CoreMorrow piezo actuator PSt150/20/200VS25, the linear stroke range is 190μm, and the push/pull force can be withstand 7300N and 1000N respectively. The detailed parameters are as follows.

Technical parameter

· Model：PSt150/20/200VS25
· Displacement: 190µm（0~150V）

· Stiffness：40N/µm

· Push/pull force：7300/1000N

· Capacitance：145µF

· Resonant frequency：3kHz

· Length：199mm

· Driving voltage: 0~150V

About model

The outer diameter of the PSt150/20/200VS25 piezoelectric actuator is 25mm, and the VS25 included at the end of the model represents its outer diameter. The 150 in the PSt150 represents its upper limit driving voltage of 150V, and the value is 200, it is about the displacement range of the piezoelectric actuator.

About structure

The inside of the 200VS25 piezoelectric actuator adopts direct drive structure, and the displacement of the piezoelectric actuator is 1:1. The displacement is not amplified by the mechanism hinge, so its height is 199 mm.

Load connection method

200VS25 piezo actuator can be connected to variety of loads. The default internal threaded terminal can also be externally threaded, plane, Sphere, etc. At custom designed terminal connections can be made according to customer requirements.

About open/closed loop control

In order to improve the linearity of the displacement of the piezoelectric actuator, the closed-loop feedback sensor can be selected to feedback the sensor voltage signal of the feedback displacement amount to the matched closed-loop piezoelectric controller in real time, and the piezoelectric controller performs servo control through the internal algorithm circuit. . The closed-loop version of the integrated sensor is 200VS25, which has a linearity of 0.1% F.S. and a repeatability of 0.05% F.S. Regardless of the open-loop version or the closed-loop version, it is not reflected on the model PSt150/20/200VS25. In appearance, there is only one voltage drive line in the open loop, and the closed loop version has one more closed loop sensing line.

About operating frequency

In general, the operating frequency of piezoelectric actuator is related to the driving voltage and the electrostatic capacity. Since the piezoelectric ceramic used in the 200VS25 piezoelectric actuator has a long length and its electrostatic capacitance is very high, it is 145μF. In order to be smaller than the operating power of the piezoelectric actuator by 5W, the full stroke range is only suitable for static operation.