Results for: Electricity and Magnetism bulgeria

CMC Quick search Filters close;

60 results

In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a² + b²]^1/2
Unless otherwise stated the expanded uncertainties given below correspond to k = 2 (at a 95 % level of confidence)

Bulgaria, BIM (Bulgarian Institute of Metrology)

High voltage and current , High AC current: current transformer phase displacement : -20 mrad to 20 mrad

Current transformer

Absolute expanded uncertainty : 9.0E-2 mrad

Comparison with standard current transformer

Primary : 0.1 A to 5 A

Secondary : 1 A or 5 A

Frequency : 50 Hz

Approved on 06 August 2013

Institute service identifier : 68

CMC ID : EURAMET-EM-BG-00000DTQ-1

High voltage and current , High AC voltage: voltage transformer ratio error : -0.2 % to 0.2 %

Voltage transformer

Absolute expanded uncertainty : 9.0E-3 %

Comparison with reference standard

Primary voltage : 2 kV to 100 kV

Secondary voltage : 15 V to 120 V

Frequency : 50 Hz

Approved on 06 August 2013

Institute service identifier : 95

CMC ID : EURAMET-EM-BG-00000DTM-1

DC resistance , DC resistance standards and sources: multiple ranges : 1 Ω to 1.00E8 Ω

Multifunction calibrator: R

Relative expanded uncertainty : 1 µΩ/Ω to 5.5E1 µΩ/Ω

Uncertainty table

{"row_1":{"col_1":"","col_2":"Expanded uncertainty"},"row_2":{"col_1":"1 ohm","col_2":"1"},"row_3":{"col_1":"1.9 ohm","col_2":"1"},"row_4":{"col_1":"10 ohm","col_2":"1"},"row_5":{"col_1":"19 ohm","col_2":"1"},"row_6":{"col_1":"100 ohm","col_2":"1"},"row_7":{"col_1":"190 ohm","col_2":"1"},"row_8":{"col_1":"1 kohm","col_2":"1.5"},"row_9":{"col_1":"1.9 ohm","col_2":"1.5"},"row_10":{"col_1":"10 kohm","col_2":"2.1"},"row_11":{"col_1":"19 kohm","col_2":"2.1"},"row_12":{"col_1":"100 kohm","col_2":"2.4"},"row_13":{"col_1":"190 kohm","col_2":"2.4"},"row_14":{"col_1":"1 Mohm","col_2":"4.5"},"row_15":{"col_1":"19 Mohm","col_2":"4.5"},"row_16":{"col_1":"10 Mohm","col_2":"6.0"},"row_17":{"col_1":"19 Mohm","col_2":"6.0"},"row_18":{"col_1":"100 Mohm","col_2":"55"}}

The expanded uncertainties given in this table are expressed in µΩ/Ω

Comparison by means of current comparator bridge and automated high resistance bridge

R : decade values and divisible by 1.9

Approved on 06 August 2013

Institute service identifier : 79

CMC ID : EURAMET-EM-BG-00000DTV-1

Impedance (up to the MHz range) , Capacitance for dielectric capacitors : 0.01 µF to 1 µF

Fixed capacitor

Relative expanded uncertainty : 2.0E1 µF/F to 5.0E1 µF/F

Uncertainty table

{"row_1":{"col_1":"","col_2":"Expanded uncertainty in µF/F"},"row_2":{"col_1":"10 nF to 100 nF","col_2":"20 to 30"},"row_3":{"col_1":"200 nF to 1 µF","col_2":"50"}}

Comparison with capacitance bridge

Frequency : 1 kHz

Uncertainty is not varying linearly within the range.

