Lumistar electrical components German Lumistar models Lumistar prices

Lumistar electrical components are sensors that convert the state of a measured object into measurable optical signals. The operating principle of fiber optic sensors is to guide the light beam from a light source via an optical fiber into a modulator, where it interacts with external measured parameters. This interaction changes the optical properties of the light, such as intensity, wavelength, frequency, phase, and polarization state, creating a modulated optical signal. This signal is then transmitted via optical fiber to a photodetector and demodulator to obtain the measured parameters. Throughout this process, the light beam is introduced via the optical fiber, passes through the modulator, and is then emitted. The optical fiber serves first to transmit the light beam and second to act as an optical modulator.

Lumistar electrical component structure

For rubber and plastic power cables used for power, lighting, and internal installation in electrical equipment, copper cores are preferred; for large cross-section conductors, compacted stranded cores are recommended. Conductors for fixed installations generally use Class 1 or Class 2 conductor structures. Insulation materials generally include natural styrene-butadiene rubber, polyvinyl chloride (PVC), polyethylene, and nitrile-PVC compounds. Heat-resistant power cables use PVC rated for 90°C. Sheath materials generally include PVC, cold-resistant PVC, ant-termite PVC, black polyethylene, and neoprene rubber. Black polyethylene and neoprene sheathed power cables are suitable for extreme cold resistance and outdoor overhead installation. In environments with external forces, corrosion, or moisture, rubber or plastic sheathed power cables can be used. Rubber and plastic flexible power cables use copper cores with a flexible structure composed of multiple single wires twisted together; flexible conductors generally use Class 5 or Class 6 conductor structures. Insulation materials generally include natural styrene-butadiene rubber, PVC, or soft polyethylene plastic. The cabling lay ratio is small. The outer protective layer uses cotton yarn braiding to prevent overheating and damage to the insulation layer. To facilitate use and simplify production processes, a three-core balanced structure is adopted, saving production labor hours and improving efficiency. For shielded insulated power cables, tinning of the conductor cores is permitted in certain applications; the surface coverage density of the shielding layer must comply with standards or meet user requirements; the shielding layer should be braided or wrapped with tinned copper wire; if an extruded sheath is applied over the shield, the shield may use soft round copper wire braiding or wrapping. To prevent internal interference between cores or pairs, individual phase shielding structures for each core (or pair) can be produced. General-purpose rubber-sheathed rubber power cables use copper flexible stranded cores with a flexible structure; paper wrapping is permitted on large cross-section surfaces to improve bending performance. Insulation uses natural styrene-butadiene rubber, which has good aging resistance. Outdoor products use neoprene rubber or a neoprene-based mixed rubber formula. Mining rubber power cables use copper cores with a flexible structure composed of multiple single wires twisted together: flexible conductors generally use Class 5 or Class 8 conductor structures. Insulation materials generally use rubber. The cabling lay ratio is small. Many products use metal braiding to equalize the electric field and improve the sensitivity display of the insulation condition. They have a thick outer sheath and are color-coded for underground mine use, allowing construction personnel to identify different voltage levels of the rubber power cables.

Lumistar electrical component characteristics

Sensitivity refers to the ratio of the change in output to the change in input of a sensor under steady-state operating conditions. It is the slope of the output-input characteristic curve. If the relationship between the sensor's output and input is linear, 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 yields higher measurement accuracy. However, the higher the sensitivity, the narrower the measurement range, and stability often deteriorates.

Lumistar electrical component functions

(1) often compares sensor functions to the human 5 major sensory organs: photosensitive sensors - vision, acoustic sensors - hearing, gas-sensitive sensors - smell, chemical sensors - taste, pressure-, temperature-, and fluid-sensitive sensors - touch. (2) Classification of sensitive elements: Physical type, based on physical effects such as force, heat, light, electricity, magnetism, and sound. Chemical type, based on the principles of chemical reactions. Biological type, based on molecular recognition functions such as enzymes, antibodies, and hormones. Typically, they are classified into ten major categories based on their basic sensing functions: thermal, optical, gas, force, magnetic, humidity, acoustic, radiation, color, and taste sensitive elements (some have also classified sensitive elements into 52 categories).

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