Piezoelectric crystal valves are anti-magnetic and quiet, can be controlled by analog or digital methods, and the operating life can reach billions of times. Piezoelectric crystal elements, or "piezoelectric crystal pellets", can provide a near-perfect interface between electronic components and pneumatic components, converting electronic input signals quickly, easily and accurately into the required pneumatic pressure. This "pill" is essentially a packaged piezoelectric ceramic element, which acts as a continuously acting 3/2 pilot control valve. Based on the "jet and buffer" principle, the applied voltage causes the piezoelectric crystal element to bend between the air inlet and outlet, thereby controlling the flow of air.
Applying a varying voltage to the piezoelectric crystal element, the piezoelectric crystal element bends in a proportional manner, and a corresponding pressure change is generated in the guide cavity. A simple diaphragm mechanism acts as a pneumatic amplifier to automatically determine the best response to various operating conditions. In various dynamic applications, TeCno can use fast "proportional" adjustments, which are very accurate for slow speeds and extremes. The operation can be adjusted by "integrated". The combination of the characteristics of piezoelectric crystal 1 particles, pneumatic amplifiers and electronic actuators can ensure the highest accuracy, and the hysteresis, repeatability and sensitivity can be within 0.2%. According to aerodynamic standards, the dynamic performance is also very ideal, with a periodic frequency of 43 Hz.
In today's market, easy installation and operation are prerequisites. For many proportional control devices, the adjustment of all parameters is complicated. However, if you use Tecn, the piezoelectric crystal element, the parameter adjustment is already done in the factory, no need to adjust, or it can be automatically compensated. The end user can only exert influence on the ring magnification, so that the device can complete the task in an optimal state.
The use of piezoelectric crystal control has many advantages, among which the most appreciated advantages include: light weight, anti-vibration, good dynamic performance and operating performance in a wide temperature range. In addition, there are other things that are not so obvious, and can transmit even extremely small pressure changes to the outlet of the main valve, and at the same time to the pressure regulator in a similar manner. Through a sensor, the outlet pressure is continuously monitored and compared with the preset value. If there is any difference, a feedback signal is generated to the electronic control system, which then adjusts the control voltage of the piezoelectric crystal element.
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