tank status ensures safe and efficient operation. Draw wire sensors, which have a measuring wire that runs over the tarpaulin of the gas storage tank, are a proven solution. As the flexible storage tank expands during filling, the wire is pulled out of the sensor, allowing the current fill level to be precisely determined and integrated into the process control system.

Thanks to robust, corrosion-resistant cable and housing materials, draw wire sensors from the SX135 series are reliable even in damp environments. Continuous level monitoring means that volatile fluctuations can be detected immediately and control systems for gas extraction or combined heat and power generation can be optimally adapted. Draw wire sensors thus make a decisive contribution to maximizing the utilization and efficiency of a biogas plant and avoiding undesirable overfilling or underfilling.