Calibrator
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2017.0101.001
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- OBJECT TYPE
- sound level
- DATE
- 1991
- ARTIFACT NUMBER
- 2017.0101.001
- MANUFACTURER
- Brüel and Kjaer
- MODEL
- 4230
- LOCATION
- Denmark
More Information
General Information
- Serial #
- 1276173
- Part Number
- 1
- Total Parts
- 3
- AKA
- N/A
- Patents
- N/A
- General Description
- Metal sound level calibrator Calibrateur de niveau sonore en métal.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 9.8 cm
- Width
- N/A
- Height
- N/A
- Thickness
- N/A
- Weight
- N/A
- Diameter
- 4.0 cm
- Volume
- N/A
Lexicon
- Group
- Communications
- Category
- Sound
- Sub-Category
- N/A
Manufacturer
- AKA
- Bruel Kjaer
- Country
- Denmark
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Instrument used for calibrating microphones (ex: Precision Sound Level Meters). Instrument utilisé pour l'étalonnage de microphone (exemple: Sonomètre de précision). - Function
-
Calibration of sound measuring equipment. Étalonnage des appareils de mesure de son. - Technical
-
The Bruel & Kjaer 4230 Sound Level Calibrator is a pocket sized, battery operated sound source intended for quick and direct calibration of 1" and 1/2" diameter microphones, sound level meters and other sound measuring systems. An adapter is placed over the opening for use with 1/2" microphones and is removed when 1" microphones are to be calibrated. With the correct adaptors it can be used for 1/4" and 1/8" microphones as well. Le calibrateur de niveau sonore Bruel & Kjaer 4230 est en format de poche, fonctionne avec batterie, source sonore destinée à un calibrage direct des microphones de diamètre 1" et 1/2", sonomètres et autres systèmes de mesures du son. Un adapteur est placé par-dessus l'ouverture pour utilisation d'un microphone 1/2" et est enlevé lorsque les microphones 1" sont calibrés. Avec le bon adapteur, le calibrateur peut aussi être utilisé pour des microphones 1/4" et 1/8". - Area Notes
-
Unknown
Details
- Markings
- On the manufacturer label: "Brüel & Kjaer/ Type 4230/ 94 dB 1000 Hz/ [logo]/ Sound Level Calibrator/ Serial no. 1 276 173/ This calibrator gives a pressure calibration directly. For Sound Level/ meter calibration (free-field calibration) adjust to 93,6 dB for 1"/ and 93,8 dB for1/2" microphones. Replace battery if signal/ does not last for at least a few seconds after contact is released/ Warning: Do not unscrew the coupler part"/ On white label: "Labour/ Canada/ Travail/ Canada/ CALIBRATED / CALIBRÉ/ Init. PD Date 16/6/88"
- Missing
- Appears complete
- Finish
- Black cylindrical calibrator with a black and silver-coloured label and white and black labels. Calibrateur cylindrique noir avec étiquette noir et argenté, et étiquette noir et blanc.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Brüel and Kjaer, Calibrator, before 1991, Artifact no. 2017.0101, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2017.0101.001/
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