Electronic device
US-2024385061-A1 · Nov 21, 2024 · US
Force sensor and robot
US2018149530A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018149530-A1 |
| Application number | US-201715822502-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 27, 2017 |
| Priority date | Nov 29, 2016 |
| Publication date | May 31, 2018 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A force sensor includes a plurality of piezoelectric elements that output charge when subjected to an external force, each of the plurality of piezoelectric elements has two electrodes and a piezoelectric material provided between the two electrodes, and the piezoelectric elements are arranged without overlap with each other in a plan view as seen from a direction in which the two electrodes are arranged, and the piezoelectric elements are electrically series-connected. The piezoelectric materials of the plurality of piezoelectric elements are integrally formed.
First claim
Opening claim text (preview).
What is claimed is: 1 . A force sensor comprising a plurality of piezoelectric elements that output charge when subjected to an external force, each of the plurality of piezoelectric elements having two electrodes and a piezoelectric material provided between the two electrodes, the piezoelectric elements arranged without overlap with each other in a plan view as seen from a direction in which the two electrodes are arranged, the piezoelectric elements are electrically series-connected. 2 . The force sensor according to claim 1 , wherein the piezoelectric materials of the plurality of piezoelectric elements are integrally formed. 3 . The force sensor according to claim 1 , wherein the plurality of piezoelectric elements are stacked in the direction in which the two electrodes are arranged. 4 . The force sensor according to claim 1 , wherein the piezoelectric material is formed by quartz crystal. 5 . The force sensor according to claim 1 , further comprising a charge amplifier to which the change is input. 6 . A force sensor comprising: a base portion having a placement surface; and a plurality of piezoelectric elements arranged side by side in a direction along the placement surface, electrically series-connected, and outputting charge when subjected to an external force. 7 . A robot comprising the force sensor according to claim 1 . 8 . A robot comprising the force sensor according to claim 2 . 9 . A robot comprising the force sensor according to claim 3 . 10 . A robot comprising the force sensor according to claim 4 . 11 . A robot comprising the force sensor according to claim 5 . 12 . A robot comprising the force sensor according to claim 6 .
Assignees
Inventors
Classifications
- G01L1/16Primary
using properties of piezoelectric devices · CPC title
Sensing device · CPC title
- B25J13/085Primary
Force or torque sensors (B25J13/082, B25J13/084 take precedence) · CPC title
using piezoelectric means · CPC title
Force sensors associated with force applying means (G01L5/0052, G01L5/0057, G01L5/0061 take precedence) · CPC title
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- What does patent US2018149530A1 cover?
- A force sensor includes a plurality of piezoelectric elements that output charge when subjected to an external force, each of the plurality of piezoelectric elements has two electrodes and a piezoelectric material provided between the two electrodes, and the piezoelectric elements are arranged without overlap with each other in a plan view as seen from a direction in which the two electrodes ar…
- Who is the assignee on this patent?
- Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification G01L1/16. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu May 31 2018 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).