Before using our products or designing a system using our products, read the precautions and specifications for the products you intend to use.
The products are extremely reliable with proven life of more than 1010 cycles. Nevertheless, environmental influence and misconceptions in the design phase may lead to failures in application. The main failures with piezoelectric actuators are cracking of the ceramics monolithic block, short-circuit, and open-circuit. Before using the products, also consider safe design praxis of electrical engineering. Carefully ensure prevent electric shock, cause and spread of fire. Use the products after checking the working conditions and rated performance of each of the multilayer piezoelectric actuator series. Stay within mechanical, thermal and electrical, and environmental limits.
· Be careful with the mechanical handling of piezo stack
In case the actuator was exposed to higher temperature during storage or operation clos or above the Curie temperature, the piezo material may loose its polarization. In this state, the piezo effect is weakened or non-existent. The polarisation procedure requires a voltage source. A standard Piezotechnik amplifier can be used in combination with a signal source to set the output voltage. The voltage should be ramped up to 150 +/- 0.2V and retained for 10s and than ramped down to 0V.