ГЭТ 27-2009 (НИЛ 2201)
Standard name:
- ГЭТ 27-2009 State primary special standard of the unit of electrical voltage - volt - in the frequency range (3 107 - 2 109) Hz
Type of measurement:
- Measurements of electrical and magnetic quantities; Radiotechnical and radioelectronic measurements
Structural division: name НИО\НИЛ:
- Research Laboratory of State Primary Standards in the Field of Measurements of Electrical Circuit Modes
Guardian Scientist:
- Shevtsov Vladimir Ivanovich, Candidate of Technical Sciences, Associate Professor
Year of creation:
- 1982
Year of re-confirmation:
- 2009
Operating principle:
The standard's operation is based on the method of simultaneously comparing the root-mean-square value of alternating voltage with the value of direct voltage.
Composition of the standard:
- Thermistor voltage converters;
- DC voltage measure of 1 and 10 V;
- Dual DC thermistor bridge with automatic balancing;
- DC voltmeter with a measurement range of 1 to 10 V;
- High-frequency electronic voltmeter - comparator with a measurement range of (0.1 - 10 V);
- Electronic frequency meter.
- Signal generator for a frequency range of 30 to 2000 MHz;
- Signal amplifier for a frequency range of 30 to 1000 MHz;
- Signal amplifier for the frequency range from 1000 to 2000 MHz;
Main metrological characteristics
| Name | Value |
|---|---|
| Estimated Unexcluded Systematic Reproduction Error | (3 x 10-4 – 3.5 x 10-3) relative units at a voltage of (0.1 – 10) V in the frequency range of (3 x 107 - 1 x 109) Hz (2 x 10-3 – 7 x 10-3) relative units at voltage of (0.1 – 3) V in the frequency range of (1 109 – 2 109) Hz |
| Estimation of random error of reproduction of units | (5 10-5 - 5 10-4) rel. units at voltage of (0.1 – 10) V in the frequency range of (3 107 - 1 109) Hz (2 10-4 - 1 10-3) rel. units at a voltage of (0.1 – 3) V in the frequency range of (1 109 - 2 109) Hz |
| Type A standard uncertainty | (5 x 10-5 - 5 x 10-4) rel. units at (0.1 – 10) V in the frequency range (3 x 107 - 1 x 109) Hz (2 x 10-4 - 1 x 10-3) rel. units at voltage (0.1 – 3) V in frequency range (1 x 109 - 2 x 109) Hz |
| Type B standard uncertainty | (1.7 x 10-4 - 2 x 10-3) rel. units at voltage (0.1 – 10) V in frequency range (3 x 107 - 1 x 109) Hz (1 x 10-3 - 4 x 10-3) rel. units at a voltage of (0.1 – 3) V in the frequency range of (1 109 - 2 109) Hz |
| Total standard uncertainty | (1.8 x 10-4 – 2.1 x 10-3) rel. units at voltage (0.1 – 10) V in frequency range (3 x 107 - 1 x 109) Hz (1 x 10-3 – 4.1 x 10-3) rel. units at voltage (0.1 – 3) V in frequency range (1 x 109 - 2 x 109) Hz |
| Expanded uncertainty at coverage factor k=2 | (3.6 x 10-4 – 4.2 x 10-3) rel. units at voltage (0.1 – 10) V in frequency range (3 x 107 - 1 x 109) Hz (2 x 10-3 – 8.2 x 10-3) rel. units at a voltage of (0.1 – 3) V in the frequency range of (1 109 - 2 109) Hz |
Verification diagram:
- Heads the state verification scheme for measuring instruments of alternating electric voltage up to 1000 V in the frequency range from 1 10^-1 to 2 10^9 Hz
Scope of application:
- Instrumentation and precision engineering;
- Electronics, space, and defense technologies;
- Shipbuilding, aircraft and rocket engineering, telecommunications technologies;
- Radar, air traffic control;
- Radio astronomy systems;
- Medicine, etc.
Results of applying the standard:
Metrological support for AC voltage measurements:
- 3 secondary standards;
- approximately 100 first-class working standards;
- over 1,000 second-class working standards.
The total number of measuring instruments traceable to ГЭТ 27-2009:
According to expert estimates, there are more than 100 thousand units – high-frequency voltmeters, voltmeter testing units, calibrators, etc.
Ensuring the uniformity of measurements, participation in the CIPM MRA program:
Comparisons: CCEM.RF-K4.CL. SMS lines: COOMET-EM-RU-00000KYD-1, COOMET-EM-RU-00000KYC-1
Unique technical installations as part of the standard:
Thermistor voltage converters
PHOTO:
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General appearance of the standard ГЭТ 27-2009