cis electrical components Germany cis model cis price

cis electrical components refer to an electronic component that can open a circuit, interrupt current flow, or direct it to another circuit. The most common switches are manually operated electromechanical devices with one or more electrical contacts. "Closed" contacts indicate that the electrical contact is conductive, allowing current to flow; "open" switch indicates that the electrical contact is non-conductive, forming an open circuit and preventing current flow. The simplest switch consists of two metal pieces called "contacts"; when the two contacts touch, they complete the current loop, and when they do not touch, the current path is open. When selecting contact metals, consideration must be given to their degree of corrosion resistance, because most metals form insulating oxides after oxidation, preventing the contacts from functioning properly. Selection of contact metals must also consider factors such as electrical conductivity, hardness, mechanical strength, cost, and toxicity. Contacts are sometimes plated with corrosion-resistant metals. Plating is generally applied to the contact surface to avoid performance degradation due to oxides. Sometimes non-metallic conductive materials, such as conductive plastics, are used for the contact surface. In addition to contacts, switches have moving parts that make or break the contact. Switches can be classified into toggle switches, pushbutton switches, rocker switches, etc., based on the different moving parts, and the moving parts can also be other types of mechanical linkages.

cis electrical component principle

When two ends of conductors with different compositions (called thermocouple wires or thermoelectrodes) are joined to form a loop, an electromotive force is generated in the loop when the temperatures at the two junctions differ. This phenomenon is called the thermoelectric effect, and this electromotive force is called thermoelectric potential. Thermocouples use this principle for temperature measurement. The end directly exposed to the measured medium temperature is called the hot junction (also known as the measuring end), and the other end is called the cold junction (also known as the compensation end). The cold junction is connected to a display instrument or associated instrument, which indicates the thermoelectric potential generated by the thermocouple. A thermocouple is essentially an energy converter that converts thermal energy into electrical energy, using the generated thermoelectric potential to measure temperature. Regarding the thermoelectric potential of a thermocouple, note the following issues: 1, the thermoelectric potential of a thermocouple is the difference between the temperature functions at the two ends of the thermocouple's hot junction, not a function of the temperature difference between the cold junction and the hot junction; 2, the magnitude of the thermoelectric potential generated by a thermocouple, when the thermocouple material is homogeneous, is independent of the length and diameter of the thermocouple, depending only on the composition of the thermocouple material and the temperature difference between the two ends; 3, once the material composition of the two thermocouple wires is determined, the magnitude of the thermoelectric potential depends only on the temperature difference of the thermocouple; if the temperature of the cold junction is kept constant, the thermoelectric potential of the thermocouple is then a single-valued function of the hot junction temperature. Join two conductors or semiconductors of different materials, A and B, by welding them to form a closed loop, as shown in the figure. When there is a temperature difference between the two junction points 1 and 9 of conductors A and B, an electromotive force is generated between them, thereby forming a current of a certain magnitude in the loop. Thermocouples operate based on this effect.

cis electrical component function

The main functions of a potentiometer in a circuit include several aspects: 1. Used as a voltage divider. A potentiometer is a continuously adjustable resistor. When adjusting the knob or slider of the potentiometer, the movable contact slides along the resistive element. At this time, the output terminal of the potentiometer provides an output voltage related to the external voltage applied to the potentiometer and the angle or travel of the movable arm. 2. Used as a variable resistor. When a potentiometer is used as a variable resistor, it should be connected as a two-terminal device, so that a smoothly and continuously changing resistance value can be obtained within the travel range of the potentiometer. 3. Used as a current controller. When a potentiometer is used as a current controller, one of the selected current output terminals must be the terminal led out from the sliding contact.

cis electrical component types

1. Classification by mounting type: As thermocouples are widely used as the primary temperature sensing method, there are various requirements for their mounting devices and technical performance. Therefore, thermocouple mounting devices are divided into six types: without mounting device, threaded type, fixed flange type, movable flange type, movable flange angle form, and tapered protection tube type. 8. Classification by assembly and structural style: Based on the performance and structural style, thermocouples can be divided into detachable thermocouples, explosion-proof thermocouples, armored thermocouples, and spring-loaded fixed thermocouples for special applications.

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