JPS5719604A - Length measuring device - Google Patents

Length measuring device

Info

Publication number
JPS5719604A
JPS5719604A JP9433080A JP9433080A JPS5719604A JP S5719604 A JPS5719604 A JP S5719604A JP 9433080 A JP9433080 A JP 9433080A JP 9433080 A JP9433080 A JP 9433080A JP S5719604 A JPS5719604 A JP S5719604A
Authority
JP
Japan
Prior art keywords
scale
vernier
graduation
main
main scale
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
JP9433080A
Other languages
Japanese (ja)
Other versions
JPH033161B2 (en
Inventor
Terumizu Murai
Manabu Ando
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.)
Noritake Co Ltd
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
Noritake Co Ltd
Nippon Toki 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 Agency of Industrial Science and Technology, Noritake Co Ltd, Nippon Toki Co Ltd filed Critical Agency of Industrial Science and Technology
Priority to JP9433080A priority Critical patent/JPS5719604A/en
Publication of JPS5719604A publication Critical patent/JPS5719604A/en
Publication of JPH033161B2 publication Critical patent/JPH033161B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/20—Slide gauges
    • G01B3/205—Slide gauges provided with a counter for digital indication of the measured dimension

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE:To obtain the length measuring device characterized by small thermal expansion and excellent wear resistance by constituting the main bodies of a main scale and a vernier scale by ceramics. CONSTITUTION:The main bodies of the main scale 1 and the vernier scale of vernier calipers are formed by a highly pure fine ceramic material. A recessed groove 5 is provided in the surface of the main scale 1 in the axial direction, and main scale graduation 6 comprising an electric conductor is provided in said groove 5 by a means of printed wiring and the like, by utilizing insulating property of ceramics. Similar vernier scale graduation 7 comprising an electric conductor is provided on the vernier scale with respect to the main scale graduation 6. The graduation interval of said vernier graduation 7 is the same as that of well known vernier calipers. The contact of the main scale graduation 6 and the vernier scale graduation is electrically read, and the value is displayed on a digital display part 8 on the vernier scale.
JP9433080A 1980-07-09 1980-07-09 Length measuring device Granted JPS5719604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9433080A JPS5719604A (en) 1980-07-09 1980-07-09 Length measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9433080A JPS5719604A (en) 1980-07-09 1980-07-09 Length measuring device

Publications (2)

Publication Number Publication Date
JPS5719604A true JPS5719604A (en) 1982-02-01
JPH033161B2 JPH033161B2 (en) 1991-01-17

Family

ID=14107263

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9433080A Granted JPS5719604A (en) 1980-07-09 1980-07-09 Length measuring device

Country Status (1)

Country Link
JP (1) JPS5719604A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550507A (en) * 1982-12-15 1985-11-05 Mitutoyo Mfg. Co., Ltd. Thread construction in length measuring instrument and method for manufacturing thread construction
CN109458965A (en) * 2018-12-19 2019-03-12 辽宁铁道职业技术学院 Construction of Civil Engineering measuring device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550507A (en) * 1982-12-15 1985-11-05 Mitutoyo Mfg. Co., Ltd. Thread construction in length measuring instrument and method for manufacturing thread construction
CN109458965A (en) * 2018-12-19 2019-03-12 辽宁铁道职业技术学院 Construction of Civil Engineering measuring device

Also Published As

Publication number Publication date
JPH033161B2 (en) 1991-01-17

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