Report of the SIM Electricity and Magnetism

Metrology Working Group

July 18, 2002

1\. Updated Directory

[Below is an updated list of the E&M MWG members:]{.underline}

Ricardo Garcia

Instituto Nacional de Tecnologia Industrial CEFIS

Parque Tecnológico Miguelete

Av. Gral Paz e/Albarellos y Av. De los Constituyentes

San Martin

Pcia. De Buenos Aries,

Argentina

Email: rigarcia@inti.gov.ar

Gregory Amaral Kyriazis

INMETRO

DIMCI/DIELE - Prédio 2

Av. Nossa Senhora das Graças, 50

25250-020 Xerém - Duque de Caxias - RJ

Brazil

Email: gakyriazis@inmetro.gov.br

Eddy So

National Research Council Canada

Institute for National Measurement Standards

Montreal Road

Ottawa

Ontario K1A

CANADA

Email: Eddy.So@nrc.ca

Harold Sánchez

Instituto Costarricense de Electricidad (ICE)

ICE San Pedro

Metrology Laboratory, Apartado 10032

San José

Costa Rica

Email: hsanchez@ice.co.cr

Marcelo Gómez Cobos

Av. Los Pinos s/n. y

6 de Diciembre BEC-1

Quito

ECUADOR

Email:gomez@uio.telconet.net

Marcelo Murillo\*

Av. Los Pinos s/n. y

6 de Diciembre BEC-1

Quito

ECUADOR

Desmond Bennett

Jamaica Bureau of Standards

6 Winchester Road

Kingston 10

Kingston

Jamaica

Email: DBennett@jbs.org.jm

David Avilés

Electromagnetic Measurement Division

Centro Nacional de Metrología (CENAM)

km 4,5 carretera a los Cués

el Marqués, C.P. 76900

Querétaro

Mexico

Email: caviles@cenam.mx

Felipé Hérnadez

Electromagnetic Measurement Division

Centro Nacional de Metrología (CENAM)

km 4,5 carretera a los Cués

el Marqués, C.P. 76900

Querétaro

Mexico

Email: fhernand@cenam.mx

Ever Cabrera

Instituto Nacional de Technogía y Normalización(INTN)

Av. General Artigas y General Roa

Asunción

Paraguay

Email:evercabrera@ing.una.py, evercabrera@yahoo.es, intn@intn.gov.py

Steve Gittens

Trinidad and Tobago Bureau of Standards

P. O. Box 467

Port of Spain

Trinidad

Email: ttbs@carib-link.net

Daniel Slomovitz

Laboratorio de UTE

Paraguay 2385,

Montevideo 11800

URUGUAY

Email: d.slomovitz@ieee.org

Barry A. Bell

Electricity Division

100 Bureau Drive, Stop 8110

National Institute of Standards and Technology

Gaithersburg, MD 20899

USA

Email: barry.bell@nist.gov

Jim Olthoff

Electricity Division

100 Bureau Drive, Stop 8110

National Institute of Standards and Technology

Gaithersburg, MD 20899

USA

Email: james.olthoff@nist.gov

**2. Comparison Activities**

The status and future plans for the SIM E&M are summarized as follows:

[SIM 1.1]{.underline} The results of this comparison using DMMs (piloted
by NIST) were reported at the SEMETRO 2000 without identifying the
results of the specific laboratories. However, the labs have now agreed
to release the identifications, and Nile Oldham is in the process of
submitting the final draft report to the SIM Technical Committee. The
results will be registered in the NIST ICDB.

[SIM 1.2]{.underline} Originally started as a DC Voltage comparison of
those labs having Josephson Voltage Standard (JVS) systems, it was
decided to split this comparison into two comparisons: [SIM
1.2.1]{.underline} DC Voltage comparison using a portable JVS traveling
standard, looking for measurement uncertainties at parts in 10^8^ level,
and [SIM 1.2.2]{.underline} DC Voltage comparison using a Zener-based
traveling standard, looking for measurement uncertainties at parts in
10^7^ level. David Aviles at CENAM will continue to take the lead in
this effort.

[SIM 1.3]{.underline} Planned as a Capacitance comparison using a 10 pF
fused silica traveling standard with best uncertainties attainable at
1592 Hz (piloted by NIST), this comparison is now split into two
comparisons: [SIM 1.3.1]{.underline} Capacitance with 10 and 100 pF
fused silica capacitors as traveling standards measured at 1592 Hz, 1000
Hz, and 400 Hz using CIPM protocols and looking for best uncertainties,
and [SIM 1.3.2]{.underline} Capacitance using a 1000 pF gas dielectric
capacitor as the traveling standard measured at 1000 Hz, where various
uncertainties are acceptable. Harold Sanchez (ICE) has agreed to provide
the logistics for these comparisons, with technical support provided by
NIST.

