An­ge­bot 115 von 276 vom 10.09.2018, 11:15


Fraun­ho­fer Insti­tut für Pho­to­ni­sche Mikro­sys­teme

Das Fraun­ho­fer-Insti­tut für Pho­to­ni­sche Mikro­sys­teme ist eines von 67 Insti­tu­ten der Fraun­ho­fer-Gesell­schaft, einer der füh­ren­den Orga­ni­sa­tio­nen für ange­wandte For­schung in Europa.

Mas­ter-/ Diploma The­sis "Cha­rac­te­riza­t­ion of Pas­sive Flap Val­ves in Late­ral Microf­lui­dic MEMS-Devices (IPMS-2018-132)

Work­ing field:

Flow-regu­la­tion and -gene­ra­tion on a micro­me­ter length scale are of high sci­en­ti­fic and indus­trial inte­rest in the ongo­ing trend of sys­tem minia­tu­riza­t­ion. The Fraun­ho­fer IPMS the­r­eby uses a paten­ted class of late­ral elec­tro­sta­tic ben­ding actua­tors to deve­lop a set of sili­con based Micro­pumps and Micro­val­ves devices. The flow rec­tify­ing ele­ments namely the pas­sive flap val­ves of the micro­pumps are the­r­eby cru­cial for a high per­for­mance of the device. Does the flow exhi­bit a lami­nar flow pro­file around the valve body or does a limit­ing tur­bu­lence occur during the ope­ra­tion? To ans­wer this ques­tion an opti­cal method of flow visua­liza­t­ion cal­led micro-Par­ti­cle Ima­ging Velo­ci­me­try (µPIV) is avail­able.

Key aspects:

  • Deter­mine key set­tings in µPIV Works­pace for mea­su­re­ments of in-house fabri­ca­ted microf­lui­dic devices
  • Cha­rac­te­riza­t­ion of the flow around pas­sive val­ves in the micro­pump-chips
  • Eva­lua­tion of the dyna­mic valve beha­vior
  • Cal­cu­la­tion of flui­dic mecha­ni­cal dimen­si­onless num­bers (Reynolds num­ber,…)
  • Veri­fi­ca­tion of simu­la­tion results and ana­lyti­cal models by flui­dic mea­su­re­ments

What you bring:

  • Basic know­ledge in the field of micro­sys­tems and micro­sys­tem tech­no­logy would be an advan­tage
  • Basic know­ledge in the field of flui­dic mecha­nics and / or microf­lui­dics
  • Know­ledge of working in a labo­ra­tory and metro­logy tech­ni­ques
  • Inde­pen­dent, goal-ori­en­ted and struc­tu­red way of working
  • Enjoy­ment of working in an inter­di­sci­pli­nary team

What to expect:

You will find a large net­work of experts working in an open and col­le­gial envi­ron­ment wit­hin the excel­lent Fraun­ho­fer rese­arch and deve­lop­ment infra­struc­ture. We offer an excit­ing, up-to-date the­sis posi­tion in which you can bene­fit from our expe­ri­en­ced team. Our excel­lent indus­try-rela­ted rese­arch and deve­lop­ment infra­struc­ture pro­vi­des you access to a large net­work of experts. You will become part of an inspi­ra­tio­nal inter­na­tio­nal work envi­ron­ment based on trust, crea­ti­vity and team spi­rit. We bes­tow upon you the res­pon­si­bi­lity for your the­sis pro­ject, ensu­ring you space for auto­no­mous work.

Work is plan­ned to be car­ried out in our office in Cott­bus. The the­sis is awar­ded over a Ger­man part­ner uni­ver­sity accord­ing to the hig­her edu­ca­tion laws of the respec­tive federal state.

Fraun­ho­fer is Europe’s lar­gest app­li­ca­tion-ori­en­ted rese­arch orga­niza­t­ion. Our rese­arch efforts are gea­red ent­i­rely to people’s needs: health, secu­rity, com­mu­ni­ca­tion, energy and the envi­ron­ment. As a result, the work under­ta­ken by our rese­ar­chers and deve­l­o­pers has a signi­fi­cant impact on people’s lives. We are crea­tive. We shape tech­no­logy. We design pro­ducts. We improve methods and tech­ni­ques. We open up new vis­tas.

If you have any ques­ti­ons regar­ding this posi­tion, please do not hesi­tate to con­tact us.