Approved on 07 February 2019

Institute service identifier : 25

CMC ID : EURAMET-EM-BG-00000DU3-1

DC resistance , DC resistance meters: low values : 1.00E-4 Ω to 1 Ω

Micro-ohmmeter, multimeter: R

Relative expanded uncertainty : 1.2E2 µΩ/Ω to 3 µΩ/Ω

Uncertainty table

{"row_1":{"col_1":"","col_2":"Expanded uncertainty"},"row_2":{"col_1":"0.0001 ohm","col_2":"120"},"row_3":{"col_1":"0.001 ohm","col_2":"70"},"row_4":{"col_1":"0.01 ohm","col_2":"70"},"row_5":{"col_1":"0.1 ohm","col_2":"70"},"row_6":{"col_1":"1 ohm","col_2":"3.0"}}

The expanded uncertainties given in this table are expressed in µΩ/Ω

Direct measurement

R : decade values

Approved on 06 August 2013

Institute service identifier : 80

CMC ID : EURAMET-EM-BG-00000DTW-1

Impedance (up to the MHz range) , Inductance: self inductance, low values : 0.01 mH to 1 mH

Fixed inductor

Relative expanded uncertainty : 2.0E-2 H/H to 3.0E-4 H/H

Comparison with inductance bridge

Frequency : 1 kHz

Uncertainty is not varying linearly within the range

Approved on 06 August 2013

Institute service identifier : 26

CMC ID : EURAMET-EM-BG-00000DUU-1

DC resistance , DC resistance standards and sources: high values : 1.00E7 Ω to 1.00E9 Ω

Fixed resistor: R

Relative expanded uncertainty : 3.2 µΩ/Ω to 1.1E2 µΩ/Ω

Uncertainty table

{"row_1":{"col_1":"","col_2":"Expanded uncertainty"},"row_2":{"col_1":"10 Mohm","col_2":"3.2"},"row_3":{"col_1":"100 Mohm","col_2":"50"},"row_4":{"col_1":"1 Gohm","col_2":"110"}}

The expanded uncertainties given in this table are expressed in µΩ/Ω

Comparison by means of automated high resistance bridge

R : decade values

Measurements only at 23 °C in air bath

Approved on 06 August 2013

Institute service identifier : 75

CMC ID : EURAMET-EM-BG-00000DV6-1

High voltage and current , High DC voltage: ratios : 1.00E-5 to 1

High voltage resistive divider, DC high voltage probe

Relative expanded uncertainty : 2.0E-4

Comparison with reference divider

Input voltage : -100 kV to 200 kV

Approved on 06 August 2013

Institute service identifier : 91

CMC ID : EURAMET-EM-BG-00000DUV-1

Impedance (up to the MHz range) , Capacitance: low loss capacitors : 1.00E-3 nF to 9 nF

Standard capacitor

Relative expanded uncertainty : 0.3 µF/F to 2.0E1 µF/F

Uncertainty table

{"row_1":{"col_1":"Capacitance","col_2":"Type of Standard Capacitors","col_3":"Expanded uncertainty in µF/F"},"row_2":{"col_1":"1 pF to 90 pF","col_2":"air","col_3":"12"},"row_3":{"col_1":"10 pF","col_2":"fused silica, type AH11A","col_3":"1.1"},"row_4":{"col_1":"10 pF","col_2":"fused silica, type GR-1408-A","col_3":"3"},"row_5":{"col_1":"100 pF","col_2":"fused silica, type AH11A","col_3":"0.3"},"row_6":{"col_1":"100 pF","col_2":"fused silica, type GR-1408-B","col_3":"2"},"row_7":{"col_1":"0.1 nF to 9 nF","col_2":"air","col_3":"10 to 20"}}

Comparison with capacitance bridge

Frequency : 1 kHz

Uncertainty is not varying linearly within the range.

