Bridge, soil moisture

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Ingenium, 1988.1266.001
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OBJECT TYPE: DUOSCOPE/CIRCULAR
DATE: 1955
ARTIFACT NUMBER: 1988.1266.001

MANUFACTURER: INDUSTRIAL INSTRUMENTS INC.
MODEL: RC-12C1
LOCATION: Cedar Grove, New Jersey, United States of America

More Information

General Information

Serial #: 42580
Part Number: 1
Total Parts: 2
AKA: N/A
Patents: N/A
General Description: WOODEN CASE COVERED IN CLOTH WITH METAL HARDWARE & SYNTHETIC HANDLE/ METAL INNER BOX & TOP PANEL/ BAKELITE KNOBS/ METAL & SYNTHETIC WORKING PARTS/ SYNTHETIC EYE TUBE SHIELD

Dimensions

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

Length: 43.0 cm
Width: 30.5 cm
Height: 23.0 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Agriculture
Category: Research
Sub-Category: N/A

Manufacturer

AKA: INDUSTRIAL
Country: United States of America
State/Province: New Jersey
City: Cedar Grove

Context

Country: North America
State/Province: Unknown
Period: 1950'S & 1960'S
Canada: Unknown
Function: TO MEASURE THE MOISTURE CONTENT OF THE SOIL. THIS IS DONE BY BURYING GYPSUM SOIL BLOCKS IN THE SOIL AND CONNECTING THE BRIDGE TO THE BLOCK'S LEAD WIRES IN ORDER TO MEASURE THE RESISTANCE & ELECTROLYTIC CONDUCTIVITY OF THE BLOCK. THE RESISTANCE REGISTERED CAN BE SCALED TO MOISTURE CONTENT.
Technical: A SELECTOR SWITCH FORINSTANTANEOUSLY CHANGING FROM ONE BRIDGE FREQUENCY TO THE OTHER ALLOWS THE USER TO SELECT, IN A SINGLE INSTRUMENT, THE SOURCE FREQUENCY BEST ADAPTED TO EXTREMELY LOW OR TO EXTREMELY HIGH RESISTANCE MEASUREMEMENTS.
Area Notes: Unknown

Details

Markings: .1: MARKINGS ON TOP PANEL INCLUDE: 'CONDUCTIVITY/ BRIDGE/ MODEL RC 12C1/ FOR MEASUREMENT/ OF RESISTANCE/ AND ELECTROLYTIC/ CONDUCTIVITY/ WATTS 3/ VOLTS C-108/ CYCLES DC/ SERIAL NO. 42580/ Industrial/ [LOGO]/ Instruments/ Inc./ [DESIGNATIONS & GRADUATIONS AROUND KNOBS & SWITCHES]/ PLATE ON FRONT: 'Industrial Instruments/ INC./ CEDAR GROVE, N.J.'/ SHEET AFFIXED TO INSIDE LID TITLED: 'CONDUCTIVITY BRIDGE/ MODEL RC' WITH OPERATION INSTRUCTIONS/.2 DECAL: 'USE EYE/ TUBE SHIELD IN/ BRIGHT SUNLIGHT'/ HANDPAINTED ON TOP PANEL: 'P.A. 42'
Missing: BATTERY; GYPSUM BLOCKS
Finish: DARK GREY CLOTH COVER; GREY HANDLE BLACK INNTER BOX & TOP PANEL/ GREY PRINTING/ BLACK EYE TUBE
Decoration: N/A

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

INDUSTRIAL INSTRUMENTS INC., Bridge, soil moisture, circa 1955, Artifact no. 1988.1266, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/item/1988.1266.001/

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