The 1987 Minical Sound-Level
Calibrator is designed to allow quick, accurate field checks of
acoustic instrument sensitivity. It produces a single-frequency
output of 1000 Hz at sound-pressure levels of either 94 or 114
dB; it features a high-impact-resistant case and a special package
design that makes it resistant to moisture, dust and mechanical
shock.
The 1987 Minical incorporates the same design features for accuracy
and stability as those noted for the 1986 Omnical. It also couples
to the same variety of microphone sizes as those listed for the
1986.
The 1987 is ideal for quick, daily calibration checks of sound-level
meters and other acoustic instruments where sensitivity should
be ascertained before and after measurements. |
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