Dr. Piyaphat Phoonthong, Senior Metrologist from NIMT, participated in the Asian Conference on Trapped Ions 2026, where he presented his research work. The conference was held at the National University of Singapore from 20 to 22 April 2026 in Singapore.

The ACTI 2026 conference, organized by the Centre for Quantum Technologies, brought together researchers and experts in the field of trapped ions and quantum technologies across Asia and beyond.

During the event, Dr. Piyaphat delivered his presentation and engaged in scientific discussions with international peers, fostering potential research collaborations and knowledge exchange in advanced metrology and quantum science.

His participation in this conference reflects NIMT’s continued commitment to strengthening international collaboration and contributing to cutting-edge research in emerging fields relevant to precision measurement and quantum technologies.

Ms. Charuayrat Yaokulbodee, Head of the Thermometry and Optical Metrology Department and Quality Manager, together with Ms. Thanakporn Nontachart, from NIMT, participated in the 2nd Workshop on the Development of Asia Pacific Metrology Programme (APMP) DEC Strategic Planning 2027–2029.

The workshop was held from 2–3 April 2026 in Indonesia and brought together representatives from member economies to collaboratively develop the strategic direction of the APMP Developing Economies’ Committee (DEC) for the period 2027–2029.

The main objectives of the workshop were to review the current strategic framework, identify key priorities and challenges faced by developing economies, and formulate actionable plans to strengthen capacity building, technical cooperation, and sustainable development in metrology across the Asia-Pacific region.

During the workshop, participants engaged in discussions and group activities focusing on enhancing regional collaboration, improving knowledge transfer, and aligning DEC initiatives with global trends and emerging needs in metrology. The outcomes of this workshop will contribute to shaping a robust and forward-looking strategic plan to support developing economies within APMP.

The participation of NIMT in this workshop reflects its continued commitment to international collaboration and its active role in supporting the advancement of metrology in the region.

Mrs. Surat Leeudomwong, Group Leader of Acoustics and Vibration from NIMT, was invited to serve as a technical expert for a peer review of acoustics at CSIR-National Physical Laboratory (CSIR-NPL), held during 2–3 April 2026 in New Delhi, India.

The peer review covered several key calibration capabilities in the field of acoustics, including primary microphone calibration, working standard microphone calibration, sound calibrator calibration, multi-frequency sound calibrator calibration, and sound level analyzer calibration. These activities support CSIR-NPL’s efforts in maintaining and submitting Calibration and Measurement Capabilities (CMCs) in accordance with international standards.

Her role as a peer reviewer contributed to strengthening technical confidence, ensuring compliance with international metrology requirements, and promoting mutual recognition among National Metrology Institutes (NMIs). The engagement also fostered collaboration and knowledge exchange between NIMT and CSIR-NPL in the field of acoustics and vibration metrology.

Dr. Jariya Buajarern, Metrology Expert, and Dr. Sivinee Sawatdiaree, Research, Development and Innovation (RDI) Manager, from the National Institute of Metrology (Thailand) (NIMT), participated in the Joint Visioning Workshop on ASEAN Metrology between ACCSQ WG3 and the Expert Group on Metrology (EGM). The workshop was held from 30–31 March 2026 in Jakarta, Republic of Indonesia.

The workshop aimed to develop a shared ASEAN Metrology Vision and strengthen collaboration between Working Group 3 (Legal Metrology) and the EGM. Discussions focused on identifying synergies between the two groups, aligning post-2025 strategies, and enhancing the role of metrology in supporting regional economic integration, digital transformation, and sustainability goals.

Key highlights from the workshop included the concept of “holistic metrology,” emphasizing that metrology extends beyond traditional classifications of scientific, industrial, and legal metrology. Participants recognized its critical role in supporting economic development, innovation, environmental sustainability, and emerging sectors such as digital technologies and electric vehicles.

The workshop also addressed current structural limitations, noting that existing frameworks do not fully cover the needs of rapidly evolving industries and innovation-driven sectors. Participants emphasized the importance of bridging gaps between regulatory (top-down) and market-driven (bottom-up) approaches, while balancing national sovereignty with regional harmonization to facilitate trade and build mutual trust.

Through a series of interactive group exercises, participants explored how metrology can better support ASEAN priority sectors, strengthen Quality Infrastructure (QI), and contribute to broader regional objectives. Discussions also highlighted the need for closer integration between metrology, standards, accreditation, and conformity assessment systems.

The workshop concluded with a shared direction for the ASEAN Metrology Vision, which aims to establish an integrated and dynamic metrology ecosystem that supports fair trade, consumer protection, and innovation across the region.

NIMT’s participation in this workshop reflects its continued commitment to advancing regional cooperation in metrology and contributing to the development of a robust and future-ready ASEAN metrology system.

On 23 March 2026, Pol.Lt.Gen. Pornchai Suteerakune, NIMT Director, Mr Anusorn Tonmueanwai, NIMT Deputy Director together with Dr. Sivinee Sawatdiaree, Dr. Monthol Homklintian, and teams, welcomed Mr. Kohei Isobe, representative of the JICA Expert Teams (JET), for a discussion on the Phase 2 project for capacity building and promotion of the utilization of the Thailand Integrated GNSS Reference Station Network (TIGORS2).

Mr. Kohei Isobe presented policies and planned activities aimed at enhancing the utilization of GNSS CORS data, improving data quality, and strengthening calibration and verification of GNSS equipment in Thailand. The discussion also covered approaches for knowledge and experience transfer from Japan to Thai personnel. The working team expressed its intention for NIMT to serve as the leading national authority for the calibration system and certification of GNSS equipment used in Thailand.