[SIM 1.4]{.underline} Originally referred to as a SIM comparison on AC
Power, this comparison of Electric Energy at 120 V, 5 A, 50 Hz and 60
Hz, 1.0 and 0.5 power factors will begin in July 2002. One of the
traveling standards (a commercial electronic watthour meter) will be
transferred from the pilot laboratory (NIST) to ICE in Costa Rica. In
2000, a majority of SIM laboratories decided that an energy rather than
power comparison would be most useful, particularly since five SIM NMIs
had participated in the CCEM-K5 International Comparison of 50/60 Hz
Power (1996-2000). A draft report on K5 can be found at the (password
accessible) web site:
[http://www.eeel.nist.gov/SIM/CCEM/k5-draft_b-6-20-02a.doc]{.underline}.
These results will be registered in the BIPM KCDB.

[SIM 1.5]{.underline} This comparison will essentially be a repeat of
SIM 1.1, piloted by NIST, but it has not started yet. It was agreed that
there would be a reduced number of official test points.

[SIM 1.6]{.underline} This bilateral AC-DC Difference comparison between
NIST and CENAM is now completed. Draft A of the report is in
preparation.

[SIM 1.7]{.underline} Another bilateral comparison between NIST and
CENAM, this one on DC Resistance, comparing a 10 kilohm traveling
standard with Quantum Hall Resistance (QHR) systems, has been postponed.
Rene Carranza will provide a status report.

*Three new comparisons are proposed as follows:*

[SIM 1.8]{.underline} AC Power with NRC as the pilot lab. It will be for
600 V, 100 A, 50/60/63 Hz, P.F. 1.0, 0.5 (lead and lag), and 0. This
comparison will use the same protocol as used for SIM 1.4.

[SIM 1.9]{.underline} AC-DC Transfer, V & I with CENAM as the pilot lab.
Traveling standards would be a Fluke 792A thermal transfer standard and
Fluke A40 and A40A current shunts. It was proposed that this comparison
would match the points used for the CCEM-K6a.

[SIM 1.10]{.underline} High Voltage DC with NRC as the pilot lab. A DC
HV divider would be used as the traveling standard with 100 kV/10 V
ratio.

**3. Meetings, Courses, and Other Relevant Activities**

A meeting of the SIM E&M MWG was held on June 22, 2002 at the NRC
laboratories in Ottawa, Canada (the previous meeting of this MWG was
held on May 29, 2001 at CENAM in Querétaro, Mexico). A report of this
meeting has been drafted and will be sent to the Chair of the SIM
Technical Committee. Items from that report are contained in this report
as well.

In a June 12 e-mail message from Steve Carpenter to E&M Chair, Barry
Bell, a short course on laboratory accreditation for the E&M MWG is an
activity that can be arranged by the Working Group Chair. The new Chair,
Harold Sanchez, will be following up on this activity.

Nile Oldham has set up a SIM E&M MWG (password accessible) web site. He
has also created a bulletin board for improving the Group's
communications. The temporary URL of the Metrology Working Group forum
(bulletin board) is:
[http://www.velocecorp.net/wwwboard/wwwboard.html.]{.underline}

He will try to get it moved to the NIST web site with password
accessibility in the next few weeks. The NIST firewall has made the
SIMnet and related web sites more difficult to access, but there is hope
that this situation will improve.

**4. Status of SIM CMCs**

According to the International Comparisons Database maintained at NIST
([http://icdb.nist.gov/Update.asp)]{.underline}, since July of 2001 the
only SIM CMC addition is for an update on Acoustics & Vibration for NRC,
Canada in April 30, 2002.

Also, according to the ICDB, Antigua and Barbuda, Bahamas, Barbados,
Belize, Bolivia, Chile, Colombia, Costa Rica, Dominica, Dominican
Republic, Ecuador, El Salvador, Grenada, Guatemala, Haiti, Honduras,
Jamaica, Nicaragua, Panama, Paraguay, Peru, Saint Kitts and Nevis, Saint
Lucia, Saint Vincent and the Grenadines, Suriname, Trinidad and Tobago,
and Venezuela still do not have published documents for Electricity and
Magnetism (which means that only 7 of the 34 SIM countries do have
these). There may be CMCs under review, but access to these was not
available.

