ห้องปฏิบัติการความต้านทาน

Introduction

The NIMT Resistance laboratory maintains national standards for Resistance measurement and support calibration in resistance field. The laboratory can support in resistance measurement from 100 mW to 10 TW. Up to date, there are 3 systems : Primary system (Quantum Hall Resistance : QHR and Accu bridge), Secondary system (Standard resistors group, Standard resistors, Automatic resistance bridge and Automatic dual source bridge) and Working Standard Level (Decade resistors, High current standard resistors, High voltage standard resistors, Micro ohmmeter and High resistance meter) for support the customers.

Calibration services

Staff

ดร.ชัยวัฒน์ เจษฎาจินต์

ตำแหน่ง : นักมาตรวิทยาชำนาญการพิเศษ
Email : chaiwat@nimt.or.th
Tel. : 02-5775100 ต่อ 1219

Area of research/expertise
- Electrical Metrology and Resistance Measurements
- Quantum Hall Resistance (QHR)

ดร.ชัชวาล คุรุภากรณ์

ตำแหน่ง : นักมาตรวิทยาชำนาญการพิเศษ
Email : chatchaval@nimt.or.th
Tel. : 02-5775100 ต่อ 1253

Area of research/expertise
- Resistance Standard (Quantum Hall Resistance)
- High voltage, and high current metrology
- Partial Discharge
- Impedance measurement

นางเนตรนพิศ คุ้มทุกทิศ

ตำแหน่ง : นักมาตรวิทยาชำนาญการพิเศษ
Email : natenapit@nimt.or.th
Tel. : 02-5775100 ต่อ 1240

Area of research/expertise
- DC Resistance Measurement
- Technical assessor for ISO/IEC 17025 accreditation in area of Electrical Metrology.

นายสุรเชษฐ เพิ่มฉลาด

ตำแหน่ง : นักมาตรวิทยาชำนาญการ
Email : surached@nimt.or.th
Tel. : 02-5775100 ต่อ 1253

Area of research/expertise
- Calibration in Electrical Laboratory (DC, AC, Resistance Low Frequency Measurement)

ดร.จุฑารัตน์ ทานะรมณ์

ตำแหน่ง : นักมาตรวิทยาชำนาญการ
Email : jutarat@nimt.or.th
Tel. : 02-5775100 ต่อ 1234

Area of research/expertise
Quantum Metrology
- Single electron tunneling
- Josephson junction Voltage Standard
- DC&AC Quantum Hall Resistance Standard
- Quantum Impedance Standard

นางสาวนพวรรณ ทิพกานนท์

ตำแหน่ง : ผู้ช่วยนักวิจัย
Email : noppawant@nimt.or.th
Tel. : 02-5775100 ต่อ 1254

Area of research/expertise
- DC Resistance Source  (Low Values)
- DC Resistance Source  (High Values)

Related publications/articles

Selected publications

  1. Nattapong Phanthuna and Chaiwat Jassadajin, “Shielding Effect and Guarding in High Resistance Measurement”, Applied Mechanics and Materials (Volume 879), page 196-200, March 2018; https://www.scientific.net/AMM.879.196
  2. Nattapong Phanthuna and Chaiwat Jassadajin, “A Study on temperature properties of different types of fixed resistor", Applied Mechanics and Materials (Volume 866), page 392-397, June 2017; https://www.scientific.net/AMM.866.392
  3. B Rolland, N Fletcher, N Khumthukthitand C Jassadajin, “Bilateral comparison of 1 Ω and 10 kΩ standards (ongoing BIPM key comparisons BIPM.EM-K13.a and 13.b) between the NIMT (Thailand) and the BIPM”, Metrologia (Volume 64), January 2017; https://iopscience.iop.org/article/10.1088/0026-1394/54/1A/01002
  4. C. Jassadajin , C. Kurupakorn , N. Khumthukthit , A. Pruksanubal, “Noise Reduction of Fractional Source in Cryogenic Current Comparator Bridge”,  International Journal of Engineering and Technology, Vol.5(5):4185-4192,October 2013, https://www.researchgate.net/publication/289364398_Noise_Reduction_of_Fractional_Source_in_Cryogenic_Current_Comparator_Bridge
  5. C. Jassadajin, N. Chookunhom, A. Pruksanubal, “Investigation on current comparator with electrical shielding to improve the measured values”, International Conference on ECTI-CON 2011, 17-19 May 2011; https://ieeexplore.ieee.org/document/5947913
  6. C. Kurupakorn, C. Jassadajin, A. Charoensook, “On the NIMT quantum Hall resistance standard”, CPEM 2010, 13-18 June 2010, https://ieeexplore.ieee.org/document/5545219
  7. Ajchara Charoensook, Chaiwat Jassadajin, Henry Chen and Brian Ricketts, “SUPPLEMENTARY COMPARISON APMP.EM-S6: Bilateral supplementary comparison of resistance”, Metrologia (Volume 41), January 2004; https://iopscience.iop.org/article/10.1088/0026-1394/41/1A/01005