Dr. Kittiya Shearman, Head of the Chemical Metrology and Biometry Department from the National Institute of Metrology (Thailand) (NIMT), undertook an international mission to serve as a technical consultant in the field of chemical metrology during 15–18 March 2026 at the Bangladesh Standards and Testing Institution (BSTI). The mission was carried out in collaboration with the British Standards Institution (BSI) to support the development of the National Metrology Laboratory (NML) of BSTI.

The activities were structured to combine both theoretical and practical engagement. On 15–16 March, classroom training sessions on chemical metrology were conducted, providing participants with fundamental knowledge and practical understanding. On 17 March, a consultation meeting was held with senior officials of NML-BSTI to discuss technical challenges and future development directions. The mission concluded on 18 March with a laboratory visit at BSTI, allowing for on-site assessment and targeted technical recommendations.

During the program, Dr. Kittiya delivered a series of technical lectures and training sessions covering key topics, including the following:

– Metrology in Chemistry

– Metrological Traceability in Chemistry

– Method Validation

– Measurement Uncertainty

– ISO 17034 and related standards

In addition, the program provided a platform for knowledge exchange, enabling BSTI staff and participants to gain practical insights and international best practices in chemical metrology. Dr. Kittiya also offered expert guidance and recommendations to support the enhancement of BSTI’s measurement capabilities and laboratory performance.

This engagement reflects NIMT’s ongoing commitment to international collaboration and capacity building in metrology and highlights the strong partnership among NIMT, BSTI, and BSI in advancing global measurement standards and quality infrastructure.

Dr. Padipat Wongthep and Dr. Theerarak Chinarak, from NIMT, undertook a technical mission to Europe from 16–19 March 2026 to strengthen international collaboration in the field of high-pressure gas flow measurement.

During the visit, they held technical discussions and exchanged expertise with FORCE Technology in Denmark, as well as VSL and Euroloop in the Netherlands. The discussions focused on advancing measurement techniques and ensuring that ongoing work—particularly under the high-pressure gas flow project in collaboration with PTTLNG—aligns with international standards and best practices.

The mission provided valuable insights into advanced measurement systems and practices adopted in Europe, while also fostering opportunities for future cooperation between NIMT and its international counterparts. The knowledge gained is expected to contribute to improving the efficiency and accuracy of high-pressure gas flow measurement systems in Thailand.

Mr. Kornpatsitt Promasa, from NIMT, visited the Korea Research Institute of Standards and Science (KRISS), Republic of Korea, to conduct research on “Noise Figure Measurement” from 10–17 March 2026.

The primary objective of this visit was to collaborate with KRISS experts and enhance technical knowledge in noise measurement, RF systems, and advanced metrology techniques. During the research stay, Mr. Kornpatsitt engaged in discussions and experimental work with leading researchers, including Dr. Dong-Joon Lee, Dr. Tae Weon Kang, and Dr. Jae-Youg Kwon.

A key focus of the research was the development and application of electro-fiber optic probes for measuring electric and electromagnetic fields. Two types of probes were studied: the round-trip probe and the fabricated electro-optic (EO) sensor. These sensors are designed for high durability, capable of withstanding electric fields up to approximately 10 kW, and can operate over a wide frequency range. Their applications include measurements in TEM cells, near-to-far-field projections of horn antennas, and advanced antenna characterization systems.

In addition, Mr. Kornpatsitt studied the calibration and measurement of noise figure (NF), an essential parameter used to evaluate the performance of RF and electronic devices. The work involved the Y-factor method using calibrated noise sources to determine the Excess Noise Ratio (ENR) and noise temperature. Practical measurements were carried out on low noise amplifiers (LNAs), where both gain and noise figure were evaluated using KRISS standard systems.

The visit also provided exposure to advanced RF metrology infrastructure at KRISS, including:

– Microcalorimeter systems serving as primary standards for RF power measurements (10 MHz to 50 GHz),

– Comparison-based calibration systems for power sensors,

– D-band waveguide impedance standards for high-frequency applications (110–170 GHz),

– Robotic measurement systems for next-generation communication technologies, including millimeter-wave and sub-terahertz measurements.

Furthermore, innovative applications such as 5G antenna measurements (Sub-6 GHz), near-field imaging systems, and studies on human body blockage effects at sub-terahertz frequencies were explored.

This research visit significantly enhanced knowledge and technical capabilities in fiber optic sensing, noise measurement, RF power calibration, and advanced antenna measurement techniques. As a follow-up, NIMT plans to implement hybrid comparison methods for two-port amplifier measurements, focusing on gain and noise figure.

The collaboration between NIMT and KRISS continues to strengthen international cooperation in metrology and supports the advancement of measurement science for emerging communication technologies.

Mr. Anusorn Tonmueanwai, Deputy Director of NIMT, together with the metrologists of the Dimensional Metrology Department, warmly welcomed a delegation from Kyushu Institute of Technology (Kyutech) and King Mongkut’s University of Technology North Bangkok (KMUTNB) on 13 March 2026 at NIMT.

The visiting delegation was led by Emeritus Prof. Dr. Keiichi Kimura, Assoc. Prof. Dr. Panart Khajornrungruang, and Dr. Thitipat Permpatdechakul from Kyutech, along with Asst. Prof. Dr. Aran Blattler, Asst. Prof. Dr. Teppakorn Sittiwanchai, and Asst. Prof. Dr. Natthapon Bun-a-thuek from KMUTNB. The purpose of the visit was to bring Kyutech students to explore and gain first-hand experience in advanced dimensional metrology laboratories at NIMT.

During the visit, the students were introduced to NIMT’s capabilities in dimensional measurement, including primary standards for length, form, and surface metrology. The activity provided a valuable opportunity for academic exchange and helped strengthen collaboration between NIMT and partner universities in advancing metrology education and research.