**5. Reviews of CMCs from other RMOs**

The CMC files for India and Thailand, with comments by SIM E&M MWG, were
sent to the Chair of the SIM Technical Committee on July 5, 2002, to
then be sent the Executive Secretary to the JCRB-BIPM.

**6. General Comments**

Concern was expressed with regard to the the stringency of the NPL-India
CMC review, but the consensus of the Group was to try to be as complete
as possible. It was agreed that with fewer of these CMCs now under
review, this was a worthy goal.

Respectfully submitted,

Barry A. Bell

Chair, SIM E&M MWG, June 2001 to June 2002

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### Acronyms

BIPM - Bureau International des Poids et Mesures

CCEM Consultative Committee on Electricity and Magnetism

CENAM - Centro Nacional de Metrología

CMC - Calibration Measurement Capabilities

CMFT -- Centro de Metrologia de La Fuerza Terrestre, Ecuador

CPEM -- Conference on Precision Electromagnetic Measurements

DMM -- Digital Multimeter

ICE - Instituto Costarricense de Electricidad, Costa Rica

INMETRO -- Instituto Nacional de Metrologia, Normalizção e Qualidade
Industrial, Brazil

INTI Instituto Nacional de Technología

INTN -- Instituto Nacional de Technologia y Normalizacion

JBS -- Jamaica Bureau of Standards, Jamaica

LABUTE - Laboratorio de UTE

NIST - National Institute of Standards and Technology, USA

NRC - National Research Council, Canada

OAS -- Organization of American States

QHR -- quantized Hall resistance

SBM - Brazilian Society of Metrology

SIM -- Inter-American Metrology System

TTBS - Trinidad and Tobago Bureau of Standards

### Appendix

Ricardo Garcia

Instituto Nacional de Tecnologia Industrial CEFIS

Parque Tecnológico Miguelete

Av. Gral Paz e/Albarellos y Av. De los Constituyentes

San Martin

Pcia. De Buenos Aries,

Argentina

Email: rigarcia@inti.gov.ar

Gregory Amaral Kyriazis

INMETRO

DIMCI/DIELE - Prédio 2

Av. Nossa Senhora das Graças, 50

25250-020 Xerém - Duque de Caxias - RJ

Brazil

Email: gakyriazis@inmetro.gov.br

Eddy So

National Research Council Canada

Institute for National Measurement Standards

Montreal Road

Ottawa

Ontario K1A

CANADA

Email: Eddy.So@nrc.ca

Harold Sánchez

Instituto Costarricense de Electricidad (ICE)

ICE San Pedro

Metrology Laboratory, Apartado 10032

San José

Costa Rica

Email: hsanchez@ice.co.cr

Marcelo Gómez Cobos

Av. Los Pinos s/n. y

6 de Diciembre BEC-1

Quito

ECUADOR

Email:gomez@uio.telconet.net

Marcelo Murillo\*

Av. Los Pinos s/n. y

6 de Diciembre BEC-1

Quito

ECUADOR

Desmond Bennett

Jamaica Bureau of Standards

6 Winchester Road

Kingston 10

Kingston

Jamaica

Email: DBennett@jbs.org.jm

David Avilés

Electromagnetic Measurement Division

Centro Nacional de Metrología (CENAM)

km 4,5 carretera a los Cués

el Marqués, C.P. 76900

Querétaro

Mexico

Email: caviles@cenam.mx

Felipé Hérnadez

Electromagnetic Measurement Division

Centro Nacional de Metrología (CENAM)

km 4,5 carretera a los Cués

el Marqués, C.P. 76900

Querétaro

Mexico

Email: fhernand@cenam.mx

Ever Cabrera

Instituto Nacional de Technogía y Normalización(INTN)

Av. General Artigas y General Roa

Asunción

Paraguay

Email:evercabrera@ing.una.py, evercabrera@yahoo.es, intn@intn.gov.py

Steve Gittens

Trinidad and Tobago Bureau of Standards

P. O. Box 467

Port of Spain

Trinidad

Email: ttbs@carib-link.net

Daniel Slomovitz

Laboratorio de UTE

Paraguay 2385,

Montevideo 11800

URUGUAY

Email: d.slomovitz@ieee.org

Barry A. Bell

Electricity Division

100 Bureau Drive, Stop 8110

National Institute of Standards and Technology

Gaithersburg, MD 20899

USA

Email: barry.bell@nist.gov

Jim Olthoff

Electricity Division

100 Bureau Drive, Stop 8110

National Institute of Standards and Technology

Gaithersburg, MD 20899

USA

Email: james.olthoff@nist.gov