Wireless sensor with multiple sensing options
US-2017160220-A1 · Jun 8, 2017 · US
Humidity sensor with temperature compensation
US9746438B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9746438-B2 |
| Application number | US-201414156252-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 15, 2014 |
| Priority date | Feb 6, 2013 |
| Publication date | Aug 29, 2017 |
| Grant date | Aug 29, 2017 |
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Abstract
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A gas sensing device that includes humidity compensation.
First claim
Opening claim text (preview).
I claim: 1. A humidity sensor comprising: (a) a humidity sensitive element within a housing that senses the humidity and provides a humidity estimate of said humidity to a microprocessor; (b) a sensing circuit that senses power provided to electronic components of said humidity sensor, including a microprocessor of said sensing circuit, from a power source; (c) an internal temperature sensor enclosed within said housing and provides an internal temperature signal to said microprocessor; (d) said microprocessor modifying said humidity estimate based upon (1) said internal temperature signal, (2) a thermal resistance of said humidity sensor, and (3) said power including said power to said microprocessor. 2. The humidity sensor of claim 1 wherein said humidity sensitive element said provides said humidity estimate of said humidity based upon a capacitive measurement. 3. The humidity sensor of claim 1 wherein said humidity sensitive element said provides said humidity estimate of said humidity based upon a resistive measurement. 4. The humidity sensor of claim 1 wherein said housing enclosing said internal temperature sensor also encloses said sensing circuit, and said microprocessor. 5. The humidity sensor of claim 1 wherein said microprocessor is free from modifying said humidity estimate based upon a temperature sensor that senses ambient air temperature external to said housing enclosing said humidity sensitive element. 6. The humidity sensor of claim 1 wherein said thermal resistance is a constant. 7. The humidity sensor of claim 1 wherein said microprocessor said modifies said humidity estimate based upon a voltage provided to said electronic components. 8. The humidity sensor of claim 7 wherein said microprocessor said modifies said humidity estimate based upon a power provided to said electronic components.
Assignees
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Classifications
for controlling the temperature (temperature control per se G05D23/00) · CPC title
for determining moisture content of the material · CPC title
- G01N27/225Primary
by using hygroscopic materials · CPC title
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Frequently asked questions
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- What does patent US9746438B2 cover?
- A gas sensing device that includes humidity compensation.
- Who is the assignee on this patent?
- Veris Ind Inc, Veris Industries Llc
- What technology area does this patent fall under?
- Primary CPC classification G01N27/225. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 29 2017 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).