1 / 12

Characterization of Force Sensor for Haptic sensing in Robotic Surgery

Characterization of Force Sensor for Haptic sensing in Robotic Surgery. Submitted by: Harsimran Jit Singh Dinesh Pankaj Dr. Amod Kumar Prof. V.Rihani. HAPTICS :

evan
Download Presentation

Characterization of Force Sensor for Haptic sensing in Robotic Surgery

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Characterization ofForceSensor for Haptic sensing in Robotic Surgery Submitted by: Harsimran Jit Singh Dinesh Pankaj Dr. Amod Kumar Prof. V.Rihani

  2. HAPTICS: Haptics is the science of applying touch sensation by using special input/output devices and control with some computer applications, users can receive feedback from computer applications in the form of felt sensations in the hand or other parts of the body.

  3. Robotic Surgery & Haptics • In the context of Robotic Surgery, Haptics provides a force feedback from the robotic equipment to the surgeon. • After implementing Haptics in the Robotic equipment, the force profile generated inside patients body will be replicated to the surgeon’s hand.

  4. Importance of Force-Feedback • significantly reduces the number of errors. • helps in performing soft-tissue identification • provides very effective method interaction between the surgeon and the robotic equipment. • its an important secondary method of interaction other than visual interactions.

  5. Approach Characterization of a Sensor to be used in a force feedback device that can sense a one dimensional force profile being produced in a physical model. Sensor used: METAL-FOIL STRAIN GAUGE

  6. CIRCUIT EMPLOYED: Wheat stone in Quarter-Bridge configuration

  7. EXPERIMENTAL SETUP MATHEMATICAL EXPRESSION: (Using bending equation) Vo / V ex = [(1.5 GF*F*L)/(4*b*h^2)]*[ 1/( 1+(3*GF*F*L)/ (4*b*h^2))]

  8. PRACTICAL EXPERIMENTAL SETUP

  9. OBSERVATIONS

  10. RESULTS & CONCLUSION • The sensor is characterized for force from 0-1KgF • Slope of trend line is 1.158 v/V/gF • with Y-intercept at 0.95933mv/V • when normalized with respect to the excitation voltage. • Standard error in voltage output is 3.75%.

  11. Discussion • Based on repeatability achieved using this sensor module during our work, the presented sensor can be used in a Haptic force feedback system in proposed applications like robotic surgery with appropriate modifications. • Further developments shall make this interactive interface system suitable for multi dimensional force measurement and hopefully provide a more precise sensation of realness that adds a step forward towards the development of a haptic virtual environment.

  12. THANK YOU

More Related