In-cylinder pressure detecting apparatus
US-2016222892-A1 · Aug 4, 2016 · US
Field device
US9803995B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9803995-B2 |
| Application number | US-201514879314-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 9, 2015 |
| Priority date | Oct 15, 2014 |
| Publication date | Oct 31, 2017 |
| Grant date | Oct 31, 2017 |
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- Title
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Abstract
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A field device includes a detected signal converter configured to convert a detected signal of a sensor into a predetermined voltage and then to output the voltage, an amplifier configured to amplify an output signal of the detected signal converter, and a switching power supply as an internal driving power supply of the field device.
First claim
Opening claim text (preview).
What is claimed is: 1. A field device comprising: a detected signal converter configured to convert a detected signal of a sensor into a predetermined voltage and then to output the voltage; an amplifier configured to amplify an output signal of the detected signal converter; and a noise filter, wherein the detected signal converter is configured to set a primary-side voltage of the noise filter as a reference voltage. 2. A field device comprising: a detected signal converter configured to convert a detected signal of a sensor into a predetermined voltage and then to output the voltage; an amplifier configured to amplify an output signal of the detected signal converter; a switching power supply as an internal driving power supply of the field device; and a noise filter, wherein the amplifier is configured to set a primary-side voltage of the noise filter as a reference voltage. 3. The field device according to claim 1 , wherein the field device is a pressure transmitter. 4. The field device according to claim 2 , wherein the field device is a pressure transmitter.
Assignees
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Classifications
- G01D3/10Primary
with provision for switching-in of additional or auxiliary indicators or recorders · CPC title
Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom · CPC title
Filtering noise I-O · CPC title
in which the signal transmitted is magnitude of current or voltage (G08C19/36, G08C19/38 take precedence) · CPC title
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Frequently asked questions
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- What does patent US9803995B2 cover?
- A field device includes a detected signal converter configured to convert a detected signal of a sensor into a predetermined voltage and then to output the voltage, an amplifier configured to amplify an output signal of the detected signal converter, and a switching power supply as an internal driving power supply of the field device.
- Who is the assignee on this patent?
- Yokogawa Electric Corp
- What technology area does this patent fall under?
- Primary CPC classification G01D3/10. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Oct 31 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).