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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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en:hw:05-sensors:analog [2020/11/20 12:44] jan_kozak |
en:hw:05-sensors:analog [2021/08/10 06:53] (current) avsetula |
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| ==%hide Analog == | ==%hide Analog == | ||
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| ====== Analog sensors ====== | ====== Analog sensors ====== | ||
| Generally speaking, analog sensors utilize changes of **voltage**, **current** or **resistance** on output terminals. The sensors can be divided into two groups: | Generally speaking, analog sensors utilize changes of **voltage**, **current** or **resistance** on output terminals. The sensors can be divided into two groups: | ||
| - | * __Active__ -> the output signal towards the GND is either voltage or current (most active sensors are powered by an external power source galvanically isolated from the PLC) | + | * __Active__ -> the output signal towards the GND is either voltage or current (most active sensors are powered by an external power source galvanically isolated from the unit) |
| * __Passive__ -> the resistance between the output terminals changes depending on the measured parameter. | * __Passive__ -> the resistance between the output terminals changes depending on the measured parameter. | ||
| <WRAP center round box> | <WRAP center round box> | ||
| - | On the Unipi e-shop you can find **reliable passive** analog sensors suitable for use in heating, air conditioning, industrial environment etc. These sensors are also a good choice for projects requiring the most precise and reliable sensors available. | + | On the Unipi e-shop, you can find **reliable passive** analog sensors suitable for use in heating, air conditioning, industrial environment etc. These sensors are also a good choice for projects requiring the most precise and reliable sensors available. |
| {{ :files:img_breakline_2.png?nolink |}} | {{ :files:img_breakline_2.png?nolink |}} | ||
