In daily life, LEDs have appeared more and more, but the price is still relatively expensive and prohibitive. However, the reporter learned from the Advanced Photonics Center of Southeast University that the center is studying a new LED production technology and is expected to reduce LED-related products by about half in 3-5 years.
"LED things are very good, very energy-efficient, but the price is too expensive, we ordinary people are still very hard to buy." Mr. Xu fancy a LED TV, but the price of tens of thousands of dollars made him "distracted." “The LED we are developing is using silicon wafers as the substrate.†Professor Zhang Xiong said that compared with the current sapphire in the LED industry, silicon wafers can be as large as 8 or even 12 inches, while sapphire wafers are generally only up to 4 inches. The larger the substrate size, the less the chip processing loss and the lower the production cost; now the same size silicon wafer is only less than one-third of the sapphire price. "At present, our research and development work has just begun. It is expected to be industrialized in a large scale in the next 3-5 years. If the research and development is successful, the price of LED products will drop significantly. For the most common LED TV, the price will drop by half. about."
Floating Ball Level Controller
The floating ball liquid level controller is composed of floating ball, plug rod, etc. It is installed on the top of the container through the connecting flange, and the floating ball floats on the liquid level according to the principle of equal volume of liquid. When the liquid level of the container changes, the floating ball also moves up and down. Due to the magnetic effect, the dry spring of the floating ball liquid level controller is magnetically attracted to change the liquid level position into an electrical signal, and the actual position of the liquid is digitally displayed through the display instrument, Floating ball liquid level controller to achieve remote detection and control of liquid level.
The floating ball liquid level controller is designed according to Archimedes' buoyancy principle. When the liquid level of the container changes, the floating ball also moves up and down. Due to the magnetic effect, the dry reed of the floating ball liquid level controller is magnetically attracted, so that the resistance in the sensor changes linearly, and then the converter converts the change of the resistance value into 4mA ~ 20mA standard DC signal output, Realize the remote detection and control of liquid level.
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Taizhou Jiabo Instrument Technology Co., Ltd. , https://www.jbcbyq.com