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1.0 Device description
The CLAVIS Belt Frequency Meter is a two component system consisting of
a hand-held meter attached to an sensor via an electronic cable. Two differing
types of sensor are used with the CLAVIS meter. The fi rst is the acoutic sensor
which is available in a range of sizes and profi les. The second is an optical sen-
sor which uses an infrared beam to detect the vibration of a belt strand and
sends a signal to the meter. The detected belt vibration signal is compared with
the vibration of a quartz crystal by the the meter which then computes the
natural frequency of the belt. The result is shown in the display window as hertz
(oscillations per second). The internal programming of the meter is also able to
report the belt tension in units of force (either newton or pounds-force)
provided the operator has entered the belt mass and span length using the
manually operated key pad.
LED aiming
beam
Optical sensor
see section 3.3
Plug in
sensor cable
Display window see
section 3.2
Keypad
see
section
3.1
Acoustic sensor
see section 3.4
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