Monitoring air quality with optical nanosensors

On 2019-07-25 11:20:06  in Sensor

Monitoring air quality with optical nanosensors

This article describes the monitoring air quality with optical nanosensors ...

A method of detecting gas-sensitive resistors by using pointer multimeter current shields.

On 2019-07-05 16:20:45  in Resistors

A method of detecting gas-sensitive resistors by using pointer multimeter current shields.

This article describes a method of detecting gas-sensitive resistors by using pointer multimeter current shields. ...

The method of detecting the good or bad of the ordinary potentiometer with indicator multimeter .

On 2019-07-01 17:59:58  in Resistors

The method of detecting the good or bad of the ordinary potentiometer with indicator multimeter .

This article describes the method of detecting the good or bad of the ordinary potentiometer with indicator multimeter . ...

The LED display does not work, and the cause of the fault is determined and eliminated according to the flashing green light of the sending card.

On 2019-06-13 16:14:11  in Generally electronic semiconductor

The LED display does not work, and the cause of the fault is determined and eliminated according to the flashing green light of the sending card.

The LED display does not work, and the cause of the fault is determined and eliminated according to the flashing green light of the sending card. ...

How to connect test lines when using DC / AC mode shields?

On 2019-04-20 13:38:41  in Technology

How to connect test lines when using DC / AC mode shields?

This article describes Method of properly connecting test lines when using DC / AC mode shields. ...

Oscilloscope basical principle

On 2019-04-09 11:33:42  in Knownlege

Oscilloscope basical principle

This article describes the oscilloscope basical principle ...

What's the difference between power supply and signals on the motherboard?

On 2019-03-07 11:19:11  in Knownlege

What's the difference between power supply and signals on the motherboard?

This article briefly introduces the difference between power supply and signals on the motherboard? ...

What are the methods for detecting transistors of a multimeter?

On 2019-02-22 13:55:39  in Knownlege

 What are the methods for detecting transistors of a multimeter?

This article describes some methods for detecting transistors of a multimeter ...

What are the difference of use of digital multimeter and pointer multimeter.?

On 2019-02-20 11:00:08  in Knownlege

What are the difference of  use of digital multimeter and pointer multimeter.?

This article describes the comparison of the use of digital multimeter and pointer multimeter. ...

How to detect a diode with using a digital multimeter?

On 2019-02-15 14:09:05  in Knownlege

How to detect a diode with using a digital multimeter?

This article briefly introduces how to detect a diode with using a digital multimeter ...

What are the characteristics of the smartphone?

On 2019-02-14 11:16:20  in Knownlege

 What are the characteristics of the smartphone?

This article briefly introduces the characteristics of the smartphone ...

How to reduce errors in detecting DC currents?

On 2019-02-13 11:44:47  in Technology

How to reduce errors in detecting DC currents?

This article describes the method of reducing errors in detecting DC currents. ...

What are the problems with internal heat soldering irons and how to repair them?

On 2019-01-28 17:41:29  in Technology

What are the problems with internal heat soldering irons and how to repair them?

This article describes the problems with internal heat soldering irons and how to repair them ...

What are the types and role of solder resist?

On 2019-01-28 13:43:17  in Knownlege

What are the types and role of solder resist?

This article describes the types and role of solder resist. ...

What should be pay attention when installing diodes and transistors on the board?

On 2019-01-18 17:42:43  in Generally electronic semiconductor

What should be pay attention when installing diodes and transistors on the board?

This article briefly introduces what should be pay attention when installing diodes and transistors on the board? ...

What should be pay attention when installing a resistor on circuit board?

On 2019-01-17 16:22:52  in Resistors

What should be pay attention when installing a resistor on circuit board?

This article describes what should be pay attention when installing a resistor on circuit board ...

Wht is a magneto diode?

On 2019-01-15 16:09:10  in Generally electronic semiconductor

Wht is a magneto diode?

This article briefy introduces the magneto diode ...

What are the problems in radio assembly?

On 2019-01-15 14:05:25  in Knownlege

What are the problems in radio assembly?

This article describes the problems in radio assembly ...

