kopp electrical components Germany kopp model kopp price

kopp electrical components refer to an electrical device that disconnects the circuit by melting the fusible element with the heat generated by itself when the current exceeds the specified value. A fuse is a current protection device made based on the principle that when the current exceeds the specified value for a period of time, the heat generated by itself melts the fusible element, thereby disconnecting the circuit. Fuses are widely used in high and low voltage distribution systems, control systems, and electrical equipment as short-circuit and overcurrent protectors, making them one of the most commonly used protective devices. A metal conductor is used as the fusible element connected in series in the circuit. When overload or short-circuit current passes through the fusible element, it melts due to self-heating, thereby disconnecting the circuit. The fuse has a simple structure and is easy to use, and is widely used in power systems, various electrical equipment, and household appliances as a protective device.

kopp electrical component principle

Electrodynamic loudspeakers, also known as moving-coil loudspeakers, are electroacoustic transducers applying the electrodynamic principle. They are the most frequently and widely used loudspeakers, primarily for three reasons: 1. Electrodynamic loudspeakers have a simple structure, are easy to manufacture, and do not require large space, resulting in low cost and widespread adoption. 2. These loudspeakers can achieve excellent performance, with uniform frequency response in the mid-frequency range. 3. These loudspeakers are continuously improved; decades of loudspeaker development history reflect continuous improvements in design, craftsmanship, and materials, as well as performance keeping pace with the times. Electrodynamic loudspeakers are mostly cone-shaped or dome-shaped. The structure of a cone loudspeaker can be divided into three parts: 1. The vibration system includes the diaphragm, voice coil, centering spider, and dust cap. 2. The magnetic circuit system includes the upper pole plate, pole piece, lower pole plate, and magnet. 10. The auxiliary system includes the basket, surround, terminal board, and phase plug. According to Faraday's law, when a current-carrying conductor passes through a magnetic field, it experiences an electromagnetic force. Its direction conforms to Fleming's left-hand rule, with the force perpendicular to both the current and the magnetic field directions. The magnitude of the force is proportional to the current, wire length, and magnetic flux density. When an alternating audio current is input to the voice coil, the voice coil experiences an alternating driving force, producing alternating motion that drives the paper cone to vibrate, repeatedly pushing air to generate sound.

kopp electrical component principle

Optical measurement and control systems manufactured based on different principles of luminous flux acting on photoelectric elements are diverse. According to the nature of the output of the photoelectric element (optical measurement and control system), they can be divided into two categories: analog photoelectric sensors and pulse (switching) photoelectric sensors. Analog photoelectric sensors convert the measured quantity into a continuously changing photocurrent, exhibiting a single-valued relationship with the measured quantity. Analog photoelectric sensors can be classified into three major types based on the method of measuring the target object: transmission (absorption) type, diffuse reflection type, and light-blocking (beam obstruction) type. The so-called transmission type means that the measured object is placed in the optical path, and the light energy emitted by a constant light source passes through the measured object; after partial absorption, the transmitted light is projected onto the photoelectric element. The so-called diffuse reflection type means that the light emitted by a constant light source is projected onto the measured object, and then reflected from the surface of the measured object onto the photoelectric element. The so-called light-blocking type means that when the luminous flux emitted by the light source is partially blocked by the measured object, the luminous flux projected onto the photoelectric element changes, with the degree of change related to the position of the measured object in the optical path. Photodiodes are the most common light sensors. The appearance of a photodiode is similar to that of a general diode. When there is no illumination, like a ordinary diode, its reverse current is very small, called the dark current of the photodiode. When illuminated, carriers are excited to generate electron-hole pairs, called photoelectric carriers. Under the action of an external electric field, the photoelectric carriers participate in conduction, forming a reverse current much larger than the dark current, which is called photocurrent. The magnitude of the photocurrent is proportional to the light intensity, so an electrical signal varying with light intensity can be obtained across the load resistor.

kopp electrical component characteristics

Sensitivity refers to the ratio of the change in output to the change in input under steady-state operating conditions of a sensor. It is the slope of the output-input characteristic curve. If there is a linear relationship between the sensor's output and input, then the sensitivity S is a constant. Otherwise, it will vary with changes in the input. The dimension of sensitivity is the ratio of the dimensions of the output and input quantities. When the dimensions of the sensor's output and input quantities are the same, sensitivity can be understood as the amplification factor. Increasing sensitivity can yield higher measurement accuracy. However, the higher the sensitivity, the narrower the measurement range, and often the poorer the stability.

Weidou Intelligent Technology specializes in selling German kopp connectors, kopp switches, kopp relays, kopp controllers, kopp plugs, kopp sensors, kopp resistors, kopp capacitors, kopp buses, kopp modules, kopp cables, kopp power supplies, kopp interfaces, kopp gateways, kopp circuit breakers, kopp original imports from Germany. We welcome inquiries and orders from users.