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How easy is it really to damage electronic components with ESD?

2019-03-06

The pulse energy of electrostatic discharge(ESD) will lead to the local heating, which also damage the electron tube.

Why must air temperature be measured in shade?

2019-03-06

Because the thermometer which is used to measure the air temperature that is a mercury thermometer.

Why are electrical cables black?

2019-03-05

In fact, the electrical cable can be any colors; As for those electrical cable why they are black, which lies in its dirt-proof and uvioresistant.

Why do some devices use reversed polarity DC connections?

2019-03-05

Yeah, some devices have protected diodes, which can use the reversed polarity DC connections.

What is the difference between a micro controller and PCB?

2019-03-05

Micorcontroller: A system control chip; PCB: The carrier of the microcontroller (to realize its function); Besides, all the connections of the components will be shown on the PCB.

How can an LC circuit maintain its voltage?

2019-03-04

With the generation of the feedback circuit in the diode amplification circuit, and a steady flow of the same frequency pulse, which is the essential reason why an LC circuit manitain its voltage.

Can DSP chips be described as glorified microcontrollers?

2019-03-04

Nope. DSP chips doesn’t belong to microcontrollers at all.

Why is it difficult to make non-rectangular displays?

2019-03-04

Three reasons why it’s difficult to make non-rectangular displays:

Can an ultrasonic sensor detect sound (Arduino)?

2019-03-02

I’m afraid not. Actually, ultrasonic sensor is mainly used to detect the distance instead of sound.

What does "Lo" in blood glucose monitoring system mean?

2019-03-02

In the blood glucose monitoring system, “Lo” means the blood glucose is too low to be tested, whose possible reason may be insufficient blood sampling; However, the final presice result should be combined with the clinical diagnosis.

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