18591627. ACCELERATION SENSOR simplified abstract (ROHM Co., LTD.)
Contents
ACCELERATION SENSOR
Organization Name
Inventor(s)
Daisuke Nishinohara of Kyoto (JP)
ACCELERATION SENSOR - A simplified explanation of the abstract
This abstract first appeared for US patent application 18591627 titled 'ACCELERATION SENSOR
The present disclosure introduces an acceleration sensor with a unique design for detecting acceleration along a specific direction.
- The sensor includes a substrate, a first mass portion movable along the substrate's thickness direction, and a beam portion supporting the first mass portion.
- The beam portion consists of a second mass portion with less mass than the first mass portion, a first spring portion connecting the two mass portions, and a second spring portion connecting the second mass portion to the substrate.
- A sensor element with a movable electrode on the second mass portion and a fixed electrode on the substrate is used to detect acceleration.
Potential Applications:
- Automotive industry for airbag deployment systems
- Consumer electronics for motion detection in devices
- Aerospace industry for vibration monitoring in aircraft
Problems Solved:
- Accurate detection of acceleration along a specific direction
- Compact design for integration into various devices
Benefits:
- Improved safety features in automotive applications
- Enhanced motion sensing capabilities in consumer electronics
- Precise vibration monitoring in aerospace applications
Commercial Applications: Acceleration sensors can be used in a wide range of industries, including automotive, consumer electronics, and aerospace, to enhance safety, improve motion detection, and monitor vibrations effectively.
Questions about Acceleration Sensors: 1. How does the unique design of this acceleration sensor improve accuracy in detecting acceleration? 2. What are the key differences between this acceleration sensor and traditional designs in terms of performance and applications?
Original Abstract Submitted
The present disclosure provides an acceleration sensor. The acceleration sensor includes: a substrate; a first mass portion supported by the substrate so as to be movable along a thickness direction of the substrate; and a beam portion supporting the first mass portion on the substrate. The beam portion includes: a second mass portion having a mass less than a mass of the first mass portion; a first spring portion connecting the first mass portion with the second mass portion; and a second spring portion having a spring constant smaller than a spring constant of the first spring portion and connecting the second mass portion with the substrate. A movable electrode of a sensor element is disposed on the second mass portion and configured to detect an acceleration along the thickness direction of the substrate. A fixed electrode of the sensor element is disposed on the substrate.