Approved on 03 February 2021

Institute service identifier : 24

CMC ID : EURAMET-EM-BG-00000DU2-2

AC current , AC current up to 100 A: sources : 10 A to 20 A

Multifunction calibrator, transconductance amplifier

Relative expanded uncertainty : 3.6E2 µA/A to 3.9E2 µA/A

Uncertainty table

{"row_1":{"col_1":"","col_2":"10 Hz to 55 Hz","col_3":"55 Hz to 1 kHz","col_4":"1 kHz to 5 kHz","col_5":"5 kHz to 10 kHz","col_6":"10 kHz","col_7":"20 kHz"},"row_2":{"col_1":"10 µA to 100 µA","col_2":"-","col_3":"770","col_4":"650","col_5":"770","col_6":"770","col_7":"-"},"row_3":{"col_1":"100 µA to 200 µA","col_2":"-","col_3":"240","col_4":"230","col_5":"240","col_6":"240","col_7":"-"},"row_4":{"col_1":"0.2 mA to 0.3 mA","col_2":"-","col_3":"220","col_4":"200","col_5":"220","col_6":"220","col_7":"-"},"row_5":{"col_1":"0.3 mA to 2 mA","col_2":"-","col_3":"160","col_4":"150","col_5":"160","col_6":"160","col_7":"-"},"row_6":{"col_1":"2 mA to 5 mA","col_2":"50","col_3":"50","col_4":"50","col_5":"50","col_6":"-","col_7":"-"},"row_7":{"col_1":"5 mA to 10 mA","col_2":"40","col_3":"40","col_4":"40","col_5":"40","col_6":"-","col_7":"-"},"row_8":{"col_1":"10 mA to 20 mA","col_2":"30","col_3":"30","col_4":"30","col_5":"30","col_6":"-","col_7":"-"},"row_9":{"col_1":"20 mA to 30 mA","col_2":"50","col_3":"50","col_4":"50","col_5":"50","col_6":"-","col_7":"-"},"row_10":{"col_1":"30 mA to 200 mA","col_2":"35","col_3":"35","col_4":"35","col_5":"35","col_6":"-","col_7":"-"},"row_11":{"col_1":"0.2 A to 0.3 A","col_2":"100","col_3":"100","col_4":"100","col_5":"100","col_6":"-","col_7":"-"},"row_12":{"col_1":"0.3 A to 0.5 A","col_2":"60","col_3":"60","col_4":"60","col_5":"60","col_6":"-","col_7":"-"},"row_13":{"col_1":"0.5 A to 1 A","col_2":"55","col_3":"55","col_4":"55","col_5":"55","col_6":"-","col_7":"-"},"row_14":{"col_1":"1 A to 2 A","col_2":"50","col_3":"50","col_4":"50","col_5":"50","col_6":"-","col_7":"-"},"row_15":{"col_1":"2 A to 3 A","col_2":"160","col_3":"160","col_4":"160","col_5":"160","col_6":"190","col_7":"190"},"row_16":{"col_1":"3 A to 5 A","col_2":"130","col_3":"130","col_4":"130","col_5":"130","col_6":"130","col_7":"180"},"row_17":{"col_1":"5 A to 10 A","col_2":"120","col_3":"120","col_4":"120","col_5":"120","col_6":"120","col_7":"180"},"row_18":{"col_1":"10 A","col_2":"100","col_3":"100","col_4":"100","col_5":"100","col_6":"100","col_7":"190"},"row_19":{"col_1":"10 A to 15 A","col_2":"-","col_3":"390","col_4":"390","col_5":"-","col_6":"-","col_7":"-"},"row_20":{"col_1":"15 A to 20 A","col_2":"-","col_3":"360","col_4":"360","col_5":"-","col_6":"-","col_7":"-"}}

The expanded uncertainties given in this table are expressed in µA/A.

AC/DC transfer

Frequency : 55 Hz to 1 kHz

Approved on 17 May 2021

Institute service identifier : 50

CMC ID : EURAMET-EM-BG-00000MFD-2

AC power , AC power and energy: three phase, active energy : 0 Ws to 5.76E6 Ws

Energy meter

Relative expanded uncertainty : 1.6E1 µWs (VAs)^-1 to 1.4E2 µWs (VAs)^-1

Uncertainty table

{"row_1":{"col_1":"","col_2":"For calibration of power meter, power converter, power comparator, wattmeter and energy meter","col_3":"For calibration of power meter, power converter, power comparator, wattmeter and energy meter","col_4":"For calibration of power meter, power converter, power comparator, wattmeter and energy meter","col_5":"For calibration of power meter, power converter, power comparator, wattmeter and energy meter","col_6":"For calibration of power meter, power converter, power comparator, wattmeter and energy meter ","col_7":"For calibration of power meter, power converter, power comparator, wattmeter and energy meter","col_8":"For calibration of power calibrator"},"row_2":{"col_1":"Power factor","col_2":"4-wire measuring mode \n10 V to 240 V \n0.002 A to 0.05 A","col_3":"4-wire measuring mode \n10 V to 240 V \n0.051 A to 100 A","col_4":"4-wire measuring mode \n241 V to 480 V \n0.002 A to 0.05 A","col_5":"4-wire measuring mode 241 V to 480 V 0.051 A to 100 A ","col_6":"4-wire measuring mode 10 V to 480 V 101 A to 120 A ","col_7":"3-wire measuring mode \n10 V to 480 V \n0.002 A to 100 A","col_8":"4-wire and 3 wire measuring mode \n10 V to 480 V \n0.002 A to 120 A"},"row_3":{"col_1":"1 to 0.8 inductive or capacitive ","col_2":"20","col_3":"16","col_4":"40","col_5":"30","col_6":"140","col_7":"140","col_8":"170"},"row_4":{"col_1":"0.5 inductive or capacitive","col_2":"30","col_3":"25","col_4":"60","col_5":"50","col_6":"140","col_7":"140","col_8":"170"}}

