Piezoelectric Sensor

Yes. We have models with stainless steel casing and IP68 sealing grade, which are specially used for long-term burial. However, it should be noted that the piezoelectric sensor is not suitable for measuring true static displacement in principle. If you focus on extremely low frequencies (such as <0.1 Hz) may need to be combined with other sensor solutions. Generally, within the frequency range of pile driving vibration and vehicle-induced vibration, there is no problem.

Generally, we have multiple sensitivity levels to choose from, such as 10 pC/g, 50 pC/g, and 100 pC/g. These. If an unconventional range is required, the piezoelectric element preload and amplification circuit are usually fine-tuned on the existing structure, but it involves recalibration and temperature compensation parameter adjustment. It is recommended that the detailed requirements be submitted to the engineer for evaluation.

If the measuring point is not more than 100 meters away from the collection station, the normal environment IEPE The most convenient type is the voltage signal. If the temperature is high or a long transmission distance is required, the charge output type is more suitable, but an external charge amplifier is required. We do not produce charge amplifiers, but we can recommend several models that match our sensors.

The most important thing is the flatness and stiffness of the mounting surface when fixing it with bolts. mm, the torque should be tightened according to the recommended value in the manual. If it is too loose, the response will be large, and if it is too tight, it may damage the thread. If it is installed by sticking, try to avoid using soft glue, which will eat up the high-frequency signal. When wiring, the signal line and the power line should be separated to reduce interference.

We have authorized partners in major markets to provide local inventory and basic maintenance. If it exceeds the local solution capabilities, it can be sent back to the Chinese factory. Non-man-made damage is free of maintenance fees during the warranty period. Man-made damage or out-of-warranty will be inspected first before quoting, and repaired after the customer agrees. The cost is much lower than buying a new one. For emergency projects, we can sometimes provide a spare machine to be installed first.