Cover, battery compartment

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OBJECT TYPE: threaded
DATE: 1991
ARTIFACT NUMBER: 2017.0101.002

MANUFACTURER: Brüel and Kjaer
MODEL: Unknown
LOCATION: Denmark

More Information

General Information

Serial #: N/A
Part Number: 2
Total Parts: 3
AKA: N/A
Patents: N/A
General Description: Synthetic battery compartment cover Couverture synthétique pour compartiment de batterie.

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: N/A
Width: N/A
Height: 3.4 cm
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: A threaded cap covering the battery compartment and internal electrical workings of a calibrator. Un bouchon fileté couvrant le compartiment de la batterie et le fonctionnement électrique interne du calibrateur.
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 mesure 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 être utilisé avec des microphones 1/4" et 1/8".
Area Notes: Unknown

Details

Markings: Printed on the white label: "EMR/ EMR/ INVENTORY CONTROL - CONTRÔLE DES STOCKS/ CODE 1000/ NSN/NNO 6625-21-113-8406"/ Handwritten on the white label: "8499"
Missing: Appears complete
Finish: Black synthetic cap bearing a white label with black text. Bouchon noir synthétique portant une étiquette blanche avec texte noir.
Decoration: N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Brüel and Kjaer, Cover, battery compartment, before 1991, Artifact no. 2017.0101, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2017.0101.002/

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