Ceceliaanne's articles Common faults of eight major sensors in automobiles Although the car is now a very common means of transportation, how much do you know about it? The internal structure of the car is complicated and difficult to understand, and everyone may not understand this point, after all, they are all professional parts. There will be eight sensors in the car, one of which […] April 15, 2022April 15, 2022 Saving Bookmark this article Bookmarked In-depth analysis of the application scenarios of vibration sensors The vibration sensor is a widely used alarm detection sensor. It senses the parameters of mechanical motion vibration (such as vibration speed, frequency, acceleration, etc.) through the internal piezoelectric ceramic sheet and spring weight structure and converts it into a usable output signal, and then Amplified by LM358 and other operational amplifiers and output control […] April 9, 2022April 9, 2022 Saving Bookmark this article Bookmarked Selection principle of rectifier diode Rectifier diodes are generally planar silicon diodes, which are used in various power rectifier circuits. When choosing a rectifier diode, the parameters such as its maximum rectifier current, maximum reverse working current, cut-off frequency, and reverse recovery time should be considered. The rectifier diodes used in ordinary series regulated power supply circuits do not have […] March 18, 2022March 18, 2022 Saving Bookmark this article Bookmarked LC circuit start-up conditions and debugging LC circuit refers to an oscillating circuit composed of a frequency selection network with an inductor L and a capacitor C, which is used to generate a high-frequency sine wave signal. Common LC sine wave oscillating circuits include a transformer feedback LC circuit and an inductive three-point LC circuit. And capacitive three-point LC oscillator circuit. […] March 10, 2022March 10, 2022 Saving Bookmark this article Bookmarked The structure, characteristics and function of coolant temperature sensor (1) Coolant temperature sensor structure The coolant temperature sensor is a negative temperature coefficient resistance meter NTC, and the interior is composed of a semiconductor thermistor, which has a negative temperature coefficient NTC. When the temperature of the engine coolant gradually increases, the resistance of the thermistor will gradually decrease, and on the contrary, it […] February 12, 2022February 12, 2022 Saving Bookmark this article Bookmarked The role of the voltage controlled oscillator Refers to the oscillator circuit (VCO) whose output frequency has a corresponding relationship with the input control voltage. The frequency of the oscillator VCO is a function of the input signal voltage. The working state of the oscillator or the component parameters of the oscillation circuit is controlled by the input control voltage, which can […] January 26, 2022January 26, 2022 Saving Bookmark this article Bookmarked An Introduction to Power Relay The principle of power relay A power relay is a device that can generate jumps in one or more electrical output circuits when the input quantity (or excitation quantity) meets certain specified conditions. It can be used in the neutral point directly grounded system as a directional element for zero-sequence current protection. The working […] January 17, 2022January 17, 2022 Saving Bookmark this article Bookmarked The role of transistor switches The role of transistor switches (1) Control high powerToday's power transistors can control hundreds of kilowatts of power. There are many advantages to using power transistors as switches, mainly;(1) It is easy to turn off and requires less auxiliary components,(2) The switch is fast and can work at a very high frequency,(3) Available devices with […] January 10, 2022January 10, 2022 Saving Bookmark this article Bookmarked Detection methods of fixed capacitors and variable capacitors A fixed capacitor is a capacitor with a fixed capacitance. A variable capacitor is a capacitor whose capacitance can be adjusted within a certain range. When the relative effective area between the pole pieces or the distance between the pieces changes, its capacitance changes accordingly. Variable capacitors are often used as tuning capacitors in […] January 7, 2022January 7, 2022 Saving Bookmark this article Bookmarked Selection skills of various resistors 1. Selection of fixed resistorsThere are many types of fixed resistors. Which material and structure to choose depends on the specific requirements of the application circuit.High-frequency circuits should use non-wirewound resistors with small distributed inductance and distributed capacitance, such as carbon film resistors, metal resistors, and metal oxide film resistors.Low-noise resistors should be used for […] December 31, 2021December 31, 2021 Saving Bookmark this article Bookmarked All the sensors in your phone-a simple overview Mobile phones or smart phones are the product of extreme engineering. Looking back decades ago, you would not have thought that the mobile phone industry would undergo such revolutionary changes as it is now. Modern smartphones are full of cool features, which are accomplished through various sensors. The sensor provides an interface through which the […] December 29, 2021December 29, 2021 Saving Bookmark this article Bookmarked All the sensors in your phone-a simple overview Mobile phones or smart phones are the product of extreme engineering. Looking back decades ago, you would not have thought that the mobile phone industry would undergo such revolutionary changes as it is now. Modern smartphones are full of cool features, which are accomplished through various sensors. The sensor provides an interface through which […] December 29, 2021December 29, 2021 Saving Bookmark this article Bookmarked All the sensors in your phone-a simple overview Mobile phones or smart phones are the product of extreme engineering. Looking back decades ago, you would not have thought that the mobile phone industry would undergo such revolutionary changes as it is now. Modern smartphones are full of cool features, which are accomplished through various sensors. The sensor provides an interface through which the […] December 29, 2021December 29, 2021 Saving Bookmark this article Bookmarked
