JPS6461618A - Pyroelectric element - Google Patents

Pyroelectric element

Info

Publication number
JPS6461618A
JPS6461618A JP62219859A JP21985987A JPS6461618A JP S6461618 A JPS6461618 A JP S6461618A JP 62219859 A JP62219859 A JP 62219859A JP 21985987 A JP21985987 A JP 21985987A JP S6461618 A JPS6461618 A JP S6461618A
Authority
JP
Japan
Prior art keywords
pyroelectric element
polarized
noise
pyroelectric
piezoelectric
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.)
Pending
Application number
JP62219859A
Other languages
Japanese (ja)
Inventor
Shinichi Taniguchi
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.)
Nippon Ceramic Co Ltd
Original Assignee
Nippon Ceramic 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 Nippon Ceramic Co Ltd filed Critical Nippon Ceramic Co Ltd
Priority to JP62219859A priority Critical patent/JPS6461618A/en
Publication of JPS6461618A publication Critical patent/JPS6461618A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
    • G01J5/34—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using capacitors, e.g. pyroelectric capacitors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

PURPOSE:To suppress a noise level below conventional 40% and to to obtain the pyroelectric element with high reliability by polarizing only a sensing electrode part. CONSTITUTION:A thin plate 2 which is not polarized is provided with sensing electrodes S-1 and S-2 and only the electrode parts are polarized. In general, when the polarization processing is performed, secondary operation such as piezoelectric operation is caused by a part which does not require a pyroelectric function and the pyroelectric element is stressed owing to a difference in heat expansion among materials as the temperature varies, thereby generating a noise. The noise is generated with width W and length L at the time of conventional polarization processing, but the piezoelectric secondary operation is only a+a and E when only the sensing electrode parts are polarized; and the noise level ratio under the same conditions is suppressed below about 40%, so that the highly reliable pyroelectric element is obtained.
JP62219859A 1987-09-01 1987-09-01 Pyroelectric element Pending JPS6461618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62219859A JPS6461618A (en) 1987-09-01 1987-09-01 Pyroelectric element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62219859A JPS6461618A (en) 1987-09-01 1987-09-01 Pyroelectric element

Publications (1)

Publication Number Publication Date
JPS6461618A true JPS6461618A (en) 1989-03-08

Family

ID=16742175

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62219859A Pending JPS6461618A (en) 1987-09-01 1987-09-01 Pyroelectric element

Country Status (1)

Country Link
JP (1) JPS6461618A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1108997A2 (en) * 1999-12-17 2001-06-20 Matsushita Electric Works, Ltd. Infrared ray receiving element and infrared ray sensor using the same
JP2001235364A (en) * 1999-12-17 2001-08-31 Matsushita Electric Works Ltd Pyroelectric element for detecting infra-red rays

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61116628A (en) * 1984-11-12 1986-06-04 Fujitsu Ltd Pyroelectric type infrared sensor and manufacture thereof
JPS61175583A (en) * 1985-01-31 1986-08-07 Kureha Chem Ind Co Ltd Pyroelectric element for detecting moving object

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61116628A (en) * 1984-11-12 1986-06-04 Fujitsu Ltd Pyroelectric type infrared sensor and manufacture thereof
JPS61175583A (en) * 1985-01-31 1986-08-07 Kureha Chem Ind Co Ltd Pyroelectric element for detecting moving object

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1108997A2 (en) * 1999-12-17 2001-06-20 Matsushita Electric Works, Ltd. Infrared ray receiving element and infrared ray sensor using the same
JP2001235364A (en) * 1999-12-17 2001-08-31 Matsushita Electric Works Ltd Pyroelectric element for detecting infra-red rays
US6399947B2 (en) 1999-12-17 2002-06-04 Matsushita Electric Works, Ltd. Infrared ray receiving element and infrared ray sensor using the same

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