The expanded uncertainties given in this table are expressed in µW/VA, µWs/VAs, µvar/VA, µvars/VAs and µVA/VA

Direct comparison

Voltage : 10 V to 480 V

Current : 0.002 A to 120 A

Power factor : 1 to 0 inductive or capacitive

Measuring time : 1 s to 100 s

Frequency : 46 Hz to 65 Hz

The given range is "per phase"

Approved on 25 April 2021

Institute service identifier : 60

CMC ID : EURAMET-EM-BG-00000MFN-2

DC voltage (up to 1100 V) , DC voltage sources: single values : 1 V to 10 V

Solid state voltage standard

Relative expanded uncertainty : 2 µV/V to 0.2 µV/V

Uncertainty table

{"row_1":{"col_1":" ","col_2":"Expanded uncertainty"},"row_2":{"col_1":"1 V","col_2":"2"},"row_3":{"col_1":"1.018 V","col_2":"2"},"row_4":{"col_1":"10 V","col_2":"0.2"}}

The expanded uncertainties are expressed in µV/V

Differential method of comparison

Fixed voltage : 1 V, 1.018 V, 10 V

Approved on 22 July 2023

Institute service identifier : 1

CMC ID : EURAMET-EM-BG-00000DUY-2

Impedance (up to the MHz range) , Inductance: self inductance, intermediate values : 1.00E-3 H to 1 H

Fixed inductor

Relative expanded uncertainty : 5.0E-5 H/H to 4.0E-4 H/H

Uncertainty table

{"row_1":{"col_1":"","col_2":"Expanded uncertainty"},"row_2":{"col_1":"10 mH","col_2":"5.0E-05"},"row_3":{"col_1":"100 mH","col_2":"1.5E-04"},"row_4":{"col_1":"0.001 H to 1 H","col_2":"3E-04 to 4E-04"}}

The expanded uncertainties given in this table are expressed in H/H

Comparison with inductance bridge

Frequency : 1 kHz

Only for standards with shielded coils. Uncertainty is not varying linearly within the range

Approved on 06 August 2013

Institute service identifier : 29

CMC ID : EURAMET-EM-BG-00000DU5-1

DC resistance , DC resistance meters: high values : 1.00E10 Ω to 1.00E14 Ω

Teraohmmeter, electrometer: R

Relative expanded uncertainty : 1.1E3 µΩ/Ω to 6.3E3 µΩ/Ω

Uncertainty table

{"row_1":{"col_1":"","col_2":"Expanded uncertainty"},"row_2":{"col_1":"10 Gohm","col_2":"1100"},"row_3":{"col_1":"100 Gohm","col_2":"1300"},"row_4":{"col_1":"1 Tohm","col_2":"1700"},"row_5":{"col_1":"10 Tohm","col_2":"2800"},"row_6":{"col_1":"100 Tohm","col_2":"6300"}}

The expanded uncertainties given in this table are expressed in µΩ/Ω

Direct measurement

R : decade values

Approved on 06 August 2013

Institute service identifier : 82

CMC ID : EURAMET-EM-BG-00000DTY-1

DC resistance , DC resistance standards and sources: low values : 1.00E-4 Ω to 1 Ω

