FR867448A - Pyroelectric devices - Google Patents

Pyroelectric devices

Info

Publication number
FR867448A
FR867448A FR867448DA FR867448A FR 867448 A FR867448 A FR 867448A FR 867448D A FR867448D A FR 867448DA FR 867448 A FR867448 A FR 867448A
Authority
FR
France
Prior art keywords
pyroelectric devices
pyroelectric
devices
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
Other languages
French (fr)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR867448A publication Critical patent/FR867448A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • H01G7/028—Electrets, i.e. having a permanently-polarised dielectric having a heterogeneous dielectric
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N15/00—Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using the Nernst-Ettingshausen effect
    • H10N15/10—Thermoelectric devices using thermal change of the dielectric constant, e.g. working above and below the Curie point
FR867448D 1939-08-31 1940-10-10 Pyroelectric devices Expired FR867448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US292902A US2299260A (en) 1939-08-31 1939-08-31 Energy translation utilizing pyroelectricity

Publications (1)

Publication Number Publication Date
FR867448A true FR867448A (en) 1941-10-27

Family

ID=23126726

Family Applications (1)

Application Number Title Priority Date Filing Date
FR867448D Expired FR867448A (en) 1939-08-31 1940-10-10 Pyroelectric devices

Country Status (2)

Country Link
US (1) US2299260A (en)
FR (1) FR867448A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294704B (en) * 1961-01-20 1969-05-08 Electronique Appliquee Arrangement for temperature-dependent triggering of electrical processes

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2643280A (en) * 1942-10-26 1953-06-23 Csf Method and apparatus for power measurement and detection at ultrahigh frequencies
US2520938A (en) * 1944-10-07 1950-09-05 Klein Elias Tourmaline crystal transducer
US2509913A (en) * 1944-12-14 1950-05-30 Bell Telephone Labor Inc Electric power source
US2528726A (en) * 1945-06-02 1950-11-07 Rines Robert Harvey Electric system
US2520602A (en) * 1947-04-30 1950-08-29 Rca Corp Microwave mode changer and integrator
US2711094A (en) * 1949-06-25 1955-06-21 Celanese Corp Stop motion
US2744197A (en) * 1951-05-09 1956-05-01 Globe Union Inc Frequency stabilization
US3149246A (en) * 1958-10-10 1964-09-15 Bell Telephone Labor Inc Thermoelectric generators
US3278769A (en) * 1961-07-17 1966-10-11 Howard M Graham Method of temperature cycling ferroelectric ceramics through a temperature range below the curie point thereof
US3459945A (en) * 1966-11-07 1969-08-05 Barnes Eng Co Laser calorimeter with cavitated pyroelectric detector and heat sink
US3508089A (en) * 1967-03-31 1970-04-21 Clifton C Cheshire Apparatus for converting heat directly into electric energy
US4317063A (en) * 1978-10-28 1982-02-23 Plessey Handel Und Investments Ag Pyroelectric detectors
US9180424B2 (en) * 2010-09-11 2015-11-10 Albert Chin-Tang Wey Infrared assisted hydrogen generation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294704B (en) * 1961-01-20 1969-05-08 Electronique Appliquee Arrangement for temperature-dependent triggering of electrical processes

Also Published As

Publication number Publication date
US2299260A (en) 1942-10-20

Similar Documents

Publication Publication Date Title
FR867448A (en) Pyroelectric devices
FR853118A (en) Photoelectric thermostatic devices
FI20284A (en) Centrifugalbroms
FI20620A (en) Luftkyld blästerforma
FI20689A (en) Malm- eller stenkross
FI20783A (en) Parallellogram-lyftställning
FI19877A (en) Avkylnings- och uppvärmningsapparat
FR867849A (en) Acoustic devices
FR879742A (en) Direction-finding devices
FI20036A (en) Stående varmvattenpanna
FI20128A (en) Lättmetlklack
FI19759A (en) Dörrtröskellist
FI19775A (en) Skidbindning
FI19230A (en) Tumklove
FI19889A (en) Bokhylla
FI19903A (en) Salaojalapto
FI19925A (en) Skidbindning
FI19347A (en) Takskydd
FI19640A (en) Kylplatta
FI19621A (en) Lyftanordning
FI19607A (en) Äggkartong
FI19350A (en) Solskyddsskärm
FI20011A (en) Flimmer pejlingsmottagare
FI20022A (en) Peerage
FI19550A (en) Velocipedram