Radiometer

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Ingenium, 1992.2421.001
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OBJECT TYPE: N/A
DATE: Unknown
ARTIFACT NUMBER: 1992.2421.001

MANUFACTURER: Knott
MODEL: Unknown
LOCATION: Boston, Massachusetts, United States of America

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: FERROUS METAL BASE/ NON-FERROUS METAL PARTS/ GLASS

Dimensions

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

Length: 14.3 cm
Width: 14.3 cm
Height: 29.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Physics
Category: Demonstration & teaching equipment
Sub-Category: N/A

Manufacturer

AKA: Knott
Country: United States of America
State/Province: Massachusetts
City: Boston

Context

Country: United States of America
State/Province: Maine
Period: Unknown
Canada: PART OF LARGE & VARIED COLLECTION OF OVER 7500 ELECTRICAL ITEMS ACQUIRED & DOCUMENTED BY ONTARIO HYDRO IN 1960S. COLLECTION WAS THOUGHT TO BE LARGEST & MOST COMPREHENSIVE IN CANADA & WAS DONATED TO NMST IN 1992.
Function: INSTRUMENT THAT DETECTS & MEASURES INTENSITY OF RADIANT ENERGY, IN THIS CASE HEAT.
Technical: RADIO-MICROMETER, DEVELOPED BY C.V. BOYS IN 1889, IS FORM OF THERMOPILE WITH GREAT SENSITIVITY. KNOTT'S RADIOMETER RESEMBLES FIRM'S D'ARSONVAL GALVANOMETER, WITH MOVING COIL REPLACED BY SENSITIVE THERMOCOUPLE MADE OF ANTIMONY &BISMUTH. IT APPEARS IN CATALOGUES FROM AT LEAST 1916 TO 1921 (REFS. 1 & 2).
Area Notes: Unknown

Details

Markings: INDENTED LETTERING ON BASE READS "KNOTT BOSTON/ PAT. PENDING"
Missing: SCALE & READING DEVICE - IN THIS FORM INSTRUMENT COULD BE READ WITH TELESCOPE.
Finish: BASE PAINTED BLACK/ GOLD COLOURED PARTS/ COLOURLESS TRANSPARENT GLASS/ MIRROR/ METALLIC WIRE & PARTS
Decoration: N/A

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

Knott, Radiometer, Unknown Date, Artifact no. 1992.2421, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1992.2421.001/

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