GB1506899A - Roughness measuring apparatus - Google Patents
Roughness measuring apparatusInfo
- Publication number
- GB1506899A GB1506899A GB4957175A GB4957175A GB1506899A GB 1506899 A GB1506899 A GB 1506899A GB 4957175 A GB4957175 A GB 4957175A GB 4957175 A GB4957175 A GB 4957175A GB 1506899 A GB1506899 A GB 1506899A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacitors
- dec
- roughness
- initial pressure
- sensor
- 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
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/22—Measuring arrangements characterised by the use of fluids for measuring roughness or irregularity of surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Arrangements Characterized By The Use Of Fluids (AREA)
Abstract
1506899 Measuring surface roughness CENTRE TECHNIQUE DES INDUSTRIES MECANIQUES 3 Dec 1975 [5 Dec 1974] 49571/75 Heading G1M Apparatus for measuring the roughness of a surface 14, Fig. 1, comprises surface sensor 12, pneumatic switches 7, 7' moveable either to a first position (not shown) in which two capacitors or chambers V 1 , V 2 are connected via valves 16, 5 to a gas supply A or to a second position (shown) where the two capacitors are simultaneously and respectively discharged to atmosphere through a calibrated discharge throttle 10 and the sensor 12. The differences in the dropping in pressures P 1 , P 2 , Fig. 3 (not shown) between V 1 and V 2 are measured by a manometer 6 and related to evacuation time t and to the surface roughness. The capacitors need not be of the same volume or initial pressure, and in Fig. 2 (not shown), the pneumatic switches 7, 7' may be connected also to another position where the initial pressure used for test is stabilized at (Pa) by a regulating valve 25. The gas in the second embodiment is air pressurized by a squeeze bulb 20 having non-return valves 27, 28 and a filter 29.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7439773A FR2293695A1 (en) | 1974-12-05 | 1974-12-05 | PNEUMATIC RUGOSIMETER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1506899A true GB1506899A (en) | 1978-04-12 |
Family
ID=9145579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4957175A Expired GB1506899A (en) | 1974-12-05 | 1975-12-03 | Roughness measuring apparatus |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2553813C3 (en) |
| FR (1) | FR2293695A1 (en) |
| GB (1) | GB1506899A (en) |
| IT (1) | IT1051828B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006111795A1 (en) * | 2005-04-18 | 2006-10-26 | American University Of Sharjah | Apparatus for measuring surface roughness |
| WO2010079384A1 (en) * | 2009-01-12 | 2010-07-15 | American University Of Sharjah | Apparatus for measuring bughole rating of concrete surface |
| CN109974633A (en) * | 2019-04-30 | 2019-07-05 | 蚌埠传感器系统工程有限公司 | A kind of precise detection device and detection method of workpiece surface synthesis precision |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT385125B (en) * | 1982-09-02 | 1988-02-25 | Semperit Ag | DEVICE FOR DETERMINING THE SURFACE ROUGHNESS OF SURFACES |
| DE19511882B4 (en) * | 1995-03-31 | 2005-01-05 | Audi Ag | Method for solidifying workpiece surfaces |
| CN109443653B (en) * | 2018-11-28 | 2020-09-22 | 北京东方计量测试研究所 | Gas sampling system and method for micro leak rate positive pressure leak hole calibration |
-
1974
- 1974-12-05 FR FR7439773A patent/FR2293695A1/en active Granted
-
1975
- 1975-11-29 DE DE19752553813 patent/DE2553813C3/en not_active Expired
- 1975-12-03 IT IT2996775A patent/IT1051828B/en active
- 1975-12-03 GB GB4957175A patent/GB1506899A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006111795A1 (en) * | 2005-04-18 | 2006-10-26 | American University Of Sharjah | Apparatus for measuring surface roughness |
| WO2010079384A1 (en) * | 2009-01-12 | 2010-07-15 | American University Of Sharjah | Apparatus for measuring bughole rating of concrete surface |
| CN109974633A (en) * | 2019-04-30 | 2019-07-05 | 蚌埠传感器系统工程有限公司 | A kind of precise detection device and detection method of workpiece surface synthesis precision |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2553813A1 (en) | 1976-06-10 |
| IT1051828B (en) | 1981-05-20 |
| DE2553813C3 (en) | 1980-12-18 |
| DE2553813B2 (en) | 1980-03-20 |
| FR2293695B1 (en) | 1980-04-30 |
| FR2293695A1 (en) | 1976-07-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |