Title: Audio dosimeter

Abstract: An audio dosimeter for determining the exposure to noise as a function of both time and noise level. Input sound energy is appropriately weighted so as to account for the effect thereof on the human ear. The weighted sound signal is then utilized to gate pulses of selected discrete frequency levels to a counter, such that as the sound level increases, correspondingly higher frequency pulses are coupled to the counter. The counter stores the count therein until read out by an appropriate display device.

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Inventors: Steger, James O. (Muncie, IN, US)

Application Number: 522915
Filing Date: 1974-11-11
Publication_date: 1976-08-31
Assignee: Ball Corporation (Muncie, IN)
Primary Class(es): 73/648
Other Classes:
US Patent Ref:

3014550	Dec, 1961	Goles	73/558.
3696206	Oct, 1972	Ida et al.	73/558.
3747703	Jul, 1973	Knowd et al.	73/558.
3778552	Dec, 1973	Edinborgh	73/558.
3868857	Mar, 1975	Maddox	73/558.
3884086	May, 1975	Steger	73/558.

Other Refs:
Primary Examiner: Goldstein, Herbert
Assistant Examiner:
Attorney: Cushman, Darby & Cushman