Spectral Analysis of Eu and Bi

On 2019-01-14 17:35:33  in Photoelectric

Spectral Analysis of Eu and Bi

This article describes the spectral Analysis of Eu and Bi ...

Crystal structure and particle size analysis of LaInO

On 2019-01-12 15:37:42  in Knownlege

Crystal structure and particle size analysis of LaInO

This article describes the crystal structure and particle size analysis of LaInO ...

Manufacturing process of printed circuit boards

On 2019-01-12 15:11:19  in Knownlege

Manufacturing process of printed circuit boards

This article briefly introduces the manufacturing process of printed circuit boards ...

What are the characteristics of polyester capacitor and mica capacitor?

On 2019-01-12 10:27:31  in Capacitors

What are the characteristics of polyester capacitor and mica capacitor?

This article describes the characteristics of polyester capacitor and mica capacitor ...

Effect of Eu doping concentration on luminescence properties of phosphors

On 2019-01-11 14:27:00  in Knownlege

Effect of Eu doping concentration on luminescence properties of phosphors

This article describes the effect of Eu doping concentration on luminescence properties of phosphors ...

How to detect the photosensitive resistor?

On 2019-01-09 11:00:22  in Resistors

How to detect the photosensitive resistor?

This article briefly introduces detection method of the photosensitive resistor ...

How to check and repair the clockwork timer?

On 2019-01-08 15:11:42  in Technology

How to check and repair the clockwork timer?

This article briefly introduces how to check and repair the clockwork timer ...

What is a four-way solenoid directional valve?

On 2019-01-05 13:53:56  in Knownlege

What is a four-way solenoid directional valve?

This article describes the role of the four-way solenoid directional valve ...

Audio transformer and high frequency transformer

On 2019-01-04 12:01:12  in Transformer

Audio transformer and high frequency transformer

This article briefly introduces the audio transformer and high frequency transformer ...

Headphone

On 2019-01-04 11:32:17  in Generally electronic component

Headphone

This article briefly introduces the headphone. ...

What should pay attention to in the application of the potentiometer?

On 2018-12-21 10:29:23  in Generally electronic component

What should pay attention to in the application of the potentiometer?

This article briefly introduces in the application of the potentiometer something should be paid attention. ...

What is a Schottky diode and how to detect it?

On 2018-12-18 14:24:16  in Generally electronic semiconductor

What is a Schottky diode and how to detect it?

This article briefly introduces what is a Schottky diode and how to detect it ...

What should be paid attention to in the application of fixed capacitors?

On 2018-12-15 10:55:38  in Capacitors

What should be paid attention to in the application of fixed capacitors?

This article discusses the application notes for fixed capacitors. ...

Process document

On 2018-12-13 14:22:11  in Knownlege

Process document

This article briefly introduces Pipeline production process documents. ...

What are the switches used in electrical appliances?

On 2018-12-13 11:54:57  in Knownlege

What are the switches used in electrical appliances?

This article describes the role of the switches ...

The process of tin welding

On 2018-12-11 13:27:08  in Technology

The process of tin welding

​ This article briefly introduces the process of tin welding ...

Multi-turn potentiometer and single-turn potentiometer

On 2018-12-10 11:01:32  in Knownlege

Multi-turn potentiometer and single-turn potentiometer

​ This article briefly introduces multi-turn potentiometer and single-turn potentiometer ...

Computer motherboard resistance, capacitance

On 2018-12-08 11:11:23  in Knownlege

Computer motherboard resistance, capacitance

This article writes about the different roles of capacitors and resistors ...

what is a modular power supply

On 2018-12-06 12:07:49  in Knownlege

what is a modular power supply

This article briefly introduces what is a modular power supply ...

How to measure the transformer is good or bad?

On 2018-12-06 12:03:17  in Technology

How to measure the transformer is good or bad?

This article briefly introduces some ways to measure the transformer is good or bad ...

Type of board

On 2018-12-06 11:56:33  in Knownlege

Type of board

This article writes about the different type of board ...

What is the role of the transformer?

On 2018-12-05 10:13:54  in Knownlege

What is the role of the transformer?

This article describes the role of the transformer ...