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Q. Please explain
the difference between diffuse and through-scan.
Diffuse mode is the standard mode of operation.
In this mode, objects travelling in any direction into the operating
range of the sound cone will cause the sensor to switch output states.
The Thru-scan mode uses a "reflector" located in the preset
operating range. This can be any good reflective background, such
as a wall. The operating range is adjusted for the reflector. The
pulses are bounced off the reflector and the echo pulses are returned
to the sensor. When a target blocks the echo pulses, the output is
activated.
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