An Active Noise Control Stethoscope
Abstract
The objective of this effort is to develop an electronic stethoscope that enables emergency medical personnel to auscultate in the presence of high background noise levels. A stethoscope is being developed which incorporates digital active noise control (ANC) technology. This technology is used to remove noise detected by the stethoscope sensor and noise which would otherwise reach the physician's ear. The noise penetrating to the ear is treated differently according to whether the noise is random or periodic. Initial efforts will be directed at completing a prototype ANC stethoscope with periodic noise cancellation capability. During Phase I, the P.I. will develop an electronic stethoscope and provide background, level II drawings, and documentation of all other efforts related to the project. The project involves developing sensors, circuit boards, programming digital signal processors, extensive testing of a prototype in the laboratory and with medical personnel and an audiologist, cost analysis and attracting a manufacturer to produce and market the device. Stethoscope, Noise, Auscultation device, SBIR, RA II.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 24, 1993
- Accession Number
- ADB176684
Entities
People
- Thomas R. Harley