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What is a SAW Sensor? Types, Working and Applications29 March 2021
The SAW (Surface Acoustic Wave) sensor is a new type of micro-sensor that has developed in recent years. It is an acoustic surface wave device as a sensor element that will be measured through the acoustic surface wave device. The speed or frequency of the wave is reflected and converted into the sensor output by the electrical signal.
RGB LED: Circuit, Difference and Application25 March 2021
White LED and RGB LED are the same in essence. They both hope to achieve the effect of white light, but one is directly presented in white light, and the other is made by mixing red, green and blue light. RGB lamps are integrated with the three primary colors. In addition, there are blue LEDs with yellow phosphors, and ultraviolet LEDs with RGB phosphors. On the whole, both have their imaging principles. The colors of some LED backlight panels are particularly clear and vivid, even to the level of high-definition TVs. This situation is exactly the characteristic of RGB, which advertises the characteristics of red as red, green as green, and blue as blue. In terms of color mixing, it has more diversified characteristics.
Analog Switch: Types and Application25 March 2021
The analog switch is mainly to complete the signal switching function in the signal chain. The switching mode of the MOS tube is adopted to realize the switching off or on of the signal link.
What is a Biosensor?23 March 2021
Biosensor is a device that is sensitive to biomass and can convert its concentration into electrical signals. It is an analytical tool composed of a fixed biosensitive material as an identification element, a suitable physiological transducer, and a signal amplifying device. Biosensor has the function of the receptacle and the converter.
What is RFID?23 March 2021
RFID is the abbreviation of Radio Frequency Identification. The principle of RFID is to carry out non-contact data communication between the reader and the tag to achieve the purpose of identifying the target. RFID has a wide range of applications. Typical applications include animal chips, car chip anti-theft devices, access control, parking lot control, production line automation, and material management.
Working and Types of Touch Screen20 March 2021
A touch screen is an inductive liquid crystal display device that can receive input signals such as contacts. When the graphic buttons on the screen are touched, the tactile feedback system on the screen can drive various connected devices which can be used to replace mechanical button panels, and use liquid crystal display screens to create dynamic audio-visual effects.
What is an Optical Sensor?19 March 2021
An optical sensor is a sensing device applied to measuring tools. The optical sensor uses the optical principle of the sensor for measurement, and in the process of using the optical sensor, because the measurement is not contacted, and it will not cause damage on the scene during the measurement. Therefore, the measurement of the optical sensor is very accurate, and it is hardly interfered by other factors.
Introduction to FinFET18 March 2021
The full name of FinFET is Fin Field-Effect Transistor. It is a new complementary metal oxide semiconductor transistor. The FinFET name is based on the similarity between the shape of the transistor and the fin.
What is a Synchronous Motor?16 March 2021
A synchronous motor is an AC motor that generates torque by the interaction of the excitation magnetic field supplied by a direct current and the rotating magnetic field of the armature, and rotates at a synchronous speed.) is an AC motor that generates torque by the interaction of the DC-powered excitation magnetic field and the rotating magnetic field of the armature, which rotates at a synchronous speed.
What is OLED?16 March 2021
OLED (Organic Light-Emitting Diode), is also known as organic electric laser display, organic light-emitting semiconductor. OLED is a kind of current-type organic light-emitting device that produces luminescence through the injection and recombination of carriers, and the luminous intensity is proportional to the injected current.
VRLA Battery: Working Principle, Capacity and Maintenance12 March 2021
VRLA batteries, which means Valve Regulated Lead Acid Battery was born in the 1970s. By 1975, a considerable scale of production had been formed in some developed countries, and industrialization was soon formed and put on the market in large quantities. Although this battery is also a lead-acid battery, it has many advantages compared with the original lead-acid battery, and is very popular with users, especially for those who need to install battery supporting equipment together (or a workshop). , Such as UPS, telecommunications equipment, mobile communication equipment, computers, motorcycles, etc.
Introduction to STM32 Microcontrollers12 March 2021
The STM32 series is based on the ARM Cortex-M3 core specially designed for embedded applications that require high performance, low cost, and low power consumption. This article introduces the definition, types, difference between the STM32 microcontroller and 51 microcontrollers as well as the basic system of STM32.