Principle circuit of aisle lights that are automatically lit at night

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The photoresistor LDRL detects ambient light and darkness. The CD4060 is an oscillator and a fourteen-level binary counter. After dark, LDR1 resistance increases, T5 is cut off, T2 and T4 are turned on, 4060 third pin potential becomes low, T3 is also turned on, LED2 emits light, and LDR2 is lighted and the resistance becomes small to make T6 turn on. Thus, two-way The thyristor BT136 is triggered to turn the aisle light on. The oscillation frequency of the 4060 can be adjusted to about 1 Hz by VR1, and the state of the Q4 is flipped once every time the binary counter receives 16 pulses. After each 16384 pulses, the potential of the 14 feet becomes high, the thyristor is turned off, and the oscillator is also stopped by connecting D1 to 11 feet.

Aisle light circuit that automatically lights up in the night

PZT Piezoelectric Elements

Piezoelectric ceramic are a ferroelectric compound. This means, that the electro-mechanical conversion process for producing a motion is related a kind of self-enhancement process based on an internal reorganization of the material's structure. This self-enhancement process results in the higher piezoelectrical efficiency of PZT when compared to natural materials like quartz.

Piezoelectric ceramic are generally manufactured from PZT (Pb - lead, Zr - zirconium, Ti - titanium). The PZT- formulation can be varied with a variety of dopants allowing for a broad spectrum of material properties optimized for different application profiles.

Yuhai Company is able to manufacture piezoelectric ceramic elements in a wide range of shapes and sizes. piezoelectric discs, piezo rings, piezo plates, and piezo tubes (cylinders) is the main shapes Yuhai Company most frequently manufactures, we also have a great deal of experience manufacturing hemispheres, trapezoids and other customized shapes.

If the listed shapes and sizes was not the elements you are looking for, please contact us for more information. We can work with you to create the correct shape and size for you.

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Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com