Invention Grant
- Patent Title: Precision apparatus using low thermal expansion component
- Patent Title (中): 精密仪器采用低热膨胀组件
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Application No.: US13013362Application Date: 2011-01-25
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Publication No.: US08490570B2Publication Date: 2013-07-23
- Inventor: Kenji Kuramoto
- Applicant: Kenji Kuramoto
- Applicant Address: JP Tokyo
- Assignee: Japan Aviation Electronics Industry, Limited
- Current Assignee: Japan Aviation Electronics Industry, Limited
- Current Assignee Address: JP Tokyo
- Agent David N. Lathrop
- Priority: JP2010-040053 20100225
- Main IPC: G01K11/12
- IPC: G01K11/12 ; G01K3/00 ; G01P15/13
Abstract:
A low temperature history indication plate 31 made of a low thermal expansion material used within an apparatus is provided on the outer surface of the apparatus. A surface of the low temperature history indication plate 31 is mirror polished. Simply by observing the low temperature history indication plate 31, it can be determined whether or not martensitic transformation has occurred.
Public/Granted literature
- US20110203511A1 Precision Apparatus Using Low Thermal Expansion Component Public/Granted day:2011-08-25
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