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JPS5324884A - Hardness tester - Google Patents

Hardness tester

Info

Publication number
JPS5324884A
JPS5324884A JP9905176A JP9905176A JPS5324884A JP S5324884 A JPS5324884 A JP S5324884A JP 9905176 A JP9905176 A JP 9905176A JP 9905176 A JP9905176 A JP 9905176A JP S5324884 A JPS5324884 A JP S5324884A
Authority
JP
Japan
Prior art keywords
hardness tester
indentation
inclination
precision
constitute
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.)
Granted
Application number
JP9905176A
Other languages
Japanese (ja)
Other versions
JPS6034699B2 (en
Inventor
Junpei Tsujiuchi
Toshio Honda
Hiroshi Okuda
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP9905176A priority Critical patent/JPS6034699B2/en
Priority to GB34186/77A priority patent/GB1563570A/en
Priority to US05/825,398 priority patent/US4147052A/en
Priority to CH1015677A priority patent/CH617772A5/fr
Priority to DE19772737554 priority patent/DE2737554A1/en
Publication of JPS5324884A publication Critical patent/JPS5324884A/en
Publication of JPS6034699B2 publication Critical patent/JPS6034699B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To improve the precision in the hardness measurement by obtaining the diagonal lengths of indentation from the inclination of the outputs of array elements, which constitute two image sensors, to determine the mean value.
COPYRIGHT: (C)1978,JPO&Japio
JP9905176A 1976-08-19 1976-08-19 hardness tester Expired JPS6034699B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP9905176A JPS6034699B2 (en) 1976-08-19 1976-08-19 hardness tester
GB34186/77A GB1563570A (en) 1976-08-19 1977-08-15 Hardness tester
US05/825,398 US4147052A (en) 1976-08-19 1977-08-17 Hardness tester
CH1015677A CH617772A5 (en) 1976-08-19 1977-08-18
DE19772737554 DE2737554A1 (en) 1976-08-19 1977-08-19 DEVICE FOR HARDNESS TESTING

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9905176A JPS6034699B2 (en) 1976-08-19 1976-08-19 hardness tester

Publications (2)

Publication Number Publication Date
JPS5324884A true JPS5324884A (en) 1978-03-08
JPS6034699B2 JPS6034699B2 (en) 1985-08-10

Family

ID=14236771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9905176A Expired JPS6034699B2 (en) 1976-08-19 1976-08-19 hardness tester

Country Status (1)

Country Link
JP (1) JPS6034699B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956148A (en) * 1982-09-25 1984-03-31 Matsuzawa Seiki Kk Indentation hardness tester
JPS59122546U (en) * 1983-02-04 1984-08-17 住友金属工業株式会社 hardness measuring device
JPS59200941A (en) * 1983-12-26 1984-11-14 Matsuzawa Seiki Kk Indentation hardness tester
EP0126776A1 (en) * 1982-09-25 1984-12-05 Matsuzawa Seiki Kabushikikaisha Indentation hardness tester
JPS59216037A (en) * 1983-05-23 1984-12-06 Shimadzu Corp Automatic hardness meter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956148A (en) * 1982-09-25 1984-03-31 Matsuzawa Seiki Kk Indentation hardness tester
EP0126776A1 (en) * 1982-09-25 1984-12-05 Matsuzawa Seiki Kabushikikaisha Indentation hardness tester
JPH0220931B2 (en) * 1982-09-25 1990-05-11 Matsuzawa Seiki Kk
JPS59122546U (en) * 1983-02-04 1984-08-17 住友金属工業株式会社 hardness measuring device
JPS59216037A (en) * 1983-05-23 1984-12-06 Shimadzu Corp Automatic hardness meter
JPS59200941A (en) * 1983-12-26 1984-11-14 Matsuzawa Seiki Kk Indentation hardness tester
JPH0334819B2 (en) * 1983-12-26 1991-05-24 Matsuzawa Seiki Kk

Also Published As

Publication number Publication date
JPS6034699B2 (en) 1985-08-10

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