MTMERICITRANSFO electrical components Germany MTMERICITRANSFO model MTMERICITRANSFO price

MTMERICITRANSFO electrical components refer to electronic components that generate resonant frequencies. Common types are divided into quartz crystal resonators and ceramic resonators. They function to generate frequencies, featuring stability and good anti-interference performance, and are widely used in various electronic products. The frequency accuracy of quartz crystal resonators is higher than that of ceramic resonators, but the cost is also higher. Resonators mainly serve the role of frequency control; all electronic products involving frequency transmission and reception require resonators. Resonator types can be divided into through-hole and surface-mount types based on their shape.

MTMERICITRANSFO electrical component principle

Potentiometric displacement sensors convert mechanical displacement into resistance or voltage output that has a linear or arbitrary functional relationship with the displacement via potentiometer elements. Standard linear and rotary potentiometers can be used as linear displacement and angular displacement sensors, respectively. However, potentiometers designed for displacement measurement require a definite relationship between displacement change and resistance change. The movable wiper of the potentiometric displacement sensor is connected to the measured object. The object's displacement causes a change in resistance at the moving end of the potentiometer. The magnitude of the resistance change reflects the magnitude of the displacement, while an increase or decrease in resistance indicates the direction of displacement. Typically, a supply voltage is applied across the potentiometer to convert the resistance change into a voltage output. In wirewound potentiometers, the resistance changes in steps corresponding to the turn-to-turn resistance as the wiper moves, resulting in a stepped output characteristic. If such a displacement sensor is used as a displacement feedback element in a servo system, excessive step voltages may cause system oscillation. Therefore, the resistance per turn should be minimized during potentiometer manufacturing. Another major disadvantage of potentiometric sensors is susceptibility to wear. Their advantages include simple structure, large output signal, ease of use, and low cost.

MTMERICITRANSFO electrical component principle

The basic working principle of fiber optic sensors is to guide light from a source through an optical fiber into a modulator. After interacting with the light entering the modulation region, the parameter to be measured causes changes in the optical properties of the light (such as intensity, wavelength, frequency, phase, polarization state, etc.), creating what is known as modulated signal light. Measurement is then completed by utilizing the influence of the measured quantity on the light's transmission characteristics. There are two measurement principles for fiber optic sensors: (1) Physical property-type fiber optic sensor principle: Physical property-type fiber optic sensors utilize the sensitivity of the optical fiber to environmental changes to convert input physical quantities into modulated optical signals. Their working principle is based on the optical modulation effect of the fiber, meaning that when external environmental factors such as temperature, pressure, electric fields, or magnetic fields change, the light transmission characteristics of the fiber, such as phase and light intensity, change. Therefore, by measuring the changes in light phase and intensity through the fiber, changes in the measured physical quantity can be determined. These sensors are also known as sensitive element-type or functional fiber optic sensors. The point source beam of a laser is expanded into parallel waves and split by a beam splitter into two paths: one reference path and one measurement path. External parameters (temperature, pressure, vibration, etc.) cause changes in fiber length and optical phase, generating different numbers of interference fringes. Counting the lateral movement of these fringes allows for the measurement of temperature or pressure. (12) Structural-type fiber optic sensor principle: Structural-type fiber optic sensors are measurement systems composed of photodetection elements (sensitive elements), optical fiber transmission circuits, and measurement circuits. Here, the optical fiber serves only as a medium for light propagation, so they are also referred to as light-transmitting or non-functional fiber optic sensors.

MTMERICITRANSFO electrical component classification

Based on the working power supply, motors can be divided into DC motors and AC motors. AC motors are further divided into single-phase and three-phase motors. Based on structure and working principle, motors can be classified into DC motors, asynchronous motors, and synchronous motors. Synchronous motors can be further divided into permanent magnet synchronous motors, reluctance synchronous motors, and hysteresis synchronous motors. Asynchronous motors can be divided into induction motors and AC commutator motors. Induction motors include three-phase asynchronous motors, single-phase asynchronous motors, and shaded-pole asynchronous motors. AC commutator motors include single-phase series-wound motors, universal motors, and repulsion motors. Based on starting and running methods, motors can be classified into capacitor-start single-phase asynchronous motors, capacitor-run single-phase asynchronous motors, capacitor-start-run single-phase asynchronous motors, and split-phase single-phase asynchronous motors. Based on application, motors are divided into drive motors and control motors. Drive motors include those for power tools, home appliances, and other general small mechanical equipment. Control motors include stepper motors and servo motors. Based on rotor structure, motors are classified into squirrel-cage induction motors and wound-rotor induction motors. Based on operating speed, motors are classified into high-speed, low-speed, constant-speed, and variable-speed motors.

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