angular velocity sensor
A technology of angular velocity sensor and driver sheet, which is applied to instruments, gyro effect for velocity measurement, velocity/acceleration/shock measurement and other directions, which can solve problems such as decreased detection accuracy
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
no. 1 Embodiment approach
[0034] A first embodiment of the present application will be described with reference to the drawings. The angular velocity sensor of this embodiment has a sensor unit and a circuit unit, and first, the configuration of the sensor unit will be described.
[0035] Such as Figure 1 ~ Figure 3 As shown, the sensor unit 10 includes a first substrate 20 having one surface 20 a and the other surface 20 b opposite to the one surface 20 a. One surface 20a is also referred to as a first surface, and the other surface 20b is also referred to as a second surface. The first substrate 20 is made of crystal, PZT (lead zirconate titanate), etc. as a piezoelectric material. Further, the first substrate 20 is subjected to well-known microfabrication to form the groove portion 21 , and the vibrating body 22 and the outer peripheral portion 23 are separated and formed by the groove portion 21 .
[0036] The vibrator 22 is configured such that the first and second drive pieces 24 and 25 and t...
no. 2 Embodiment approach
[0082] A second embodiment of the present application will be described. This embodiment does not include the control electrodes 34 b , 35 b , and 36 b and the lower electrodes 72 to 74 compared to the first embodiment, and the rest are the same as those of the first embodiment, so description thereof will be omitted here.
[0083] In this embodiment, if Figure 8 As shown, the control electrodes 34 b , 35 b , and 36 b are not formed on the first and second drive chips 24 , 25 and the detection chip 26 . In addition, the lower electrodes 72 to 74 are not formed on the third substrate 70 .
[0084] and, if Figure 9 As shown, the circuit unit 90 does not include the second control circuits 101a to 101c, and the ground potential as a reference potential is input to the C-V conversion circuits 97a to 97c.
[0085] Next, the operation of such an angular velocity sensor will be described by taking the first driving piece 24 as an example.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com