TC3 - Measurement of Force, Mass, Torque, and Gravity - Workshops & Round Table Discussions

TC3 Workshops

21st IMEKO TC3 Conference in Pattaya

Date and time: 01:30 PM - 05:00 PM, Wednesday, Nov. 24, 2010
Title: Now and Future of Small Forces
Chairman: Dr. Yon-Kyu Park (KRISS)

  1. Mr. Febo Menelao (Hardness and Layer Thickness Measurement Technique, PTB, Germany)
    "Micro and Nanoforce metrology at PTB"
  2. Mr. Christopher Jones (Engineering Measurement, Industry & Innovation Division, NPL, UK)
    "Low Force Metrology at the National Physical Laboratory, UK"
  3. Dr. Min-Seok Kim (Center for Mass and related Quantities, KRISS, Korea)
    "Current status and perspective on low force metrology in Korea"
  4. Dr. Sheau-Shi Pan (Mechanical Measurement laboratory, ITRI-CMS, Taiwan)
    "The activities of micro force measurement below 10 mN in Center for Measurement Standards"
  5. Dr. Jae-Hyuk Choi (Center for Emerging Measurement Standards, KRISS, Korea)
    "Measurement, back-action, and future standard in ultra-small force metrology"

XVIII IMEKO World Congress 2006 in Rio de Janeiro

Date and time: 10:40 AM - 12:20 PM, Tuesday, Sept. 19, 2006
Title: Force and torque metrology for the sustainable
development in Latin American industries

Chairman: Dr. Dae-Im Kang (KRISS)

  1. Dr. Dae-Im Kang (KRISS)
    "Large force standards and dissemination by using build-up system"
  2. Dr. Diedert Peschel (PTB)
    "Torque standards and dissemination: Torque application for industries"
  3. Dr. Rolf Kumme (PTB)
    "Recent issues in the calibration of material testing machines"


TC3 Round Table discussions

23rd IMEKO TC3 Conference in Helsinki

Date and time: 1:00 PM - 2:00 PM, Wednesday, May 31, 2017
Title: Digitalization; the content of the digital value, is it reliable?
Chairmen: Dr. Rolf Kumme (PTB), G. P. Ripper (INMETRO)

  1. Aimo Pusa (MIKES-VTT, Finland)
    "Digitalization - the correctness of a digital value?"
  2. Dr. André Schäfer (HBM, Germany)
    "Constantly turning digital - Building a bridge into the future"
  3. Dr. Rolf Kumme (PTB, Germany)
    "Metrology for Digitalisation"
    "Outlook and example for Digitization: Windforce – Testbed Industry 4.0"

 21st IMEKO TC3 Conference in Pattaya

Date and time: 10:00 AM - 12:30 PM, Wednesday, Nov. 24, 2010
Title: Multicomponent measurements to improve the traceability in the force chain
Chairmen: Dr. Carlo Ferrero (INRiM), Dr. Rolf Kumme (PTB)

  1. Dr. Carlo Ferrero (INRiM, Italy)
    "Round table on Mutlicomponent measurement to improve the traceability in the force chain"
  2. Dr. Carlo Ferrero (INRiM, Italy)
    "Development and Calibration of the INRiM composite 6 6-components dynamometers and the results of 20 years of intercomparisons"
  3. Philippe Averlant (LNE, France)
    "Calibration of Strain Cylinders for Compression Testing Machine at LNE"
  4. Dr. Yon-Kyu Park (KRISS, Korea)
    "Evaluation of Force Standard Machines by using Build-up System"
  5. Dr. Rolf Kumme (PTB, Germany)
    "Calibration of a force vector sensor with a multicomponent calibration system"

XVIII IMEKO World Congress 2006 in Rio de Janeiro

Date and time: 2:00 PM - 4:00 PM, Tuesday, Sept. 19, 2006
Title: Small force measurement down to pico-Newton and application
Chairmen: Dr. Jon Pratt (NIST) & Dr. Jae-Hyuk Choi (KRISS)


XVII IMEKO World Congress 2003 in Dubrovnik

Date and time: June 24, 2003, 16:30 h -18:00 h.
Topic: Traceability in Torque Measurements
Moderators: Dr. Amritlal Sawla and Dr. Diedert Peschel.
The presentation for the topics 1 and 2 can be downloaded.

The aim of the Round Table discussion meeting is to cover the specific aspects of the traceability in torque measurements on the basis of three oral presentations on the following topics. The content of each topic will be introduced by an expert in a five minutes speech. About 25 minutes are then planed for the discussions on each presentation.

TOP 1: About the influences on the calibration results obtained on calibration systems with supported or unsupported beams
Diedert Peschel, Dr.-Ing., Head of Torque laboratory at PTB

Important specific aspects in such applications are among others: 1. In case of using supported beams and adaptation of the test piece with couplings with low stiffness for bending the calibration will realised under pure torque conditions. 2. Unsupported beams generate additionally bending moment and side force so that the calibration conditions are very different from pure torque conditions.

TOP 2: Discussion on calibration results for alternating torque in comparison with single cw and acw torque calibrations (comparison with force calibration)
Dirk Röske, Dr.-Ing., Researcher at PTB's Torque laboratory

Important specific aspects in such applications are among others: 1. Very often the effect of mechanical remanence causes the predominant influence on the calibration result for alternating torque especially for low torque values. This effect can be calculated from single cw and acw calibration curves knowing the corresponding zero signals. 2. An additional uncertainty contribution must be taken into account when a transducer is applied in alternating torque measurements without knowledge about it's load history.

TOP 3: Aspects of traceability of torque transducers in power test stands (influence of speed of rotation, on-site calibration)
Georg Wegener, Dr.-Ing., Product Manager HBM/Germany

Important specific aspects in such applications are among others: 1. The special ambient conditions: the speed of rotation of the torque transducer, mechanical pre-stress from mounting the torque transducer, temperature conditions, EMC conditions. 2. Special concepts when on-site calibration is considered.