GB506596A - Improvements in and relating to electrical apparatus incorporating photosensitive cells - Google Patents

Improvements in and relating to electrical apparatus incorporating photosensitive cells

Info

Publication number
GB506596A
GB506596A GB3523737A GB3523737A GB506596A GB 506596 A GB506596 A GB 506596A GB 3523737 A GB3523737 A GB 3523737A GB 3523737 A GB3523737 A GB 3523737A GB 506596 A GB506596 A GB 506596A
Authority
GB
United Kingdom
Prior art keywords
cell
cells
relating
electrical apparatus
apparatus incorporating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3523737A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FOSTER INSTR Co Ltd
Original Assignee
FOSTER INSTR Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FOSTER INSTR Co Ltd filed Critical FOSTER INSTR Co Ltd
Priority to GB3523737A priority Critical patent/GB506596A/en
Publication of GB506596A publication Critical patent/GB506596A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02—Details
    • H01J40/14—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

Landscapes

  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

506,596. Photo - electric radiation thermometers; valve relays. FOSTER INSTRUMENT CO., Ltd., and DOUGLAS, A. Dec. 20, 1937, No. 35237. [Classes 40 (iii) and 40 (v)] An apparatus responsive to heat radiation comprises two photoelectric cells PC1, PC2, of the polarized vacuum type arranged in opposition so that ambient temperature affecting both cells equally, is balanced out and the apparatus responds only to radiation received by the cell PC2, the other cell being enclosed in a heat-screening enclosure. As shown, the cells are in series between the terminals of the HT supply, and the cell PC1 is shunted across a resistance R in input circuit of thermionic valve V, the anode circuit of which includes the measuring instrument M.
GB3523737A 1937-12-20 1937-12-20 Improvements in and relating to electrical apparatus incorporating photosensitive cells Expired GB506596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3523737A GB506596A (en) 1937-12-20 1937-12-20 Improvements in and relating to electrical apparatus incorporating photosensitive cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3523737A GB506596A (en) 1937-12-20 1937-12-20 Improvements in and relating to electrical apparatus incorporating photosensitive cells

Publications (1)

Publication Number Publication Date
GB506596A true GB506596A (en) 1939-06-01

Family

ID=10375427

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3523737A Expired GB506596A (en) 1937-12-20 1937-12-20 Improvements in and relating to electrical apparatus incorporating photosensitive cells

Country Status (1)

Country Link
GB (1) GB506596A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444442A (en) * 1946-06-29 1948-07-06 Lafayette M Hughes Photoelectric apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444442A (en) * 1946-06-29 1948-07-06 Lafayette M Hughes Photoelectric apparatus

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