Common faults of eight major sensors in automobiles Although the car is now a very common means of transportation, how much do you know about it? The internal structure of the car is complicated and difficult to understand, and everyone may not understand this point, after all, they are all professional parts. There will be eight sensors in the car, one of which […] April 15, 2022April 15, 2022 Saving Bookmark this article Bookmarked
In-depth analysis of the application scenarios of vibration sensors The vibration sensor is a widely used alarm detection sensor. It senses the parameters of mechanical motion vibration (such as vibration speed, frequency, acceleration, etc.) through the internal piezoelectric ceramic sheet and spring weight structure and converts it into a usable output signal, and then Amplified by LM358 and other operational amplifiers and output control […] April 9, 2022April 9, 2022 Saving Bookmark this article Bookmarked
Selection principle of rectifier diode Rectifier diodes are generally planar silicon diodes, which are used in various power rectifier circuits. When choosing a rectifier diode, the parameters such as its maximum rectifier current, maximum reverse working current, cut-off frequency, and reverse recovery time should be considered. The rectifier diodes used in ordinary series regulated power supply circuits do not have […] March 18, 2022March 18, 2022 Saving Bookmark this article Bookmarked
LC circuit start-up conditions and debugging LC circuit refers to an oscillating circuit composed of a frequency selection network with an inductor L and a capacitor C, which is used to generate a high-frequency sine wave signal. Common LC sine wave oscillating circuits include a transformer feedback LC circuit and an inductive three-point LC circuit. And capacitive three-point LC oscillator circuit. […] March 10, 2022March 10, 2022 Saving Bookmark this article Bookmarked
The structure, characteristics and function of coolant temperature sensor (1) Coolant temperature sensor structure The coolant temperature sensor is a negative temperature coefficient resistance meter NTC, and the interior is composed of a semiconductor thermistor, which has a negative temperature coefficient NTC. When the temperature of the engine coolant gradually increases, the resistance of the thermistor will gradually decrease, and on the contrary, it […] February 12, 2022February 12, 2022 Saving Bookmark this article Bookmarked
The role of the voltage controlled oscillator Refers to the oscillator circuit (VCO) whose output frequency has a corresponding relationship with the input control voltage. The frequency of the oscillator VCO is a function of the input signal voltage. The working state of the oscillator or the component parameters of the oscillation circuit is controlled by the input control voltage, which can […] January 26, 2022January 26, 2022 Saving Bookmark this article Bookmarked
An Introduction to Power Relay The principle of power relay A power relay is a device that can generate jumps in one or more electrical output circuits when the input quantity (or excitation quantity) meets certain specified conditions. It can be used in the neutral point directly grounded system as a directional element for zero-sequence current protection. The working […] January 17, 2022January 17, 2022 Saving Bookmark this article Bookmarked
The role of transistor switches The role of transistor switches (1) Control high powerToday's power transistors can control hundreds of kilowatts of power. There are many advantages to using power transistors as switches, mainly;(1) It is easy to turn off and requires less auxiliary components,(2) The switch is fast and can work at a very high frequency,(3) Available devices with […] January 10, 2022January 10, 2022 Saving Bookmark this article Bookmarked
Detection methods of fixed capacitors and variable capacitors A fixed capacitor is a capacitor with a fixed capacitance. A variable capacitor is a capacitor whose capacitance can be adjusted within a certain range. When the relative effective area between the pole pieces or the distance between the pieces changes, its capacitance changes accordingly. Variable capacitors are often used as tuning capacitors in […] January 7, 2022January 7, 2022 Saving Bookmark this article Bookmarked
Selection skills of various resistors 1. Selection of fixed resistorsThere are many types of fixed resistors. Which material and structure to choose depends on the specific requirements of the application circuit.High-frequency circuits should use non-wirewound resistors with small distributed inductance and distributed capacitance, such as carbon film resistors, metal resistors, and metal oxide film resistors.Low-noise resistors should be used for […] December 31, 2021December 31, 2021 Saving Bookmark this article Bookmarked
All the sensors in your phone-a simple overview Mobile phones or smart phones are the product of extreme engineering. Looking back decades ago, you would not have thought that the mobile phone industry would undergo such revolutionary changes as it is now. Modern smartphones are full of cool features, which are accomplished through various sensors. The sensor provides an interface through which the […] December 29, 2021December 29, 2021 Saving Bookmark this article Bookmarked
All the sensors in your phone-a simple overview Mobile phones or smart phones are the product of extreme engineering. Looking back decades ago, you would not have thought that the mobile phone industry would undergo such revolutionary changes as it is now. Modern smartphones are full of cool features, which are accomplished through various sensors. The sensor provides an interface through which […] December 29, 2021December 29, 2021 Saving Bookmark this article Bookmarked
All the sensors in your phone-a simple overview Mobile phones or smart phones are the product of extreme engineering. Looking back decades ago, you would not have thought that the mobile phone industry would undergo such revolutionary changes as it is now. Modern smartphones are full of cool features, which are accomplished through various sensors. The sensor provides an interface through which the […] December 29, 2021December 29, 2021 Saving Bookmark this article Bookmarked
