Inspection apparatus for sensor element, and method for inspecting electrical characteristics of sensor element

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8342002
APP PUB NO 20110174049A1
SERIAL NO

12987220

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An inspection apparatus including a cylindrical chamber having an opening part and a bottomed end part. The chamber includes an element insertion/extraction part, a tapered part, and a gas introduction part. The element insertion/extraction part is a tubular space continuous from the opening part. The tapered part is connected to the element insertion/extraction part, and is a space having a tapered shape in a cross-sectional view sectioned perpendicularly so that a lengthwise direction is larger toward the inner side. The gas introduction part is a tubular space continuously extending from the tapered part to a bottom portion. A sensor element is inserted into the chamber such that a front end thereof reaches the tapered part while a gap is formed between the sensor element and the chamber, and in this condition, an inspection gas is supplied to the chamber through a supply port provided in the gas introduction part.

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Patent Owner(s)

Patent OwnerAddress
NGK INSULATORS LTDNAGOYA-SHI AICHI-KEN 467-8530
NGK CERAMIC DEVICE CO LTD434-3 GOTANDA SHIMOZUE KOMAKI AICHI-PREFECTURE 485-8557

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shindo, Hiroyuki Kasugai, JP 86 515
Sugiura, Kiyotaka Kani, JP 9 46

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