ELPOR electrical components Germany ELPOR model ELPOR price

ELPOR electrical components are energy conversion devices that convert sound signals into electrical signals. Categories include moving-coil, condenser, electret, and the recently emerging silicon microphones, as well as liquid microphones and laser microphones. Most microphones are electret condenser microphones, which operate using a polymer diaphragm with permanently isolated charge.

ELPOR electrical component classification

1. Classification by relay external dimensions: ① miniature relay, ② ultra-miniature relay, ③ small miniature relay. 2. Classification by relay load: ① micropower relay, ② low-power relay, ③ medium-power relay, ④ high-power relay. 13. Classification by relay protection characteristics: ① Sealed relay: uses welding or other methods to seal contacts and coils inside a cover, isolating them from the surrounding medium, resulting in a low leakage rate. ② Enclosed relay: uses a housing to seal (non-sealed) and protect contacts and coils. ③ Open relay: does not use a protective cover for contacts and coils. Among the above relays, electromagnetic relays and reed relays are the most commonly used in electronic fabrication.

ELPOR electrical component characteristics

Under normal circumstances, the actual static characteristic output of a sensor is a curve rather than a straight line. In practical work, to enable instruments to have uniformly scaled readings, a fitted straight line is often used to approximately represent the actual characteristic curve; linearity (non-linear error) is a performance indicator of this degree of approximation. There are various methods for selecting the fitted straight line. For example, the theoretical straight line connecting the zero input and full-scale output points can be used as the fitted straight line; or the theoretical straight line that minimizes the sum of squared deviations from each point on the characteristic curve can be used as the fitted straight line, known as the least squares fitted straight line.

ELPOR electrical component principle

The basic principle of a multimeter is to use a sensitive magnetoelectric DC ammeter (microammeter) as the meter head. When a small current passes through the meter head, there will be a current indication. However, the meter head cannot handle large currents, so resistors must be connected in parallel and series with the meter head for current shunting or voltage dropping, thereby measuring current, voltage, and resistance in the circuit. The measurement process of a digital multimeter involves converting the measured quantity into a DC voltage signal via a conversion circuit, then converting the analog voltage into a digital quantity via an analog-to-digital (A/D) converter, counting via an electronic counter, and finally displaying the measurement result directly as numbers on the display screen. The functions of measuring voltage, current, and resistance with a multimeter are achieved through the conversion circuit part, while current and resistance measurements are based on voltage measurement; that is, a digital multimeter is an extension of a digital DC voltmeter. The digital DC voltmeter's A/D converter transforms the continuously changing analog voltage over time into a digital quantity, which is then counted by an electronic counter to obtain the measurement result, and the result is displayed by a decoding display circuit. The logic control circuit coordinates the operation of the circuits, completing the entire measurement process sequentially under the action of a clock.

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