Arrangement for mirror temperature measurement and/or thermal actuation of a mirror in a microlithographic projection exposure apparatus
US-9207541-B2 · Dec 8, 2015 · US
Device for testing a sensor of train undercarriage temperatures
US8944677B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8944677-B2 |
| Application number | US-201213605764-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 6, 2012 |
| Priority date | Oct 17, 2011 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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A test apparatus for testing an IR sensor of train undercarriage temperatures is disclosed. The IR sensor may be used to obtain infrared IR emission data by sensing a wheel or a wheel bearing of a rail vehicle. The test apparatus may comprise a heat emitter for supplying IR emissions at a reference temperature to the IR sensor. A support may support the heat emitter at a position spaced from the passage of the rail vehicle and in an orientation for directing the IR emissions at the IR sensor.
First claim
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What is claimed is: 1. A method of testing an IR sensor of a rail vehicle undercarriage component, the method comprising the steps of: providing a heat emitter for producing IR emissions at a reference temperature, the heat emitter comprising a heat member having a black surface coupled to a resistor; supporting the heat emitter on a support at a position spaced from the passage of the rail vehicle and in an orientation for directing the IR emissions at the IR sensor; activati…
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Frequently asked questions
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- What does patent US8944677B2 cover?
- A test apparatus for testing an IR sensor of train undercarriage temperatures is disclosed. The IR sensor may be used to obtain infrared IR emission data by sensing a wheel or a wheel bearing of a rail vehicle. The test apparatus may comprise a heat emitter for supplying IR emissions at a reference temperature to the IR sensor. A support may support the heat emitter at a position spaced from th…
- Who is the assignee on this patent?
- Agostini Alessandro, Ricci Andrea, Progress Rail Services Corp
- What technology area does this patent fall under?
- Primary CPC classification G01J5/02. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).