MITSUBISHIELECT electrical components Germany MITSUBISHIELECT model MITSUBISHIELECT price

MITSUBISHIELECT electrical components are commonly used temperature-sensing elements in temperature measurement instruments. They directly measure temperature and convert the temperature signal into a thermoelectric EMF signal, which is then converted into the temperature of the measured medium by an electrical instrument (secondary instrument). The external shapes of various thermocouples often differ significantly depending on requirements, but their basic structures are largely similar, typically consisting of main parts such as hot electrodes, insulating protective tubes, and terminal blocks. They are usually used in conjunction with display instruments, recording instruments, and electronic regulators. In industrial production processes, temperature is one of the important parameters that need to be measured and controlled. In temperature measurement, thermocouples are widely applied due to many advantages such as simple structure, ease of manufacturing, wide measurement range, high accuracy, low inertia, and output signals suitable for long-distance transmission. Additionally, since a thermocouple is a passive sensor that does not require an external power supply during measurement, it is very convenient to use and is often employed to measure the temperature of gases or liquids inside furnaces and pipelines, as well as the surface temperature of solids.

MITSUBISHIELECT electrical component principle

LCD is a display that uses liquid crystal as the material. Liquid crystals are a class of organic compounds intermediate between the solid and liquid states. At ambient temperature, they exhibit both the fluidity of liquids and the optical anisotropy of crystals; when heated, they become a transparent liquid state, and upon cooling, they turn into a crystalline, opaque solid state. Under the influence of an electric field, the alignment of liquid crystal molecules changes, thereby affecting the intensity of incident light passing through the liquid crystal. This change in light intensity is further manifested as variations in brightness due to the action of polarizers. Accordingly, by controlling the electric field applied to the liquid crystal, variations in light brightness can be achieved, thus enabling information display. Therefore, the role of liquid crystal material is analogous to an array of small "light valves." Because control circuits and driver circuits are present around the liquid crystal material, when electrodes in the LCD generate an electric field, the liquid crystal molecules twist, causing regular refraction of the light passing through them (the optical activity of the liquid crystal material), which is then filtered by a second polarizer and displayed on the screen. It is worth noting that since liquid crystal material does not emit light itself, LCD units typically require an additional light source for the display panel. The primary lighting system is called the "backlight module," in which the backlight plate consists of fluorescent materials that emit light, mainly providing a uniform backlight source.

MITSUBISHIELECT electrical component classification

Terminal blocks can be divided into European-style terminal block series, plug-in terminal block series, transformer terminal blocks, building wiring terminals, barrier-type terminal block series, spring-type terminal block series, DIN rail-mounted terminal block series, wall-through terminal block series, optocoupler-type terminal block series, various ring terminals, tubular terminals, wire terminals, copper strips, iron strips, etc. Usage methods include plug-in, barrier-type, spring-type, DIN rail-mounted, wall-through, and fuse terminals.

MITSUBISHIELECT electrical component classification

Plug-in fuses are often used at the end of lines for short-circuit protection of distribution branch circuits or electrical equipment. Screw-type fuses have a fuse indicator on the upper cap of the fusible element. Once the fusible element melts, the indicator pops out immediately and can be observed through the glass hole on the ceramic cap. They are commonly used in machine tool electrical control equipment. Screw-type fuses. Enclosed fuses are divided into filled fuses and non-filled fuses. Filled fuses generally use square ceramic tubes containing quartz sand and the fusible element, offering strong breaking capacity. Non-filled enclosed fuses enclose the fusible element in a sealed cylinder, having slightly lower breaking capacity. Fast-acting fuses are mainly used for short-circuit protection of semiconductor rectifier elements or rectifier devices. Since semiconductor components have very low overload capacity and can only withstand large overload currents for extremely short periods, short-circuit protection requires fast-acting fusing capability. The structure of fast-acting fuses is basically the same as that of filled enclosed fuses, but the material and shape of the fusible element differ; it is a variable-cross-section fusible element stamped from silver sheets with V shaped deep grooves. Fast-acting fuses are commonly referred to as "fast fuses," characterized by fast fusing speed, high rated current, strong breaking capacity, stable current-limiting characteristics, and small size. Self-resetting fuses use sodium metal as the fusible element, which has high electrical conductivity at room temperature. When a short-circuit fault occurs in the circuit, the short-circuit current generates high heat that rapidly vaporizes the sodium. The gaseous sodium presents a high-resistance state, thereby limiting the short-circuit current. After the short-circuit current disappears and the temperature drops, the sodium metal restores its original good conductivity. Self-resetting fuses can only limit short-circuit current and cannot truly disconnect the circuit. Their advantage is that the fusible element does not need to be replaced, allowing for repeated use.

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