Search through all Show Cases

SP1  Removable Data Storage  .

SP2  Home Computing  .

SP3  Campus-wide Connectivity  .

SP4  Early THT/UT Desktop PC's  .

The early history of the UT personal desktop computers can be divided the pre and post IBM PC introduction area. The pre IBM compatible PC area consisted mainly of Apple II devices, both used in the laboratory and on the desktop.
The early history of IBM PC compatible desktops consists of:
1. Sirex desktops (PCs assembled in Enschede, starting in 1984)
2. Olivetti desktops. The initial Olivetti M24 was used as a desktop at office locations.

TC  TechMed Vitrine  .

V01  Current and voltage measurement  .

Various old current and volt meters; galvanometers; current clamps; shunt resistors.

V02  Standards & Compensators  .

Before the advent of digital electronic voltmeters, accurate measurement of a voltage or impedance was achieved by applying the compensation method. The unknown quantity is compared with an adjustable known one of the same kind. The known quantity is changed until the difference is zero, which is detected by a sensitive null-indicator. In equilibrium, the unknown quantity is equal to the known one. In this way, voltages, currents and impedances can be accurately measured. Instruments for voltage and current are called compensators. They comprise an accurate voltage source (reference cell) and a resistance network with adjustable topology, providing a range of attenuation factors. The instrument for measuring a resistance (impedance) is called a bridge. It contains one or more reference resistors (impedances) and a stepwise adjustable resistance, called a resistance decade box. Examples of compensators, bridges, reference voltage sources, reference resistors and decade banks are all displayed in this cabinet. More types are stored in the depository of the Historical Collection of the Ampère Foundation.

V03  Sensors and Transducers  .

Measurement of: temperature; humidity; linear and angular displacement; light and sound; force and acceleration; liquid and gas parameters, flow.

V04  Signal Visualization  .

Plotter Minigor type RE501; Multimeter Multiscript 3; Various oscilloscopes; Cathode ray tube in exploded view; Cathode ray tube with magnetic deflection; Scope camera's.

V05  TCO products  .

Overview of various objects made from glass, produced by CNC or 3D printer

V06  Vacuum technology  .

Various components user for vacuum technology coarse

V07  BSS- Motion Stimulation & Recording  .

V08  Storage devices  .

Various storage media and devices used in computer history

V09  Home Computers  .

keyboards; monitors; hard disks; hard disk drives

V10  Radio Frequency and Radar  .

Various components for data communication and signal measurement, in the high frequency range.

V11  Signal visualisation  .

Various cathode ray tubes and plotters

V12  Laptop computer history  .

Timeline of laptop development

V13  Robotics and Mechatronics  .

V14  Handheld Devices  .

V15  Processing of Integrated Devices and Circuits  .

Showcases the processing of Integrated Devices and Circuits at the THT/UT during 1966- till nowadays. Main contributions are development stages on (Si) wafers with research on growing layers.

Low temperature deposition with Jet Vapour Deposition (JVD) 
 film Low Temperature Deposition

V16  Integrated Devices and Systems (IDS)  .

The Showcase describes some technological steps during the realization of integrated devices in semiconductors.
- Starting with theoretical modeling
- Prepare silicon
- Align masks for deposition
- The deposition procedures
- Scratching the wafers into dies.

V17  Education  .

V18  Standards and Compensators  .

V19  Radiosystems  .

In deze vitrine wordt een overzicht gegeven van de ontwikkelingen op het gebied van radio communicatie in de afgelopen 50 jaar. Het overzicht is niet compleet, dat zou heel lastig zijn, maar het geeft wel een interessante indruk van de ontwikkelingen die gedurende die periode hebben plaatsgevonden. De reis van draadloze communicatie is een fascinerend verhaal van innovatie, pionierswerk en internationale samenwerking, van de eerste piepers tot de huidige 5G-netwerken. In dit verhaal belicht Gé Klein Wolterink de opkomst van cruciale technologieën zoals mobiele telefonie, DECT, Bluetooth en Wi-Fi.

pdf Radio communicatie in de afgelopen 50 jaar

V20  ElectroMagnetic Compatibility  .

1-4 various power meters

V21  IC Design & Devices  .

V22  Human Media Interaction - Virtual Reality  .

History of VR-Headsets

V23  BSS - The Parkinson Project  .

The first biomedical Engineering project of the University of Twente, at that time the THT

pdf The Parkinson project (1965-1970) - Piet Bergveld

V24  Integrated Circuit Design  .

This showcase contains a selection of several CMOS-designs developed in the period 1998-nowadays.
These designs cover the following area's:

- Spatial and Frequency Domain Filtering
- N-Path Filters
- Noise Reduction
- A/D-Conversion and Subsampling

- Circuit/System Receiver Solutions
- D/A Conversion
- Amplifiers
- Optical Applications
- Data Transmission
- An impression of a Virtual Reality walk through a chip-design.


pdf Overview of the specific circuit designs

V25  Algorithmics  .

V26  Arithmetics  .

V27  Processing Hardware  .

V28  Personal Computing  .

V29  Creative Technology  .

V30  From Past To Future  .

V31  Measurement & Instrumentation  .

V32  Telecommunications  .

Telephony began with Alexander Graham Bell’s invention of the telephone in 1876, utilizing wired connections for voice transmission. Throughout the 20th century, various technologies emerged, including manual telephony, automatic switching systems, and wireless radio connections.
Mobile telephony took shape in the late 1940s and 1950s with the development of the first mobile communication systems. However, the first commercial mobile phones were launched in the 1980s, which were large and heavy. The real breakthrough came in the 1990s with the advent of digital technologies, leading to the development of GSM (Global System for Mobile Communications) and the first smartphones in the early 2000s. Since then, mobile telephony has experienced exponential growth, with continuous innovations in connectivity, functionality, and wireless technologies, including the rise of 3G, 4G, and 5G networks.

