Laboratory of Electronic Engineering (LEE) of ISSP UL has been executing orders for all ISSP UL structures for decades and providing technical assistance and advice on current electronics issues.

For many years, LEEhas developed and produced specialized research equipment (photon counters, taumeters, thermostats, pulse selectors, specialized power supplies, etc.) on orders from ISSP physicists and other organizations.

LEEhas been constantly striving to increase the level of commercialization of researchsince establishment of the Semiconductors Physics Problems Laboratory and the ISSP UL. The financial side of the founding and building of the ISSP itself was largely provided by contracted and executed works by the radioelectronics department, the design office and the workshops, commissioned by the leading USSR scientific institutes and military industrial complex companies.

TheLEE laboratory has always promoted academic and business cooperation and supported joint research with project partners (eg ERDF project with FONONS Ltd). At the request of the Ministry of Foreign Affairs of the Republic of Latvia, we designed and installed the Skrunda locator radiation control system. We have created an automated system for monitoring and collecting environmental quality monitoring data for the State Environmental Agency, as well as implementing dozens of other projects.

Scientific degree Name Surname Position Phone number E-mail
MSc. Irina Gvardina Leading software engineer 67260856
MSc. Janis Melderis Leading radioelectronics engineer 67260856
MSc. Juris Veinbergs Leading radioelectronics engineer 67260856
Dr.phys. Alberts Kristins Head of laboratory; Senior researcher 67260856
  Pjotrs Kalinikovs Engineer 67260856

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Since establishment of the Semiconductors Physics Problems Laboratory, practical electronics specialists (Radioelectronics Group) are engaged in the creation of new, unique hardware, measuring instruments and equipment for scientific experiments and folk economy. Currently, the Laboratory of Electronic Engineering (LEE), in collaboration with other institute subdivisions and specialists continue these traditions. Over the last 10-15 years, the Laboratory has focused on the following key issues:

  • Development and experimental production of unique measuring and control equipment and systems:
    • Testing devices for testing the operation of high-voltage switches, automatic circuit breakers, power transformers;
    • determination of environmental parameters (temperature, lighting, humidity) and management in different objects;
    • Passes, access and alarm systems;
    • Custom software and control software.
  • Development of automatic control and control systems.

Over the past 5 years, development of new equipment and systems and improvement of the systems that have been developed earlier has continued. Including:

  • Designed in accordance with the ordersof various organizations (JSC “Latvijas Kuģniecība”, JSC “Latvijas Gāze”, „Vangaži Industrial Park” Ltd, “Vaide” Ltd., “Jaunrīgas attīstības uzņēmums” Ltd, ISSP, State JSC “Latvijas dzelzceļš”, etc.), computerized pass, access, control and signaling systems of different complexity and configuration, serving one or more buildings, car parks, gates and similar objects, have been manufactured and installed. The largest of the objects is the administration of SJSC„Latvijas dzelzceļš” on Gogoļa street 3 (over 2000 employees, about 200 offices under the alarm system).
  • Specially designed, manufactured and certified amusement equipment - pneumatic swing. The 6-meter-high swing is designed for one person, swinging for 3, 5, 10 or more minutes, 30, 45, 60 and 75 degrees of swing with the ability to move from one value to another during swinging. Stops automatically after the set time expires or after the buttonSTOP press. Particular attention is paid to ensuring safety.
  • According to the order of the University of Latvia Optometry Center, dozens of visitors' counting devices in the optics stores in Latvia and Lithuania have been developed, manufactured and installed. (Five hardware versions developed, produced, and installed on objects in accordance with special orders)
  • Working hours registration systems ("Nienhaus & Lotz Lettland" Ltd., "Godske Latvian Textile" Ltd., "VAIDE" Ltd., "FONONS" Ltd., "Flexoplastic" Ltd.).
  • Designed and developed automatic start-finish machine for solar powered machines and boat races parallel in 2 tracks (track length up to 8 m, but can also be another).
  • Two versions of the lototron control system have been developed for the needs of AlphaMedia Ltd.
  • Special attention is paid to the development, installation, maintenance and upgrading of the necessary equipment, devices and software for the ISSP UL.


  • Fonons Ltd
  • Riga Technical University
  • Latvian University of Agriculture
  • JSC "Augstsprieguma tīkls"
  • “Energoremonts Rīga” Ltd
  • “Augstceltne” Ltd
  • "ADI Kartes" Ltd
  • Loks Ltd


  • Competence Center ELIKO (Estonia)
  • Institute of Electronics, Tallinn University of Technology

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Векслер В. С., Приедэ Э. И., Кристин А. А., Карпавичюс И. А. Концентрация радиоуглерода в кольцах древесины поздне-плейстоценового возраста. В сб. “Экспериментальные методы исследования астрофизических и геофизических явлений“, Ленинград, Физико-технический институт АН СССР, 1988 г., стр. 138 - 143.

A.Ozols, J.Porins, A.Kristins and G.Ivanovs. Measurement of low repetition rate picosecond laser pulse parameters. Materials Science Forum Vols. 297-298 pp. 123-12 (1998)

A. Kristiņš, A. Zeļenkovs. Results of Skrunda RLS Activity Monitoring. LU CFI 15. zinātniskās konferences referātu tēzes, Rīga, 1999. g., 95. lpp.,

A.Kristiņš, D.Millers, A.Zelenkovs, S.Zelenkovs, V.Zolotarjovs. Iespēju izpēte nogrimušu mīnveidīgu objektu meklēšanai un klasificēšanai. LU CFI 22. zinātniskās konferences referātu tēzes, Rīga, 2006.g., 42. lpp.

D.Gusevs, I.Gvardina, A.Kristiņš, J.Melderis, J.Tībergs, J.Veinbergs, J.Zvirgzds. A soft-start device with three-phase control. 2007, Nr.3, p. 76. Latvian Journal of Physics and Technical Sciences 

A.Kristiņš. Monitoring of the environment temperature and relative humidity. The outlook “High Tech in Latvia 2008”. LTP and RTU p.  33.

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