The risk of workplace accidents exists in various areas such as production and transportation. We need to take appropriate measures to prevent, reduce or eliminate these risks. Here are some examples:...
As shown in the figure
I know that the left side is a RJ45 + 2 USB interface structure
The right side shows the structure of DB9+VGA connectors.
But if you want to search for them, what are the keywor...
[size=4] SMD capacitors, people who know this industry know that SMD capacitors are widely used. At the same time, as passive components, SMD capacitors are often used in power circuits to achieve byp...
ECG monitor lead fall-off detection circuit1. UM1 = U + (△ U1 + △ U2) / 2, UM2 = U - (△ U1 + △ U2) / 2, how are these two expressions derived?2. When the electrode and the skin are in good contact, UM...
The microwave automatic switch is controlled based on the Doppler effect of microwaves. It can monitor the movement of objects and convert the movement into electrical signals to control the light of ...