tdk-lambda electrical components Germany tdk-lambda model tdk-lambda price

tdk-lambda electrical components utilize the good conductivity and fluidity of mercury to control the opening and closing of electrical circuits. They consist of a glass tube, mercury, fixed electrodes, lead wires, etc. After evacuating the air from the tube, it is filled with various gases and sealed. It is suitable for environments with dust, oil, water vapor, and corrosive gases, and can also be used as an explosion-proof switch in places with explosive gases. Given the high surface tension and specific gravity of the mercury inside the tube, along with its fluidity, the position of the mercury changes immediately with even a slight tilt of the glass tube, making surface contact with the electrodes, thus enabling the switching of high AC and DC currents. Additionally, this type of switch features a lifespan of several million cycles at rated current, small size, high sensitivity, no mechanical noise, and low cost, making it widely used as a switch for automatic control.

tdk-lambda electrical component features

1. High sensitivity; 2. Geometric shape has multi-faceted adaptability, allowing the manufacture of fiber optic sensors in any shape; 3. Can manufacture devices that sense various physical information (sound, magnetism, temperature, rotation, etc.); 4. Can be used in high voltage, electrical noise, high temperature, corrosion, or other harsh environments; 10. And has inherent compatibility with fiber optic telemetry technology. The advantages of fiber optic sensors compared to traditional sensors are that they use light as the carrier of sensitive information and optical fiber as the medium for transmitting sensitive information, possessing the characteristics of optical fiber and optical measurement, with a series of unique advantages. Good electrical insulation, strong anti-electromagnetic interference capability, non-intrusive, high sensitivity, easy to realize long-distance monitoring of measured signals, corrosion resistance, explosion-proof, flexible optical path, and easy connection to computers. Sensors are developing towards sensitivity, precision, strong adaptability, compactness, and intelligence. They can act as human eyes and ears in places inaccessible to humans (such as high-temperature areas or areas harmful to humans, such as nuclear radiation zones), and can even surpass human physiological limits, receiving external information imperceptible to human senses.

tdk-lambda electrical component principle

The forward characteristic of the volt-ampere characteristic curve of a Zener diode is similar to that of a ordinary diode. In the reverse characteristic, when the reverse voltage is lower than the reverse breakdown voltage, the reverse resistance is very high, and the reverse leakage current is extremely small. However, when the reverse voltage approaches the critical value of the reverse voltage, the reverse current increases suddenly, known as breakdown. At this critical breakdown point, the reverse resistance drops suddenly to a very small value. Although the current changes within a large range, the voltage across the diode remains basically stable near the breakdown voltage, thereby realizing the voltage stabilization function of the diode.

tdk-lambda electrical component principle

LCD is a display that uses liquid crystal as the material. Liquid crystal is a class of organic compounds between solid and liquid states. At room temperature, it exhibits both the fluidity of a liquid and the optical anisotropy of a crystal. It becomes a transparent liquid when heated and a crystalline turbid solid when cooled. Under the action of an electric field, the arrangement of liquid crystal molecules changes, affecting the intensity of the incident light beam passing through the liquid crystal. This change in light intensity is further manifested as a change in brightness through the action of polarizers. Accordingly, by controlling the electric field of the liquid crystal, changes in light brightness can be achieved, thereby achieving the purpose of information display. Therefore, the role of liquid crystal material is similar to small "light valves." Since there are control circuits and drive circuits around the liquid crystal material, when the electrodes in the LCD generate an electric field, the liquid crystal molecules twist, thereby regularly refracting the light passing through them (optical activity of the liquid crystal material), which is then filtered by the second layer of polarizer and displayed on the screen. It is worth noting that because the liquid crystal material itself does not emit light, LCD usually requires an additional light source for the display panel. The main light source system is called the "backlight module," where the backlight plate is composed of fluorescent materials that can emit light, primarily providing a uniform backlight source.

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