PA - Identifying Actuator Internal Parameters

Offizieller Titel Deutsch

Official Titel English

Task Description / Aufgabenstellung

In the Institute for Mechatronics in Mechanics research is done on the quantification of vibrotactile actuators. Vibrotactile actuators are resonating actuators that oscillate in the vibrotactile frequency range. A type of vibrotactile actuator is the Linear Resonating Actuator (LRA). This type of actuator consists of a mass that resonates in a linear fashion with the help of an actuating force and an restoring force.
To quantify such actuators, a series of tests need to be conducted on them. These tests measure how the actuators impact their surrounding environment as well as how that surrounding environment influences these actuators back. These effects can be tested by operating these actuators on different environmental conditions.

In this PA the internal parameters of vibrotactile actuators should be measured: the spring tension and the force of the spring.

Tasks:

• Control the Servo Motor of the vertical sledge movement using the distance measurement sensor

• Implement an adaptive actuator mounting mechanism for the spring measurement (mechanism and fixture for different actuators of different sizes)

• Measure the max. force and displacement of the actuator spring deflection

• Verify the measured spring constance by comparing it to the actuator resonance frequency of the idle and blocked measurement results

• Implement the shaker and measure the output voltage and current of the actuator

• Verify the output measurements by comparing it to the output voltage and currents of the idle and blocked measurement results

Reference person for questions: @Ali El Nwegy and @Juliana Lüer

Zeitplanung:

Checklist

• Introduction / tour in M4

• Urheberrechtsvereinbarung signed: https://www.tuhh.de/t3resources/sls/pdf/ZPA/Formulare_oeffentlich/Rechte_an_Abschlussarbeiten.pdf

• if applicable: signed confidential agreement

• official registration

Helpful links:

• Thesis Work / Studentische Arbeiten 

• Criteria for the evaluation of Bachelor's and Master's theses, handout version

• Laborordnung

• Spotlights / Kurzvorträge

• Templates (Latex, ppt etc.)

Document Upload Final Thesis / Dokumentenabgabe Abschlussdokument

File of final presentation / Dokumentenabgabe Abschlusspräsentation

Link for further files / Link für weitere Dokumente