V33  A walk through Computer History (1)  .

After the first commercial digital computers came into operation in the 1950s, a technologically driven development followed that continues unabated at a rapid pace, still 70 years later. When we look back, we see that computer equipment and its embedding in daily life has gone through a complete renewal almost every decade. With the continuous increase in processing speed and memory storage, the development of programming languages, algorithms, storage and control techniques is taking off at a high flight. And with it the application possibilities.
A chronological walk through computer land can never fully show the variety of developments. The composition of this display case aims to typify different periods and is intended as a "feast of recognition" of earlier times.

Shifting paradigms 

V34  A walk through Computer History (2)  .

After the first commercial digital computers came into operation in the 1950s, a technologically driven development followed that continues unabated at a rapid pace, still 70 years later. When we look back, we see that computer equipment and its embedding in daily life has gone through a complete renewal almost every decade. With the continuous increase in processing speed and memory storage, the development of programming languages, algorithms, storage and control techniques is taking off at a high flight. And with it the application possibilities.
A chronological walk through computer land can never fully show the variety of developments. The composition of this display case aims to typify different periods and is intended as a "feast of recognition" of earlier times.

Shifting paradigms 

V35  Power Electronics  .

groep Gert Rietveld

V36  ISFET Lab-on-a-chip  .

This showcase reflects the remarkable story of the ISFET sensor: its invention and the advanced applications resulting from it. Piet Bergveld, who studied at the TH Eindhoven and worked as graduation student at the Philips Laboratory, discovered the potential of a MOS-transistor to measure the ion flow in liquid substances. It enabled a broad scala of biomedical applications. Nowadays, integrated circuits with millions of ISFETs are embedded in medical instruments. They function as a kind of biochemical camera. Piet Bergveld - being retired after a career as professor at the UT - has composed this exposition in retrospect. The documents and links provide general information. Specific details are given along with the exposed items.

pdf Van één ISFET op een chip naar meer dan een miljoen ISFETS op een chip
pdf From 1 ISFET per chip to more than a million per chip
pdf The ISFET invention by Dr. Piet Bergveld
https Piet Bergveld-40 years of ISFET technology

V37  Memory Evolution  .

Historic collection of data storage devices and media

V38  Boulitte Electrocardiograph  .

The Boulitte Electrocardiograph is one of the first commercial, medical instruments to observe the electrical activity of the human heart. The cardiograph produces an ECG on film, an electrocardiogram, often simply called a heart film. The electrocardiograph as shown here, is the last version made by the French company Boulitte around the thirties of the previous century. The electrocardiograph is based on the invention of 1924 Nobel Prize winner prof. W. Einthoven. He constructed in his laboratory at the University of Leiden the first system to record an ECG.

pdf IEEE symposium String Galvanometer LUMC

V39  Mechatronics  .

Various prototypes by Master students and PhD students of the Robotics and Mechatronics research group (RAM).

V40  Robotics  .

Sensorized moving robots from MSc and PhD projects. Small robots for education and entertainment; various prototypes of pipe inspection robots (gas pipes, sewer pipes).

V41  Computer Networking  .

This show case presents a historical view of typical communication equipment used in subsequent periods of the computer era: telecom based modem connections, multi-access segmented Ethernet cables (repeater/bridge-based), switched/routed TCP/IP (sub)nets and finally today's world-wide LAN/WAN internet.

V42  Network Technology  .

This view case reflects technological developments of communication between computer systems and end-users. In particular it is related to the heritage of R&D at the THT/UT.

V43  Sensing Devices  .

V44  Distributed Sensing  .

V45  PDP-8 Minicomputer  .

The PDP-8 (Programmed Data Processor) became in 1964 the first successful minicomputer by the Digital Equipment Corporation. It became the start of a succesful range of minicomputers. The 12 bit range of the PDP-8 series was succeeded by the 16 bit PDP-11 series, followed by the 32 bit VAx-11 series.

W1  Display case: Passive electronic components  .

1. transformers, various types 2. capacitors - variable air capacitors - trimming capacitors 3. capacitors - tantalum, electrolytic 4. resistors rotable and linear potentiometers - trimming potentiometers 5. resistors: high power types 6. crystals: raw (corundum) mounted as oscillator 7. coils, various types

W2  Display case: Active electronic components  .

1. Tubes: special types 2. Tubes: general purpose 3. Diodes: Ge, Si; Thyristors 4. Transistors: Ge, Si, bipolar, MOSFET 5. LEDs; IC's: analogue, digital 6. Integrated systems: amplifiers, ADC's, DAC's, peak detectors 7. Triodes; programmable gain amplifiers; selenium rectifiers

W3  Display case: Sensors and meters  .

1. Ammeters (various ranges) 2. Voltmeters (various ranges) 3. Linear displacement sensors: LVDT; strain gauges 4. Optical sensors: proximity, PSD, LDR 5. Angular encoders, mechanical, optical; acceleration sensors 6. Pressure sensors; acoustic sensors 7. Temperature sensors: Pt100, thermocouples, mercury-in-glass 8. Humidity sensors; Araometers

W4  Wandvitrine: Processoren  .

W5  Wandvitrine: Geheugendragers  .

W6  Display case: Communications Tubes  .