|Types of Wireless Sensors|
Transmitters use scientific sensors such as thermocouples, pressure transducers, flow meters, etc. to measure a specific property in a process, and then transmit the data via radio signals to a receiver.
Receivers receive and interpret the wireless data. The receiver 'reads' a radio signal and converts it into the desired output such as contact closure, analog output, or digital display; some receivers can even export the data to advanced software.
Controllers function similar to a receiver in the sense that they receive and analyze data from wireless transmitters. However, the wireless controllers are also able to manipulate a process based on the data being measured. For example, if a furnace becomes too hot, a controller can recognize the increased temperature and send a signal to turn off some heating elements.
Data Loggers form a special type of wireless measurement network because they give a new dimension of flexibility to the end user. Wireless data loggers can remotely monitor temperature anywhere and then transmit the data back to an engineer once the unit is brought to a receiver.
These miniature wireless sensors are useful for applications that involve a roaming element, such as food being shipped. By packaging a wireless data logger within a shipping container, a vendor or transporter can ensure and certify that products were refrigerated all the way to a distributor or grocery store.
Transceivers contain a transmitter and receiver in a single unit. The ability to rebroadcast signals makes wireless transceivers able to extend the range of your wireless measurement network.
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