Lab for Optoelectronics

Setup in which a high-performance LED is operated via a constant-current source
Image of a DSP and an oscilloscope which shows the audio signal of a microphone.
Determining the resistance value via a measuring device
Measuring the short-circuit current of a solar panel

Laboratory: Room 1.U.29

Teaching

General Engineering Lab “Solar Cell Electronics”

The following experiments are part of the GELab “Solar Cell Electronics”:

  • Current and voltage curves at different levels of illumination
  • No-load voltage and short-circuit current at different temperatures
  • Charging electronics IC: Measurement at the step-up chopper using the oscilloscope

General Engineering Lab “Electronics of High-Performance LEDs”

The following experiments are part of the GELab “Electronics of High-Performance LEDs”:

  • Recording the current-voltage curve of an LED
  • Power supply electronics by means of a voltage-dropping resistor
  • Power supply electronics by means of a constant-current source

Practical course: Digital signal processor (BET)

The following experiments are part of the practical course: Digital Signal Processor (DSP):

  • Quantisation noise and aliasing
  • Volume, balance, and stereoscopic image widening
  • Echo with ring memory
  • FIR filter

Lecture on Accumulator System Technology (MET)

The lecture “Accumulator System Technology” introduces you to various types of rechargeable batteries and their fields of application. A great part of the lecture will teach you the structure and electro-chemical processes of a galvanic cell. Over the course of the lecture, fundamental experiments and sample calculations oriented towards the real world will bring you even closer to the topic.

Lecture in Optics (BET)

During the lecture “Optics”, students will learn about light from its physical point of view (wave-particle duality) and how to apply state-of-the-art technology. In addition, topics of this lecture include geometrical optics, imaging components, light sources and receptors, and further optical effects. Optical fibre and projectors serve as practical examples to apply and deepen knowledge on the topic.

Focus topics of research and development

Various projects and research work are conducted in the Lab for Optoelectronics.

We currently conduct research on an optical test system supported by machine learning (MOPS), which is funded by the Bavarian State Ministry for Economic Affairs, Energy and Technology. Here, it is currently under investigation whether machine learning can be combined successfully with new imaging techniques.

Equipment

Core competences of the Lab for Optoelectronics are:

  • Close-up image capturing by means of a line camera
  • Image processing via Matlab and NeuroCheck
  • Interferometric distance measurement
  • Technology of rechargeable batteries

Among other equipment, the lab offers:

  • Matrix and line cameras, linear guides, X-Y stages
  • Lighting and lamps, especially LEDs
  • current and voltage sources
  • signal generators and oscilloscopes
  • a soldering station to be operated by students
  • standard devices and components for quick prototyping
  • microcontrollers and digital signal processors (DSP)
  • battery management systems and chargers for various types of rechargeable batteries
  • incubators for the cycle conditioning of rechargeable batteries
Line scan camera with lighting and concentricity gage
Setup of a white-light interferometry with the corresponding interference pattern
SLR camera on a photo stand with an LC display for illuminating the object

Team

Name E-Mail Details
Prof. Dr. Gunther Bohn
Contact Information

Prof. Dr. Gunther Bohn

Technical University of Applied Sciences
Würzburg-Schweinfurt

Room 1.1.63
Ignaz-Schön-Straße 11
97421 Schweinfurt

Phone +49 9721 940-8444
E-Mail gunther.bohn[at]thws.de

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