kurth electrical components Germany kurth model kurth price

kurth electrical components are linear devices based on metallic induction. The function of a sensor is to convert various measured physical quantities into electrical signals. In production processes, displacement measurement is generally divided into two types: measuring physical dimensions and measuring mechanical displacement. Depending on the form of transformation of the measured variable, displacement sensors can be divided into analog and digital types. Analog types can be further divided into physical-property type and structural type. Commonly used displacement sensors are mostly analog structural types, including potentiometric displacement sensors, inductive displacement sensors, synchros, capacitive displacement sensors, eddy-current displacement sensors, and Hall-effect displacement sensors. An important advantage of digital displacement sensors is that they facilitate direct input of signals into computer systems. Displacement is a quantity related to the movement of an object's position during motion, and the scope of displacement measurement methods is quite extensive. Small displacements are typically detected using strain-gauge, inductive, differential transformer, eddy-current, and Hall-effect sensors. Large displacements are commonly measured using sensing technologies such as inductosyns, optical gratings, capacitive gratings, and magnetic gratings. Among these, optical grating sensors are increasingly widely used in industries such as machine tool machining and testing instruments due to their advantages, including ease of digitization, high precision (with current highest resolution reaching the nanometer level), strong anti-interference capability, absence of human reading errors, convenient installation, and reliable operation.

kurth electrical component parameters

1. Stable voltage refers to the stable voltage value generated across the terminals of a Zener diode when it passes the rated current. This value changes slightly with operating current and temperature. Due to differences in manufacturing processes, the stable voltage values of Zener diodes of the same model are not completely identical. 2. Reverse leakage current refers to the current passing through the Zener diode when it generates a stable voltage. Below this value, although the Zener diode can still regulate voltage, the regulation effect will deteriorate; above this value, as long as the rated power dissipation is not exceeded, it is permissible, and the voltage regulation performance will be better, but it will consume more electrical energy. 3. Dynamic resistance refers to the ratio of the change in voltage across the Zener diode to the change in current. This ratio varies with the operating current; generally, the larger the operating current, the smaller the dynamic resistance. 4. Rated power dissipation is determined by the allowable temperature rise of the chip, and its value is the product of the stable voltage and the maximum allowable current. 5. The temperature coefficient means that if the temperature of the Zener diode changes, its stable voltage will also undergo slight changes. The relative change in voltage across the diode terminals caused by a temperature change of 1℃ is the temperature coefficient (unit: %/℃). Generally speaking, stable voltages below 6V belong to Zener breakdown, and the temperature coefficient is negative; the temperature coefficient is positive. When the temperature rises, the depletion layer decreases. In the depletion layer, the valence electrons of atoms rise to higher energy levels, and a smaller electric field strength can excite valence electrons from the atoms to produce Zener breakdown, so its temperature coefficient is negative. Avalanche breakdown occurs when the depletion layer is wider and the electric field strength is lower. An increase in temperature increases the vibration amplitude of lattice atoms, hindering the movement of carriers. In this case, only by increasing the reverse voltage can avalanche breakdown occur, so the voltage temperature coefficient of avalanche breakdown is positive. For applications with high requirements for power supplies, two Zener diodes with opposite temperature coefficients can be connected in series for compensation. Due to mutual compensation, the temperature coefficient is greatly reduced. 6. Reverse leakage current refers to the leakage current generated by a Zener diode under a specified reverse voltage.

kurth electrical component principle

A diesel engine drives the generator to operate, converting the energy of diesel into electrical energy. Inside the diesel engine cylinder, clean air filtered by the air filter mixes thoroughly with high-pressure atomized diesel injected by the fuel injector. Under the compression of the upward-moving piston, the volume decreases, and the temperature rises rapidly, reaching the ignition point of diesel. The diesel ignites, the mixed gas burns violently, the volume expands rapidly, pushing the piston downward, which is called "power stroke". A gasoline engine drives the generator to operate, converting the energy of gasoline into electrical energy. Inside the gasoline engine cylinder, the mixed gas burns violently, the volume expands rapidly, pushing the piston downward to perform work. Whether it is a diesel generator or a gasoline generator, each cylinder performs work in a certain order. The thrust acting on the piston is converted into force driving the crankshaft rotation via the connecting rod, thereby driving the crankshaft to rotate. By installing a brushless synchronous AC generator coaxially with the prime mover's crankshaft, the rotation of the prime mover can drive the rotor of the generator. Using the principle of 'electromagnetic induction', the generator outputs induced electromotive force, and current is generated through the closed load circuit.

kurth electrical component principle

The working principle of a discharge tube is gas gap discharge i. When a certain voltage is applied between the two poles of the discharge tube, a non-uniform electric field is generated between the poles. Under the action of this electric field, the gas inside the tube begins to ionize. When the external voltage increases to the point where the field strength between the poles exceeds the insulation strength of the gas, the gap between the two poles breaks down and discharges, transforming from an original insulating state to a conductive state. After conduction, the voltage between the two poles of the discharge tube is maintained at the residual voltage level determined by the discharge arc channel. This residual voltage is generally very low, thereby protecting electronic equipment connected in parallel with the discharge tube from damage due to overvoltage.

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