Tuning-fork type quartz crystal vibrating element and piezoelectric device
US-2019165761-A1 · May 30, 2019 · US
Structural implementations for optimizing acoustic resonance in a vibration sensor
US10845237B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10845237-B2 |
| Application number | US-201715628736-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 21, 2017 |
| Priority date | Jul 18, 2016 |
| Publication date | Nov 24, 2020 |
| Grant date | Nov 24, 2020 |
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- Title
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Abstract
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A vibration sensor, with a diaphragm that can be excited via a drive to vibrate, and a mechanical vibrator arranged at said diaphragm, with the mechanical vibrator comprising a cover with at least one closed interior chamber.
First claim
Opening claim text (preview).
We claim: 1. A vibration sensor comprising a diaphragm that can be excited to vibrate via a drive and a mechanical vibrator arranged at the diaphragm, wherein the mechanical vibrator comprises one or more paddles, wherein each such paddle comprises a cover, a closed interior chamber and a filler located within such closed interior chamber, such filler being arranged as a support structure comprising a plurality of ridges and hollow chambers between such ridges, wherein the cover and supporting structure propagates a vibrating frequency. 2. The vibration sensor, according to claim 1 , wherein the filler comprises reduced density compared to the cover. 3. The vibration sensor, according to claim 1 , wherein the support structure is designed in a repeating geometric pattern. 4. The vibration sensor, according to claim 1 , wherein the support structure is designed with a honey-comb like cross-section. 5. The vibration sensor, according to claim 1 , wherein the support structure comprises hollow chambers showing a round cross-section. 6. The vibration sensor, according to claim 1 , wherein the interior chamber is filled with a metal foam. 7. The vibration sensor, according to claim 1 , wherein the cover and/or the support structure show a wall thickness from 50 μm to 500 μm.
Assignees
Inventors
Classifications
- G01H3/00Primary
Measuring {characteristics of} vibrations by using a detector in a fluid (G01H7/00, G01H9/00, G01H11/00 take precedence) · CPC title
Mountings; Casings · CPC title
making use of electrical energy (B06B1/18, B06B1/20 take precedence) · CPC title
for conducting sound through solid bodies, e.g. wires · CPC title
Acoustic waves · CPC title
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Frequently asked questions
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- What does patent US10845237B2 cover?
- A vibration sensor, with a diaphragm that can be excited via a drive to vibrate, and a mechanical vibrator arranged at said diaphragm, with the mechanical vibrator comprising a cover with at least one closed interior chamber.
- Who is the assignee on this patent?
- Grieshaber Vega Kg
- What technology area does this patent fall under?
- Primary CPC classification G01H3/00. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 24 2020 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).