Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 Investigating a compact phantom and setup for testing body sound transducers.

Literature DB >> 21496795

Investigating a compact phantom and setup for testing body sound transducers.

Hansen A Mansy¹, Joshua Grahe, Thomas J Royston, Richard H Sandler.

Abstract

Contact transducers are a key element in experiments involving body sounds. The characteristics of these devices are often not known with accuracy. There are no standardized calibration setups or procedures for testing these sensors. This study investigated the characteristics of a new computer-controlled sound source phantom for testing sensors. Results suggested that sensors with different sizes require special phantom requirements. The effectiveness of certain approaches on increasing the spatial and spectral uniformity of the phantom surface signal was studied. Non-uniformities > 20 dB were removable, which can be particularly helpful in comparing the characteristics of different size sensors more accurately.

Entities: Chemical Disease Gene Species

Mesh：

Year: 2011 PMID： 21496795 PMCID： PMC3104089 DOI： 10.1016/j.compbiomed.2011.03.014

Source DB: PubMed Journal: Comput Biol Med ISSN： 0010-4825 Impact factor: 4.589

16 in total

Investigating a compact phantom and setup for testing body sound transducers.

1. Detection and analysis of gastrointestinal sounds in normal and small bowel obstructed rats.

2. Excitation and propagation of surface waves on a viscoelastic half-space with application to medical diagnosis.

3. Modeling sound transmission through the pulmonary system and chest with application to diagnosis of a collapsed lung.

4. Surface response of a viscoelastic medium to subsurface acoustic sources with application to medical diagnosis.

5. The effect of background noise on cardiac ausculation.

6. Acoustic radiation from a fluid-filled, subsurface vascular tube with internal turbulent flow due to a constriction.

7. Comparison of lung sound transducers using a bioacoustic transducer testing system.

Review 8. Respiratory sounds. Advances beyond the stethoscope.

9. Measurement of respiratory acoustic signals. Effect of microphone air cavity width, shape, and venting.

10. Measurement of respiratory acoustic signals. Effect of microphone air cavity depth.

1. Electronic Stethoscope Filtering Mimics the Perceived Sound Characteristics of Acoustic Stethoscope.