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Step 3
Step 3: Setup, Locate and Calibrate Wireless Sensors
Place the sensors at designated target locations. Figure 7 shows
a wireless temperature sensor. Please note the orientation of the
antenna in the inset (picture of sensor without the cap) to correctly
interpret Figure 8.
Figure 7: Wireless Temperature Sensor
Figure 8: Incorrect and Correct Setup
Step 3:
continued...
There are some important guidelines that should be followed
when locating the sensors:
The
●
minimum distance between two sensors must be 4
inches (~10 cm).
The
●
minimum distance between any given sensor and
the interrogation antenna must be 12 inches (~31 cm).
The
●
maximum interrogation distance between the
interrogation antenna and the sensor is heavily influenced
by the local RF environment. In general, that the distance
between the interrogator and the sensor should not
exceed 79 inches (~200 cm).
Ensure that the sensors are placed within the lobes
●
of the dipole radiation pattern. Figure 8 shows sensor
positions that will most likely not work and also shows
sensor positions that will work.
Ensure that the distance between Interrogator
●
Antenna and nearest parallel metal wall >4” (~10 cm).
