Cecelia Qiu

Joined: 10 months ago | 405

What is a knock sensor on a car engine for?

The combustion of the engine is very complicated, so it needs to have a very precise design and control. A little control error or abnormality will cause abnormal combustion, and "...

Cecelia Qiu 15 April · 0 · 21

Some differences between capacitive and thermal MEMS sensors

Design engineers often need to choose among different kinds of accelerometers when developing heavy equipment. For example, in heavy machinery such as cranes, tractors, woodcutters...

Cecelia Qiu 06 April · 0 · 36

Application of Hall Sensor Ranging and Selection of Magnet

We want to use the Hall sensor to measure micro-distance, and it is inevitable to involve the problem of Hall sensing distance. Some may require a relatively short sensing distance...

Cecelia Qiu 17 March · 0 · 18

Thyristor selection skills

1. Choose the type of thyristor There are many types of thyristor, which should be selected reasonably according to the specific requirements of the application circuit. If it i...

Cecelia Qiu 03 March · 0 · 18

An introduction to temperature sensor

Temperature is a basic physical quantity, and all processes in nature are closely related to temperature. The temperature sensor is the earliest developed and most widely used type...

Cecelia Qiu 28 February · 0 · 17

What is A/D conversion and D/A conversion?

1. What is a/d, d/a conversion: With the rapid development and popularization of digital technology, especially information technology, in the fields of modern control, communicat...

Cecelia Qiu 25 February · 0 · 47

Class D audio amplifiers have advantages

Designers often choose Class-D audio amplifiers to drive speakers in a variety of medium-power applications such as televisions (TVs), Bluetooth® speakers, and notebook computers....

Cecelia Qiu 22 February · 0 · 33

How to choose a signal generator and adjust the sensitivity of the signal generator?

1. Application of signal generator in sensitivity The sensitivity of the radio and the walkie-talkie can be adjusted by the signal generator. The basic principle of adjustment is...

Cecelia Qiu 11 February · 0 · 29

What is a fiber optic adapter?

What is a fiber optic adapter? Fiber optic adapters (also known as flanges), also known as fiber optic connectors, are the centering and connecting components of fiber optic activ...

Cecelia Qiu 25 January · 0 · 24

An overview of electromagnetic relay

Selection of Electromagnetic Relays Understand the necessary conditions ① The power supply voltage of the control circuit, the maximum current that can be provided; ②The voltage...

Cecelia Qiu 21 January · 0 · 20

Precautions for relay application

1 coil voltage The voltage used by the coil should be selected according to the rated voltage in the design. If not, it can be selected with reference to the temperature rise curv...

Cecelia Qiu 17 January · 0 · 8

The principle and function of air pressure sensor

The air pressure sensor detects the absolute pressure of the intake manifold behind the throttle valve. It detects the change of the absolute pressure in the manifold according to...

Cecelia Qiu 12 January · 0 · 19

Precautions for using hydrogen thyratron

Hydrogen Thyratron is a hot cathode low pressure gas (hydrogen or deuterium) discharge device. It has the advantages of high working voltage, large pulse current, rapid and stable...

Cecelia Qiu 10 January · 0 · 45

How to choose a fixed resistor?

There are many types of fixed resistors, and the choice of which material and structure of the resistor should be based on the specific requirements of the application circuit. Ord...

Cecelia Qiu 07 January · 0 · 75 · 1

An Introdcution to the Voltage-Controlled Oscillator

Refers to an oscillator circuit (VCO) whose output frequency and input control voltage have a corresponding relationship. The frequency is an oscillator VCO whose frequency is a fu...

Cecelia Qiu 04 January · 0 · 48

What is a resistor? What should be paid attention to when selecting resistors?

Regarding resistors, especially thin-film chip resistors are very commonly used in various fields. For beginners, the selection of resistors is nothing more than choosing the size...

Cecelia Qiu 31 December 2021 · 0 · 40