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Optical fiber grating three-dimensional force sense probe and manufacturing method

A technology of optical fiber grating and three-dimensional force, which is applied in the direction of measuring force, measuring the change of optical properties of the material when it is stressed, and instruments, etc., can solve the problems of unfavorable force sense measurement, etc., and achieve reasonable position setting, sensitivity and Effects of improved accuracy, improved sensitivity, and improved accuracy

Active Publication Date: 2020-04-03
WUHAN UNIV OF SCI & TECH
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Problems solved by technology

[0006] The purpose of the present invention is to provide a fiber grating three-dimensional force sense probe and its manufacturing method, aiming to solve the technical problems existing in the existing fiber grating probes that are not conducive to long-term and accurate force sense measurement

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  • Optical fiber grating three-dimensional force sense probe and manufacturing method
  • Optical fiber grating three-dimensional force sense probe and manufacturing method
  • Optical fiber grating three-dimensional force sense probe and manufacturing method

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] In order to solve the technical problems existing in existing fiber grating probes that are not conducive to long-term and accurate force measurement, on the one hand, Embodiment 1 of the present invention provides a fiber grating three-dimensional force sense probe, see Figure 1-5 , as detailed below:

[0042]A fiber grating three-dimensional force sense probe. The integrated fiber grating probe integrates a fiber grating with a small sensing volume, which can be used to measure the force sense of any three different dimensions. During the measurement process, it not only has strong anti-...

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Abstract

The invention belongs to the field of fiber grating probe design, and provides a fiber grating three-dimensional force sense probe and a manufacturing method. The position of the fiber grating of the fiber grating three-dimensional force sense probe is set reasonably, and the sensitivity of the probe to force sense measurement and Accuracy is greatly improved. Among them, multiple fiber gratings are integrated and distributed in the probe body and handle, and are integrated with the probe body and handle, which can effectively avoid bonding failure and force transmission rate reduction caused by changes in material properties during the probe disinfection process And other issues. In addition, multiple fiber gratings are distributed to form different measurement units to measure the force sense of the three-dimensional surface of the probe, and the wavelength shift of the fiber grating in each measurement unit forms a difference output, which effectively improves the force sense of the probe. Measurement sensitivity and precision.

Description

technical field [0001] The invention belongs to the technical field of fiber grating sensors, in particular to a fiber grating three-dimensional force sense probe and a manufacturing method. Background technique [0002] With the development of surgical robots, the accuracy of robotic surgery has been widely recognized by surgeons. However, compared with manual surgery, it is difficult to accurately feed back the force between medical devices and the human body to the controller in real time during robotic surgery. It will undoubtedly increase the blindness and risk of surgery. Therefore, medical devices with force measurement capabilities (such as surgical probes, surgical forceps) are very important for robotic surgery. [0003] Traditional medical devices that can measure force are designed based on sensing technologies such as resistance strain gauges and MEMS. However, these sensing technologies have defects such as large volume, large number of leads, poor signal stab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/24
CPCG01L1/246
Inventor 熊丽郭永兴蒋国璋孔建益
Owner WUHAN UNIV OF SCI & TECH
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