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Comax electrical components are devices for detachable (active) connection between optical fibers. They precisely align the two end faces of the optical fibers to maximize the coupling of light energy output from the transmitting fiber into the receiving fiber, and minimize the impact on the system caused by their insertion into the optical link. This is the basic requirement for fiber optic connectors. To a certain extent, fiber optic connectors affect the reliability and various performance metrics of optical transmission systems.

Comax electrical components application

SMD inductors are electromagnetic induction components wound with insulated wire. They belong to commonly used inductor components. Function of SMD inductors: Passing DC and blocking AC is a simple description; they isolate and filter AC signals, or form resonant circuits with capacitors, resistors, etc. Function of tuning and frequency selection inductors: An inductor coil connected in parallel with a capacitor can form an LC tuning circuit. Any current in the circuit passing through an SMD inductor generates a magnetic field, and the magnetic flux of this field acts on the circuit. When the current passing through the SMD inductor changes, the DC voltage potential generated in the SMD inductor will oppose the change in current. When the current through the inductor coil increases, the self-induced electromotive force generated by the inductor coil is opposite to the direction of the current, opposing the increase in current, while converting part of the electrical energy into magnetic field energy stored in the inductor; when the current through the inductor coil decreases, the self-induced electromotive force is in the same direction as the current, opposing the decrease in current, while releasing the stored energy to compensate for the decrease in current. Therefore, after inductive filtering, not only are the ripples of load current and voltage reduced and the waveform smoothed, but the conduction angle of the rectifier diode also increases. Inductor function 1: Color-ring inductors have a current-blocking effect: The copper core in the color-ring inductor coil always opposes changes in the current in the coil. Color-ring inductors impede the AC current used in the circuit; the magnitude of this impedance is called inductive reactance XL, measured in ohms. Its relationship with inductance L and AC frequency f is XL=2πfL. Color-ring inductors can be mainly divided into high-frequency choking coils and low-frequency choking coils. Inductor function 2: Color-ring inductors have tuning and frequency selection functions: A color-ring inductor connected in parallel with an electrolytic capacitor can form an LC tuning circuit. At resonance, the inductive reactance and capacitive reactance of the circuit are equal in magnitude but opposite in direction, meaning the natural oscillation frequency f0 of the circuit equals the frequency f of the non-AC signal, so the inductive reactance and capacitive reactance of the loop are also equal. The usage frequency of color-ring inductors is generally not very high, and color-ring inductors used in circuits are generally quite stable. Inductor function 5: The main uses of color-ring inductors include signal screening, noise filtering, current stabilization, and suppression of electromagnetic wave interference. The basic function of color-ring inductors is charging and discharging, but many circuit phenomena derived from this basic charging and discharging function give color-ring inductors various different applications. Today, color-ring inductors are widely used by customers, and the role played by these small inductors should not be underestimated.

Comax electrical components 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 is 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 is used as the fitted straight line, known as the least squares fitted straight line.

Comax electrical components principle

Photoelectric sensors generally consist of 2 parts: processing channels and processing elements. Their basic principle is based on the photoelectric effect, converting changes in the measured quantity into changes in optical signals, which are then further converted into electrical signals by means of photoelectric components. The photoelectric effect refers to the phenomenon where illuminating an object can be viewed as a stream of photons with specific energy bombarding the object; at this time, the photon energy is transferred to electrons, and the entire energy of one photon is absorbed by one electron at once. After gaining the energy transferred by the photon, the state of the electron changes, thereby causing a corresponding electrical effect in the illuminated object. The photoelectric effect is usually divided into 6 categories: (1) the phenomenon where electrons overflow from the object's surface under the action of light is called the external photoelectric effect, such as in phototubes and photomultiplier tubes; (2) the phenomenon where the resistivity of the object changes under the action of light is called the internal photoelectric effect, such as in photoresistors and phototransistors; (3) the phenomenon where the object generates an electromotive force in a certain direction under the action of light is called the photovoltaic effect, such as in photocells. Photoelectric detection methods offer advantages such as high precision, fast response, and non-contact operation, and they can measure many parameters. With simple sensor structures and flexible forms, photoelectric sensors are widely used in detection and control. Photoelectric sensors are key components for achieving photoelectric conversion in various photoelectric detection systems; they are devices that convert optical signals (visible and ultraviolet laser light) into electrical signals. Photoelectric sensors use photoelectric devices as conversion elements. They can be used to detect non-electrical physical quantities that directly cause changes in light quantity, such as light intensity, illuminance, radiation temperature measurement, and gas composition analysis; they can also be used to detect other non-electrical quantities that can be converted into changes in light quantity, such as part diameter, surface roughness, strain, displacement, vibration, velocity, acceleration, as well as object shape and working status recognition. Photoelectric sensors feature non-contact operation, fast response, and reliable performance, so they are widely applied in industrial automation equipment and robots. The continuous emergence of new photoelectric devices, especially the birth of CCD image sensors, has opened a new chapter for the further application of photoelectric sensors.

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