Industrial Experience

Timber truck lago 1 LAgo bus 1Dr Thomas Lagö is a true entrepreneur from the Småland region in Sweden (where e.g. IKEA and Husqvarna comes from) with experience from the production floor but has also driven both tour busses and large timber trucks professionally. He still has a full driver license including: motorcycle, car, taxi, trailer, truck (all sizes) and tour buses.

Småland 1Thomas Lagö started as an upholsterer and then working as a carpenter (he still loves to do some wood work). He was also a radio and television technician for many years that gave him a good education and experience on trouble shooting and fixing electronics. Thomas Lagö has also worked with R & D, sales and marketing in both large and small companies, national and international. He joined Hewlett-Packard in 1983 and was lucky to attend HP’s sales and marketing training in Silicon Valley USA (Palo Alto). Other strategic divisions in the United States were included in the training. Later, he became the Product Line Manager for HP Europe, handling the Dynamic Signal Analyzer product line (sound and vibration products). On Linkedin, you can find more info on Thomas Lagö’s international industrial experience after the “HP time”.

Dr Thomas Lagö has spoken on “Invest In America  Seminar, “conference” Atlantic Crossing – A Conference About Success (and Failure) in the USA “but also on E-Days (Entrepreneurial  Days). Dr Thomas Lagö also participated in a small group of experts, with the initiative of the University Chancellor, who visited Israel and studied innovation strategies.  Dr Thomas Lagö also participated in Vinnova’s Expert Group on Intellectual Property. Dr Thomas Lagö has also been involved and participated in the writing of the published book “Collaboration – The art of WE.” He has also received industry awards for its work in combining research with industry and a number of scientific awards.


Programblad_AtlanticCrossing_2010_juni-3Here, you can look at the program: Programblad_AtlanticCrossing_2010_juni

Link to the book that Thomas Lagö was part of: Collaborate, the art of WE!

http://books.google.se/books?id=sBIhzzwvlJQC&pg=PT14&lpg=PT14&dq=lagö+collaborate+the+art+of+we&source=bl&ots=wtB8GjuS68&sig=gb3PmLHk7qDY1u4KLiKU9TSvyQw&hl=en&sa=X&ei=Tc8aVKVw9_6wBMbCgtgE&ved=0CEcQ6AEwBQ#v=onepage&q=lagö%20collaborate%20the%20art%20of%20we&f=false

Dr Thomas Lagö has been presented papers at National Instrument’s conferences NI WEEK in Austin, Texas, USA.

Dr Thomas Lagö has a substantial academic education and background. However, his industrial experience is even larger. Combining theory and applications for success is something that drives Dr Thomas Lagö. Since he does not have a box, it is common that he can help find solutions from “other scientific areas” that were never considered when you are “in the box.” This “no box attitude” has help solve very complicated problems. Therefore, Dr Thomas Lagö often jokes that “Mission Impossible is My Mission“.

When getting a doctor’s degree it is important to SOLVE A PROBLEM RIGHT. However, Dr Lagö often claims that in industry WE MUST SOLVE THE RIGHT PROBLEM (and often, just right enough). There can be a world of difference in between the two approaches. The latter is the one that Dr Lagö is focused on!

Småland 2The map show Sweden and then the Småland region (in red and is enlarged below). Dr Thomas Lagö is born in the city of Huskvarna where Husqvarna has its headquarters.

AUDIO ENGINEERING WORK

In the spring of 1978, Falk’s Studio in Eksjö, Sweden, required a new mixer board for their professional recording studio. The owner, Evan Ljunggren, gave Thomas Lagö the responsibility to design and build a 24 channel mixer board according to needs of Ljunggren’s. This worked began at the beginning of the summer, and was completed before fall of 1978.
The mixer board was designed using the LM381A, an ultra low noise IC for sound applications, released in 1978. The input stages were designed using classical high quality transformer technologies, combined with ultra-low noise components. One advantage of the use of transformers is the limited slew rate, thus ensuring that none of the following amplifier units will later limit the slew rate. The LM381A circuit was a good IC for sound applications but had a rather large variance in terms of noise performance and thus a screening and selection of the integrated circuits was necessary. Also, the LM381A is very sensitive to the grounding system design and the impedance in the power supply. This was handled by using multiple ground systems, one for each component group, and then carefully fed back to a one-point grounding in the power supply. Multiple grounding systems, electrically isolated in each module, between signals, power and shield were introduced. These systems were then connected in the power supply system using correct impedance matching.

In a professional mixer board design, it is of utmost importance to keep the noise floor low, suppress power line noise and also accomplish extreme suppression of inter-channel signals and noise, at the same time as keeping sound quality high, the dynamic range large and the distortion low. It was also a wish to have the system modular for repair and service purposes. This was accomplished using independent metal boxes, packed two channels in one box. Each box had a connector system easily accessible by removing the box. Sheet metal was used for the box, with completely sealed boxes, and an aluminum top for the layout and text. All wiring was installed using shielded cables, even for the power supply parts. Within each box, a carefully designed shield was installed to minimize crosstalk between the two channels in each box. A wooden frame with a leather front was made to house the twelve sound modules to accomplish the 24 channels. The Intercom and sound monitor system was computerized, using a Z80 microprocessor based switching system as an automated switch board system. To keep the sound quality high, reed relays, controlled by the Z80 microprocessor was used. This ensured a galvanic free coupling and no crosstalk between channels. This solution, using a computer as a switch board with memory capabilities and preset “monitor patterns” was very unique at the time.

Mixer 1The mixer board was installed in the summer of 1978 and has now been used successfully for almost 25 years. The mixer board has been used almost daily, with extremely few mishaps and no major parts changed. Failure of the operation has only happened a handful of times and very few components had to be exchanged, mainly a couple of integrated circuits (LM381A) and a couple of capacitors that started to leak (increased noise floor). This proves that this rugged and extremely carefully designed mixer board, is one of its kind in the world.

Many professional groups have been in the Falk Studio using the mixer board and its sound quality has been praised many times. Even today, after all these years, the sound quality is up to par and is still praised, especially for its distinct and crisp sound still being soft, combined with the low noise floor.

The complete design and construction was performed by Thomas Lagö but in the manufacturing process, he had assistance from his wife, Karin Lagö and Evan Ljunggren’s son, Kjell Ljunggren. Werner Hilliges from Bankeryd, Sweden, assisted in the microprocessor work, mainly due to time restrictions and key deadlines.