GB1458210A - Determining accuracy of form of surfaces - Google Patents
Determining accuracy of form of surfacesInfo
- Publication number
- GB1458210A GB1458210A GB5870173A GB5870173A GB1458210A GB 1458210 A GB1458210 A GB 1458210A GB 5870173 A GB5870173 A GB 5870173A GB 5870173 A GB5870173 A GB 5870173A GB 1458210 A GB1458210 A GB 1458210A
- Authority
- GB
- United Kingdom
- Prior art keywords
- workpiece
- signals
- circuit
- accuracy
- determining
- 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
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
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/12—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
- G01B7/13—Internal diameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/28—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
- G01B7/282—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures for measuring roundness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/34—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring roughness or irregularity of surfaces
- G01B7/345—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring roughness or irregularity of surfaces for measuring evenness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
1458210 Measurement of surfaces electrically RANK ORGANISATION Ltd 4 Dec 1974 [19 Dec 1973] 58701/73 Heading GIN The accuracy of form of a workpiece surface 18 may be determined by means of a sensing head 11 in the form of an array of elements which are electrically insulated from one another, a circuit being provided for determining the capacitance or inductance between the surface 18 and each element to produce, when sequentially coupled to each element, a plurality of signals representative thereof. The elements are shaped and arranged so as to substantially lie in a surface which represents at least part of the desired form of surface 18. As described, the circuit includes an oscillator 23 for applying an oscillating electric signal to the workpiece, a switch unit 19 for sequentially switching each element into the circuit, and a measuring unit 20 for producing an analogue output signal representative of the inductance or capacitance. A digital computer 25 may also be provided to store the received signals and to produce control signals to actuate the switch means. Each element may be fixed so that one face of each thereof define together a cylindrical surface for determining the accuracy of a cylindrical hole, as shown, or an external cylindrical surface, or define a planar surface for checking a planar surface. Alternatively, each element may be mounted on a member 34, Figure 3, resiliently biased so that a range of workpiece diameters may be accommodated by a single sensor head. A reference surface may also be provided too so as to allow comparison of the measured signals therewith.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5870173A GB1458210A (en) | 1973-12-19 | 1973-12-19 | Determining accuracy of form of surfaces |
FR7441836A FR2255577A1 (en) | 1973-12-19 | 1974-12-18 | |
JP14512174A JPS5096253A (en) | 1973-12-19 | 1974-12-19 | |
IT7069474A IT1027130B (en) | 1973-12-19 | 1974-12-19 | DEVICE FOR DETERMINING THE ACCURACY OF THE SHAPE OF THE SURFACE OF A PIECE |
CH1695374A CH579262A5 (en) | 1973-12-19 | 1974-12-19 | |
DE19742460276 DE2460276A1 (en) | 1973-12-19 | 1974-12-19 | METHOD AND DEVICE FOR DETERMINING THE SHAPING ACCURACY OF A WORKPIECE SURFACE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5870173A GB1458210A (en) | 1973-12-19 | 1973-12-19 | Determining accuracy of form of surfaces |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1458210A true GB1458210A (en) | 1976-12-08 |
Family
ID=10482221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5870173A Expired GB1458210A (en) | 1973-12-19 | 1973-12-19 | Determining accuracy of form of surfaces |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5096253A (en) |
CH (1) | CH579262A5 (en) |
DE (1) | DE2460276A1 (en) |
FR (1) | FR2255577A1 (en) |
GB (1) | GB1458210A (en) |
IT (1) | IT1027130B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5823563B2 (en) * | 1978-02-09 | 1983-05-16 | 興亜石油株式会社 | Corrosion wear detection method |
JPS61292011A (en) * | 1985-05-20 | 1986-12-22 | Fujitsu Ltd | Measuring method for out-of-roundness of precise mass-rpoduced parts |
DE4013916C2 (en) * | 1990-04-30 | 1999-04-15 | Merten Kg Pulsotronic | Device for recognizing the shape and nature of the lateral surfaces of cylindrical metallic workpieces |
JP2556375Y2 (en) * | 1990-06-20 | 1997-12-03 | ミツミ電機株式会社 | Battery case |
-
1973
- 1973-12-19 GB GB5870173A patent/GB1458210A/en not_active Expired
-
1974
- 1974-12-18 FR FR7441836A patent/FR2255577A1/fr not_active Withdrawn
- 1974-12-19 CH CH1695374A patent/CH579262A5/xx not_active IP Right Cessation
- 1974-12-19 DE DE19742460276 patent/DE2460276A1/en active Pending
- 1974-12-19 IT IT7069474A patent/IT1027130B/en active
- 1974-12-19 JP JP14512174A patent/JPS5096253A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CH579262A5 (en) | 1976-08-31 |
DE2460276A1 (en) | 1975-07-03 |
FR2255577A1 (en) | 1975-07-18 |
IT1027130B (en) | 1978-11-20 |
JPS5096253A (en) | 1975-07-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |