Micro-Hole Diameter Inspection Using Audible Sound

Yoshinori Nagasu; Noboru Nakayama; Makoto Otani; Kazunori Itoh; Keigo Oguchi; Kakumasa Eguchi

doi:10.4028/www.scientific.net/KEM.656-657.755

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 656-657Micro-Hole Diameter Inspection Using Audible Sound

Micro-Hole Diameter Inspection Using Audible Sound

Abstract:

This paper presents a method for inspecting micro-holes with diameters of less than 100 μm using audible sound. The inspection system measures the micro-hole diameter by comparing two sound signals. Fluid flow through micro-holes affects the performance of products such as CO gas sensor parts, microphone filters and fuel injection plates. Therefore, if the flow rate of fluid passing through micro-holes is accurately assessed by an inspection system, the performance of a product can be guaranteed.

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Periodical:

Key Engineering Materials (Volumes 656-657)

Pages:

755-760

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.656-657.755

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Online since:

July 2015

Authors:

Yoshinori Nagasu*, Noboru Nakayama, Makoto Otani, Kazunori Itoh, Keigo Oguchi, Kakumasa Eguchi

Keywords:

Audible Sound, Guarantee the Performance, Inspection System, Micro-Holes

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