Antenna of an electromagnetic probe for investigating geological formations
US-9217809-B2 · Dec 22, 2015 · US
Maximizing resolution of resistance sensing
US2016334448A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016334448-A1 |
| Application number | US-201615224138-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 29, 2016 |
| Priority date | Sep 30, 2013 |
| Publication date | Nov 17, 2016 |
| Grant date | — |
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- Title
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Abstract
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An approach for maximizing the resolution of a resistance sensor with a variable current source.
First claim
Opening claim text (preview).
What is claimed is: 1 . An apparatus that increases resolution of resistance sensing, comprising: a variable current source that produces a variable current in response to an analog current value; a variable resistance device that generates a voltage associated with the variable current, where the variable resistance has a low resistance value and a high resistance value; and a controller that receives a voltage value associated with the current and generates a current value associated with the analog current value, where the current value results in an increase in resolution of a range between the low resistance value and a high resistance value. 2 . The apparatus of claim 1 , where the variable resistance device is a resistive strip. 3 . The apparatus of claim 2 , where the resistive strip further includes a traveler coupled to a sash of a fume hood. 4 . The apparatus of claim 1 , where the variable resistance device is a potentiometer. 5 . The apparatus of claim 1 , where the variable resistance device is a thermistor. 6 . The apparatus of claim 5 , where the thermistor is associated with a thermostat. 7 . The apparatus of claim 1 , further includes an analog-to-digital (A/D) converter that converts the voltage into the voltage value. 8 . The apparatus of claim 1 , further includes a digital-to-analog (D/A) converter that converts the current value into the analog current value. 9 . The apparatus of claim 1 , where the controller is a microcontroller.
Assignees
Inventors
Classifications
- G01R27/02Primary
Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant (by measuring phase angle only G01R25/00) · CPC title
the element being a non-linear resistance, e.g. thermistor (G01K7/26 takes precedence) · CPC title
- G01K7/24Primary
in a specially-adapted circuit, e.g. bridge circuit · CPC title
using digital measurement techniques · CPC title
Autoranging circuits · CPC title
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- What does patent US2016334448A1 cover?
- An approach for maximizing the resolution of a resistance sensor with a variable current source.
- Who is the assignee on this patent?
- Siemens Industry Inc
- What technology area does this patent fall under?
- Primary CPC classification G01R27/02. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Nov 17 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).