Fixed resistor: R

Relative expanded uncertainty : 0.2 µΩ/Ω to 9 µΩ/Ω

Uncertainty table

{"row_1":{"col_1":"","col_2":"Expanded uncertainty"},"row_2":{"col_1":"0.0001 ohm","col_2":"9.0"},"row_3":{"col_1":"0.001 ohm","col_2":"4.5"},"row_4":{"col_1":"0.01 ohm","col_2":"1.5"},"row_5":{"col_1":"0.1 ohm","col_2":"0.5"},"row_6":{"col_1":"1 ohm","col_2":"0.2"}}

The expanded uncertainties given in this table are expressed in µΩ/Ω

Comparison by means of current comparator bridge

R : decade values

Measurements only at 23 °C in oil bath

Approved on 06 August 2013

Institute service identifier : 71

CMC ID : EURAMET-EM-BG-00000DV2-1

DC resistance , DC resistance standards and sources: intermediate values : 2 Ω to 1.00E6 Ω

Resistance box

Relative expanded uncertainty : 1.1E1 µΩ/Ω to 2.4E1 µΩ/Ω

Uncertainty table

{"row_1":{"col_1":"","col_2":"Expanded uncertainty"},"row_2":{"col_1":"2 ohm to 10 ohm","col_2":"24 to 20"},"row_3":{"col_1":"20 ohm to 100 ohm","col_2":"16 to 13"},"row_4":{"col_1":"0.2 kohm to 1 kohm","col_2":"13 to 11"},"row_5":{"col_1":"2 kohm to 10 kohm","col_2":"12 to 11"},"row_6":{"col_1":"20 kohm to 100 kohm","col_2":"14 to 11"},"row_7":{"col_1":"0.2 Mohm to 1 Mohm","col_2":"21 to 13"}}

The expanded uncertainties given in this table are expressed in µΩ/Ω

Direct measurement

Measurements in air

Approved on 06 August 2013

Institute service identifier : 74

CMC ID : EURAMET-EM-BG-00000DV5-1

DC current (up to 100 A) , DC current sources: low values : 1.00E-5 A to 1.00E-4 A

Current generator, multifunction calibrator

Relative expanded uncertainty : 1.1E1 µA/A to 7 µA/A

Voltage drop across standard resistor

Approved on 06 August 2013

Institute service identifier : 10

CMC ID : EURAMET-EM-BG-00000DUS-1

High voltage and current , High DC voltage: average value : -100 kV to 200 kV

DC voltage measuring system, DC voltage source

Relative expanded uncertainty : 1.2E1 mV/V

Direct measurement with reference kilovoltmeter

Approved on 14 May 2021

Institute service identifier : 90

CMC ID : EURAMET-EM-BG-00000MFW-2

AC voltage (up to the MHz range) , AC voltage up to 1000 V: meters : 0.01 µV/V to 1000 µV/V

AC voltmeter, multimeter, multifunction transfer standard

Relative expanded uncertainty : 1.5E1 µV/V to 1.3E2 µV/V

Uncertainty table

{"row_1":{"col_1":"","col_2":"10 Hz to 20 Hz","col_3":"20 Hz to 53 Hz","col_4":"53 Hz to 1 kHz","col_5":"1 kHz","col_6":"1 kHz to 20 kHz","col_7":"20 kHz to 50 kHz","col_8":"100 kHz"},"row_2":{"col_1":"10 mV ","col_2":"130","col_3":"100","col_4":"100","col_5":"90","col_6":"90","col_7":"90","col_8":"90"},"row_3":{"col_1":"20 mV","col_2":"120","col_3":"65","col_4":"65","col_5":"65","col_6":"65","col_7":"65","col_8":"65"},"row_4":{"col_1":"50 mV","col_2":"100","col_3":"50","col_4":"50","col_5":"50","col_6":"50","col_7":"60","col_8":"60"},"row_5":{"col_1":"100 mV","col_2":"60","col_3":"50","col_4":"50","col_5":"50","col_6":"50","col_7":"50","col_8":"50"},"row_6":{"col_1":"200 mV","col_2":"50","col_3":"40","col_4":"40","col_5":"40","col_6":"40","col_7":"40","col_8":"40"},"row_7":{"col_1":"0.2 V to 1 V","col_2":"55","col_3":"40","col_4":"40","col_5":"20","col_6":"20","col_7":"40","col_8":"110"},"row_8":{"col_1":"1 V","col_2":"20","col_3":"15","col_4":"15","col_5":"15","col_6":"15","col_7":"30","col_8":"110"},"row_9":{"col_1":"1 V to 20 V ","col_2":"35","col_3":"30","col_4":"30","col_5":"20","col_6":"20","col_7":"35","col_8":"110"},"row_10":{"col_1":"20 V to 200 V","col_2":"35","col_3":"30","col_4":"30","col_5":"30","col_6":"30","col_7":"30","col_8":"60"},"row_11":{"col_1":"200 V to 1000 V","col_2":"-","col_3":"-","col_4":"120","col_5":"100","col_6":"120","col_7":"-","col_8":"-"}}

