General Information

Serial #

101

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

metal casing, base, stand, controls, parts/ glass tube/ synthetic part/ liquid spirit in glass & metal level housing

Dimensions

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

Length

22.5 cm

Width

22.5 cm

Height

30.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Meteorology

Category

Sunshine intensity & duration measurement

Sub-Category

N/A

Manufacturer

AKA

KIPP

Country

Netherlands

State/Province

Unknown

City

Delft

Context

Country

Canada

State/Province

Unknown

Period

This instrument was apparently in use for 49 years (Ref. 5).

Canada

A radiation measuring instrument of a type used by the Meteorological Service of Canada to gather radiation data. Part of a large collection of meteorological instruments acquired from the Meteorological Service of Canada (previously Atmospheric Environment Service) by the CSTM since 1967. MSC is the government agency responsible for collecting and disseminating meteorological data and forecasts in Canada. It was founded in 1871 in Toronto where it is still headquartered. The MSC was originally on the University of Toronto downtown campus but moved to Downsview in 1971 on land owned by UofT. The headquarters houses laboratories, research facilities and calibration and instrument maintenance facilities (now largely contracted out).

Function

An instrument used to measure the radiation from the direct beam of the sun; direct beam RF8 (Radiation Field 8) measurements are made at solar radiation research sites.

Technical

An example of a Linke Fuessner type actinometer. This instrument was used to measure the radiation from the direct beam of the sun. Direct beam (RF8) measurements of the sun which have a 5° degree beam width are made at research sites only. Presently a tracking pyrheliometer is used for this measurement (Ref. 1) This Dutch made instrument has a Moll thermopile, mounted in a thick copper shell consisting of a series of concentric rings screwed one upon another. The heavy mass of the body prevents air currents from unduly affecting the sensor and minimizes any temperature rise due to direct solar radiation, maintaining an uniform temperature in the vicinity of the sensor. The thermopile is divided into two equal sections which are connected in opposition, with one sections screened from radiation and acts a compensating device (Refs. 2-3). See the very similar instrument in the 1982 BMO Handbook (Ref. 3), identified as a pyrheliometer

Area Notes

Unknown

Details

Markings

incised lettering reads 'KIPP - DELFT - HOLLAND/ No 101'

Missing

this instrument is usually provided with red and yellow filters

Finish

plated casing and parts/ green painted base and stand/ colourless transparent glass tube/ black synthetic

Decoration

N/A