A sound signal emitter comprising an electrically oscillated diaphragm. It emits a signal similar in power and tone to that of a REED HORN.
Related Terms |
ASME SECTION I
Power Boilers.
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ACOUSTIC
A term pertaining to sound, or the science of sound.
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HALF-POWER POINTS
Power ratios used to define the angular width of a radar beam. One convention defines beam width as the angular width between points at which the field strength is 71 percent of its maximum value. Expressed in terms of power ratio, this convention defines beam width as the angular width between half-power points. A second convention defines beam width as the angular width between points at which the field strength is 50 percent of its maximum value. Expressed in terms of power ratio, the latter convention defines beam width as the angular width between quarter- power points.
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HARMONIC
1. A sinusoidal quantity having a frequency that is an integral multiple of the frequency of a periodic quantity to which it is related. 2. A signal having a frequency which is an integral multiple of the fundamental frequency.
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AMBIENT NOISE
The normal sound in a room or other location.
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AIRBORNE SOUND
Sound which reaches the point of interest by radiation through the air.
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INTENSIFIER
A device which converts low pressure fluid power into higher pressure fluid power.
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ANSI-B.31.1
Power Piping.
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ASME SECTION XI
Rules for in-service inspection of Nuclear Power Plant components.
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ASME SECTION III
Nuclear Power Plant Components.
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