The expanded uncertainties given in this table are expressed in µV/V

Direct with calibrator

Frequency : 10 Hz to 100 kHz

Minimum value of uncertainty for 1 V

Approved on 25 April 2021

Institute service identifier : 39

CMC ID : EURAMET-EM-BG-00000MFT-2

AC power , AC power and energy: three phase, apparent power : 0.06 VA to 5.76E4 VA

Power meter, power converter, power comparator, power calibrator

Relative expanded uncertainty : 1.6E1 µVA (VA)^-1 to 1.7E2 µVA (VA)^-1

Uncertainty table

{"row_1":{"col_1":"","col_2":"For calibration of power meter, power converter, power comparator, wattmeter and energy meter","col_3":"For calibration of power meter, power converter, power comparator, wattmeter and energy meter ","col_4":"For calibration of power meter, power converter, power comparator, wattmeter and energy meter ","col_5":"For calibration of power meter, power converter, power comparator, wattmeter and energy meter ","col_6":"For calibration of power meter, power converter, power comparator, wattmeter and energy meter","col_7":"For calibration of power meter, power converter, power comparator, wattmeter and energy meter ","col_8":"For calibration of power calibrator"},"row_2":{"col_1":"Power factor","col_2":"4-wire measuring mode \n10 V to 240 V \n0.002 A to 0.05 A","col_3":"4-wire measuring mode 10 V to 240 V 0.051 A to 100 A","col_4":"4-wire measuring mode 241 V to 480 V 0.002 A to 0.05 A ","col_5":"4-wire measuring mode 241 V to 480 V 0.051 A to 100 A ","col_6":"4-wire measuring mode \n10 V to 480 V \n101 A to 120 A","col_7":"3-wire measuring mode \n10 V to 480 V \n0.002 A to 100 A","col_8":"4-wire and 3 wire measuring mode 10 V to 480 V 0.002 A to 120 A "},"row_3":{"col_1":"1 to 0.8 inductive or capacitive ","col_2":"20","col_3":"16","col_4":"40","col_5":"30","col_6":"140","col_7":"140","col_8":"170"},"row_4":{"col_1":"0.5 inductive or capacitive ","col_2":"30","col_3":"25","col_4":"60","col_5":"50","col_6":"140","col_7":"140","col_8":"170"}}

The expanded uncertainties given in this table are expressed in µW/VA, µWs/VAs, µvar/VA, µvars/VAs and µVA/VA

Direct comparison

Voltage : 10 V to 480 V

Current : 0.002 A to 120 A

Power factor : 1 to 0 inductive or capacitive

Frequency : 46 Hz to 65 Hz

The given range is "per phase"

Approved on 25 April 2021

Institute service identifier : 89

CMC ID : EURAMET-EM-BG-00000MFM-2

Select Metrology Area

General physics

Acoustics, Ultrasound, Vibration

This metrology area covers the fields of acoustics, ultrasound and vibration.

Electricity and Magnetism

This metrology area covers the fields of DC and AC measurements, impedance, electric and magnetic fields, radiofrequencies and measurements on materials.

Length

This metrology area covers the fields of laser frequencies and dimensional metrology.

Mass and related quantities

This metrology area covers the fields of mass standards, force, pressure, density, hardness, torque, gravity and viscosity.

Photometry and Radiometry

Thermometry

Time and Frequency

Chemistry and Biology

This metrology area covers all fields relevant to chemistry and biology.

Ionizing radiation

Ionizing Radiation

This metrology area covers the fields of dosimetry, radioactivity and neutron measurements.

Select Metrology Area

KCDB

CIPM MRA

CLASSIFICATION OF SERVICES