Distrelec electrical components Germany Distrelec model Distrelec price

Distrelec electrical components are tools that can accurately determine and measure temperature, divided into pointer thermometers and digital thermometers. Depending on the temperature-measuring substance used and the temperature measurement range, there are kerosene thermometers, alcohol thermometers, mercury thermometers, gas thermometers, resistance thermometers, thermocouple thermometers, radiation thermometers and optical pyrometers, bimetallic thermometers, etc. Digital thermometers can accurately determine and measure temperature, displaying it digitally rather than with a pointer or mercury. Hence they are called digital thermometers or digital temperature gauges.

Distrelec electrical components applications

Semiconductor diodes are used in almost all electronic circuits. The use of semiconductor diodes in circuits can protect the circuit, extend circuit life, and serve other functions. The development of semiconductor diodes has further optimized integrated circuits, playing a positive role in various fields. Diodes play many roles in integrated circuits, maintaining their normal operation. The following briefly introduces the role of diodes in the following four types of circuits. (1) Switching circuits: In digital and integrated circuits, the unidirectional conductivity of diodes is used to achieve circuit conduction or disconnection; this technology has been widely applied. Switching diodes can effectively protect circuits, preventing damage from short circuits and other issues, and can also realize the functions of traditional switches. Another characteristic of switching diodes is their fast switching speed, which is incomparable to traditional switches. (2) Limiter circuits: In electronic circuits, limiter circuits are commonly used to process various signals. They are used to selectively transmit part of the signal within a preset voltage level range. Most diodes can be used for limiting, but sometimes specialized limiter diodes are required, such as when protecting instruments. (3) Voltage regulation circuits: Zener diodes are typically used in voltage regulation circuits. They are junction-type silicon semiconductor diodes manufactured using special processes. These special diodes have high impurity concentrations and high charge density in the space charge region, making it easy to form a strong electric field. When the reverse voltage across the Zener diode reaches a certain value, the reverse current increases sharply, causing reverse breakdown. (4) Varactor circuits: Varactor diodes are commonly used in varactor circuits to achieve automatic frequency control, tuning, frequency modulation, and scanning oscillation.

Distrelec electrical components uses

Specialized solid-state relays can feature short-circuit protection, overload protection, and overheat protection functions. When combined with hardwired logic encapsulation, they can realize intelligent modules required by users, directly for use in control systems. Solid-state relays are widely used in computer peripheral interface equipment, constant temperature systems, temperature regulation, electric furnace heating control, motor control, CNC machinery, remote control systems, industrial automation devices; signal lights, dimming, flashers, stage lighting control systems; instruments and meters, medical devices, copiers, automatic washing machines; automatic fire fighting, security systems, and as switching switches for power capacitors for grid power factor compensation, etc. Additionally, they are extensively used in chemical, coal mining, and other environments requiring explosion-proof, moisture-proof, and corrosion-resistant properties.

Distrelec electrical components principle

Photoelectric sensors generally consist of 2 parts: processing channels and processing elements. Their basic principle is based on the photoelectric effect, converting changes in the measured quantity into changes in light signals, and then using photoelectric elements to further convert non-electrical signals into electrical signals. The photoelectric effect refers to the phenomenon where light irradiating an object can be viewed as a series of photons with specific energy bombarding the object. At this time, photon energy is transferred to electrons, and the entire energy of one photon is absorbed by one electron at once. After gaining the energy transmitted by the photon, the state of the electron changes, causing the corresponding electrical effect in the illuminated object. The photoelectric effect is usually divided into 8 categories: ① The phenomenon where electrons escape from the surface of an object under light irradiation is called the external photoelectric effect, such as in phototubes and photomultiplier tubes; ② The phenomenon where the resistivity of an object changes under light irradiation is called the internal photoelectric effect, such as in photoresistors and phototransistors; ③ The phenomenon where an object generates an electromotive force in a certain direction under light irradiation is called the photovoltaic effect, such as in photocells. Photoelectric detection methods have advantages such as high precision, fast response, and non-contact operation, and can measure many parameters. The sensor structure is simple and flexible in form, so photoelectric sensors are very widely used in detection and control. Photoelectric sensors are key components for achieving photoelectric conversion in various photoelectric detection systems; they are devices that convert light signals (visible and ultraviolet laser light) into electrical signals. Photoelectric sensors use photoelectric devices as conversion elements. They can be used to detect non-electrical physical quantities that directly cause changes in light intensity, such as light intensity, illuminance, radiation temperature measurement, gas composition analysis, etc.; they can also be used to detect other non-electrical quantities that can be converted into changes in light intensity, such as part diameter, surface roughness, strain, displacement, vibration, speed, acceleration, as well as object shape and working status recognition. Photoelectric sensors have characteristics such as non-contact operation, fast response, and reliable performance, so they are widely used in industrial automation devices and robots. New photoelectric devices continue to emerge, especially the birth of CCD image sensors, which has opened a new chapter for the further application of photoelectric sensors.

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