Weak force measuring device and method for obtaining transient response limit time thereof

The weak force measurement device, which combines optical methods and photoelectric detectors, solves the problem that existing devices cannot accurately measure transient weak forces, achieves high time resolution and anti-interference capability, and meets the needs of accurate modeling and analysis of dynamic systems.

CN121089953BActive Publication Date: 2026-06-02WESTLAKE UNIV
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WESTLAKE UNIV
Filing Date
2025-11-06
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing weak force measurement devices have poor anti-interference capabilities and slow response speeds, making it impossible to accurately capture rapidly changing transient weak forces, which affects the accurate modeling and analysis of dynamic systems.

Method used

Weak force measurement is performed using optical methods. A hollow elastic structure is used to form an FP resonant cavity. Combined with a photodetector and an oscilloscope, the optical signal is converted into an electrical signal to achieve non-contact, high time resolution, and high sensitivity weak force measurement. The hollow elastic structure is driven by ultrasound to undergo forced vibration, and the transient response limit time is obtained.

Benefits of technology

It achieves accurate capture of rapidly changing transient weak forces, improves response speed, meets the needs of accurate modeling and analysis of dynamic systems, and has high sensitivity and anti-electromagnetic interference capabilities.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121089953B_ABST
    Figure CN121089953B_ABST
Patent Text Reader

Abstract

The application provides a weak force measuring device and a transient response limit time acquisition method thereof, wherein the weak force measuring device comprises a laser source for emitting laser; a receiving unit connected with the laser source for converting the measured weak force into an optical signal; the receiving unit comprises a hollow elastic structure and an optical transmission element connected with each other; the optical transmission element is connected with the laser source at one end away from the hollow elastic structure for transmitting the laser; the hollow elastic structure is provided with a receiving plate at one end away from the optical transmission element, one side of the receiving plate away from the optical transmission element is used for receiving the measured weak force, and the other side is used for reflecting the laser; and a signal conversion unit connected with the optical transmission element is used for receiving the optical signal and transmitting the optical signal to an external computer. The weak force measuring device provided by the application can realize the measurement of transient weak force with a duration of microsecond level, and is beneficial to assisting the accurate modeling and analysis understanding of physical, chemical and biological processes.
Need to check novelty before this filing date? Find Prior Art