Results for: Bulgaria vibration
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In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a 2 + b 2]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)
Measurement microphones , Pressure sensitivity level
Measurement microphone type LS1P
Absolute expanded uncertainty : 0.18 dB
Pressure sequential comparison
Frequency : 5 kHz to 10 kHz
Approved on 18 October 2005
Linear vibration , Acceleration : 1 m/s2 to 1000 m/s2
Acceleration measuring instrument
Relative expanded uncertainty : 2 %
Comparison, ISO 16063-21
Frequency : 6.3 kHz to 10 kHz
Approved on 18 October 2005
Sound measuring instruments , Free-field response level
Sound level meter
Absolute expanded uncertainty : 0.4 dB
Sequential comparison
Frequency : 63 Hz to 4 kHz
Approved on 18 October 2005
Measurement microphones , Pressure sensitivity level
Working standard microphone
Absolute expanded uncertainty : 0.14 dB
Pressure sequential comparison
Frequency : 63 Hz to 4 kHz
Approved on 18 October 2005
Measurement microphones , Free-field sensitivity level
Measurement microphone
Absolute expanded uncertainty : 0.3 dB
Sequential comparison
Frequency : 63 Hz to 4 kHz
Approved on 18 October 2005
Measurement microphones , Free-field sensitivity level
Measurement microphone
Absolute expanded uncertainty : 0.5 dB
Sequential comparison
Frequency : 5 kHz to 10 kHz
Approved on 18 October 2005
Sound calibrators , Sound pressure level : 70 dB (reference: 20 µPa) to 125 dB (reference: 20 µPa)
Sound calibrator, single frequency 160 Hz to 1000 Hz
Absolute expanded uncertainty : 0.1 dB
Calibrated measurement microphone
Microphone type : LS1P
Approved on 18 October 2005
Linear vibration , Acceleration : 0.1 m/s2 to 1000 m/s2
Calibrator
Relative expanded uncertainty : 0.5 %
Laser interferometry, ISO 16063-11
Frequency : 0.5 Hz to 1000 Hz
Approved on 18 October 2005
Linear vibration , Voltage sensitivity (magnitude)
Accelerometer, acceleration measuring chain
Relative expanded uncertainty : 2 %
Comparison, ISO 16063-21
Frequency : 6.3 kHz to 10 kHz
Approved on 18 October 2005
Sound measuring instruments , Sound pressure response level : 94 dB (reference: 20 µPa) to 124 dB (reference: 20 µPa)
Sound level meter
Absolute expanded uncertainty : 0.2 dB
Sound calibrator
Frequency : 1 kHz / 250 Hz
Approved on 18 October 2005
Linear vibration , Acceleration : 0.1 m/s2 to 1000 m/s2
Acceleration measuring instrument
Relative expanded uncertainty : 1 %
Comparison, ISO 16063-21
Frequency : 5 Hz to 5 kHz
Approved on 18 October 2005
Measurement microphones , Pressure sensitivity level
Measurement microphone type LS1P
Absolute expanded uncertainty : 8.0E-2 dB
Pressure sequential comparison
Frequency : 63 Hz to 1 kHz
Approved on 18 October 2005
Measurement microphones , Pressure sensitivity level
Measurement microphone type LS1P
Absolute expanded uncertainty : 0.12 dB
Pressure sequential comparison
Frequency : 1.25 kHz to 4 kHz
Approved on 18 October 2005
Linear vibration , Voltage sensitivity (magnitude)
Accelerometer, acceleration measuring chain
Relative expanded uncertainty : 0.5 %
Laser interferometry, ISO 16063-11
Frequency : 5 Hz to 1000 Hz
Approved on 18 October 2005
Linear vibration , Charge sensitivity (magnitude)
Accelerometer
Relative expanded uncertainty : 2 %
Comparison, ISO 16063-21
Frequency : 6.3 kHz to 10 kHz
Approved on 18 October 2005
Sound calibrators , Sound pressure level : 70 dB (reference: 20 µPa) to 125 dB (reference: 20 µPa)
Sound calibrator, single frequency 160 Hz to 1000 Hz
Absolute expanded uncertainty : 0.15 dB
Calibrated measurement microphone
Microphone type : WS2P
Approved on 18 October 2005
Linear vibration , Acceleration : 1 m/s2 to 1000 m/s2
Calibrator
Relative expanded uncertainty : 2 %
Comparison, ISO 16063-21
Frequency : 6.3 kHz to 10 kHz
Approved on 18 October 2005
Linear vibration , Charge sensitivity (magnitude)
Accelerometer
Relative expanded uncertainty : 1 %
Comparison, ISO 16063-21
Frequency : 5 Hz to 5 kHz
Approved on 18 October 2005
Linear vibration , Charge sensitivity (magnitude)
Accelerometer
Relative expanded uncertainty : 0.5 %
Laser interferometry, ISO 16063-11
Frequency : 10 Hz to 1000 Hz
Approved on 18 October 2005
Linear vibration , Acceleration : 0.1 m/s2 to 1000 m/s2
Acceleration measuring instrument
Relative expanded uncertainty : 0.5 %
Laser interferometry, ISO 16063-11
Frequency : 5 Hz to 1000 Hz
Approved on 18 October 2005

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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.

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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.