JPH0381083B2 - - Google Patents
Info
- Publication number
- JPH0381083B2 JPH0381083B2 JP18494885A JP18494885A JPH0381083B2 JP H0381083 B2 JPH0381083 B2 JP H0381083B2 JP 18494885 A JP18494885 A JP 18494885A JP 18494885 A JP18494885 A JP 18494885A JP H0381083 B2 JPH0381083 B2 JP H0381083B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- thin film
- conversion circuit
- thickness
- optical
- 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
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18494885A JPS6244613A (ja) | 1985-08-22 | 1985-08-22 | 膜厚測定装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18494885A JPS6244613A (ja) | 1985-08-22 | 1985-08-22 | 膜厚測定装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6244613A JPS6244613A (ja) | 1987-02-26 |
| JPH0381083B2 true JPH0381083B2 (cs) | 1991-12-27 |
Family
ID=16162154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18494885A Granted JPS6244613A (ja) | 1985-08-22 | 1985-08-22 | 膜厚測定装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6244613A (cs) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2692120C1 (ru) * | 2018-11-01 | 2019-06-21 | федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный авиационный технический университет" | Способ определения толщины покрытия в ходе процесса плазменно-электролитического оксидирования |
-
1985
- 1985-08-22 JP JP18494885A patent/JPS6244613A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6244613A (ja) | 1987-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4334779A (en) | Non-contact optical apparatus for measuring the length or speed of a relatively moving surface | |
| KR100217714B1 (ko) | 레이저 다이오드가 결합된 간섭형 광온도 센싱 시스템 | |
| JPH0823588B2 (ja) | 基準位置から動いている再帰反射ターゲットの変位を測定する装置 | |
| JP2828162B2 (ja) | 絶対測定用の干渉測定方法およびこの方法に適したレーザー干渉計装置 | |
| JP2000205814A (ja) | ヘテロダイン干渉計 | |
| JPH0379642B2 (cs) | ||
| US6585908B2 (en) | Shallow angle interference process and apparatus for determining real-time etching rate | |
| JP2746446B2 (ja) | 光学計測装置 | |
| US6462823B1 (en) | Wavelength meter adapted for averaging multiple measurements | |
| JPH0439038B2 (cs) | ||
| JP2000035315A (ja) | 透明材料の厚さを測定するための方法及び装置 | |
| JP2000206244A (ja) | 測距装置 | |
| JPS63122906A (ja) | 膜厚測定装置 | |
| JP2725434B2 (ja) | Fmヘテロダイン法を用いたアブソリュート測長方法およびアブソリュート測長器 | |
| JPH0381083B2 (cs) | ||
| JP3552386B2 (ja) | レーザ干渉変位計 | |
| JPH0119041Y2 (cs) | ||
| JPS5837496B2 (ja) | 光学ファイバの測長方法 | |
| CN110823517A (zh) | 测量激光反馈系统中反馈因子c的方法 | |
| JPH0593613A (ja) | 微小間隔測定装置及び方法 | |
| JP2687631B2 (ja) | アブソリュート測長器の干渉信号処理方法 | |
| JPS5960203A (ja) | 膜厚変化測定装置 | |
| JPS6344106A (ja) | 膜厚測定方法 | |
| JP2629319B2 (ja) | 膜厚モニター装置 | |
| JP2000012522A (ja) | エッチング速度測定装置および測定方法 |