The world around us is full of various machines that perform repetitive operations. For example, smart meters will read and record power consumption data, and then every few minutes, upload the read data to the regional consolidation equipment to reset and repeat The previous action. Other equipment such as portable medical instruments, factory production line equipment and brushless motors must also carry out a series of measurement actions and react to the measurement data before restarting the same process. A variety of industrial products, such as online parameter recorders, error recorders, engine monitors and battery chargers, and heating / ventilation / air conditioning equipment controllers (HVAC), are also used in repetitive event management components. Overall performance is better than EEPROM nvSRAM is suitable for repetitive event applications In many applications, persistent or non-volatile memory is an essential element for handling repetitive events. Smart meters must not fail due to power outages when processing complex operations. Once the readings are lost, they must be re-acquired in real time. There may also be problems such as missing samples and damaged materials, resulting in dissatisfaction among operators and users. Recurring event memory capacity usually only needs 16k? 2MB, and has a low-cost, low-switching noise serial interface, and must perform random access and sequential read / write operations at reasonable speeds such as serial peripheral interface (SPI) and internal integrated circuit (I2C). The most suitable component in the past is the serial electronic erasable read-only memory (EEPROM). This kind of affordable memory can meet the needs of such applications in terms of cost, density and read / write speed, but However, there are two shortcomings. One of them is limited durability. Generally, the upper limit is only allowed to be stored for 100,000 times. The second is that the chip / block erase time may exceed 1 second. After designers have to spend a lot of time to eliminate these problems, In order to enjoy the cost advantages of serial EEPROM. A non-volatile static random access memory (nvSRAM) tailored specifically for repetitive event systems. The operating mode is similar to SRAM. It can perform high-speed reading, high-speed writing, random access, and continuous burst mode, but There is no problem that the serial EEPROM or serial flash device has a long working time when erasing blocks and IC data, and the user will not feel the non-volatile memory working behind the scenes at all. Once the IC detects an abnormal power supply, it will automatically move all data to the non-volatile storage element, and the stored data will not be damaged when the power supply is interrupted. When the power is restored, the system will automatically move the data back to SRAM, and the system will return to the state before the power interruption and continue to operate. The durability of this type of non-volatile memory exceeds one million storage times. Since these storage events only occur when there is a power interruption, for embedded and industrial applications, such durability is effectively equivalent to unlimited. SRAM continues to operate in normal mode, with an unlimited number of read and write functions. In addition, in these low-density memories, the increased unit circuit will provide nvSRAM processing results, and the cost is very close to the serial EEPROM or serial flash device. Considering its improved benefits for repetitive event applications, it can be said that Quite a cost-effective option. Piezoelectric Elements For Inkjet Piezo Transducer
Piezoelectric ceramic ring
Inkjet Piezo Transducer,Piezoelectric Vibration Transducer,Piezoelectric Rings,Piezoelectric Elements For Inkjet Piezo Transducer Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com
Applications: ultrasonic vibration tranducer for inkjet printer
Vibration mechanism of inkjet printer:
Generally, it is composed of piezoelectric ceramics and driving rods. By high-frequency electric excitation, piezo ceramics produce high-frequency ultrasonic vibration (above 60 kHz or higher), which is transmitted to the driving rod and generates high-frequency micro-displacement (back and forth expansion) at its front end.
Piezo ceramics components features :
1. High vibration amplitude and can withstand higher power.
2. The product has high reliability, strong maintainability, and is not easy to break down or off-line.
3. The frequency can be adjusted in a wide range, generally within the range of 10KHz.
Yuhai support all the new developping transducer, Welcome the customized elements inquiry.
The present piezoelectric elements for Inkjet piezo transducer is following :
Piezo rings OD4*ID2*2.5mm price USD1.20/pc, 2000pcs
Material: PBaS-4
Fr.: 694 KHz ±5KHz
K33: ≥0.55
Tg loss <0.5%
Ct 60pF ±12.5%
Piezo rings OD4*ID2*2.5mm price USD1.20/pc, 2000pcs
Material: PSnN-5
Fr.: 626KHz ±5KHz
K33: ≥0.57
Tg loss < 2%
Ct 53pF ±12.5%
Piezo rings OD6*ID2.5*2mm price USD1.50/pc, 2000pcs
Material: PZT-41
Fr.: 785 KHz ±5KHz
K33: >0.53
Tg loss < 0.5%
Ct 107 pF ±12.5%
Piezo rod OD3*7mm price USD1.20/pc, 2000pcs
Material: PLiS-51
Fr.: 192 KHz ± 3KHz
K33: >0.62
Tg loss < 2%
Ct 18.7 pF ±12.5%