JPS54146676A - Acoustical measuring device - Google Patents
Acoustical measuring deviceInfo
- Publication number
- JPS54146676A JPS54146676A JP5445778A JP5445778A JPS54146676A JP S54146676 A JPS54146676 A JP S54146676A JP 5445778 A JP5445778 A JP 5445778A JP 5445778 A JP5445778 A JP 5445778A JP S54146676 A JPS54146676 A JP S54146676A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- opening
- filling quantity
- microphone
- bottle
- 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.)
- Pending
Links
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
PURPOSE:To provide the subject device wherein the opening part of a hollow object to be measured is arranged in an acoustic field or a white noise field swept in frequency, and acoustical measuring means is used, thereby to be able to accurately measure the filling quantity, capacity, liquid surface level and the like. CONSTITUTION:A loud speaker 5 and a microphone 6 are provided at positions near to the opening of a bottle 2 carried to a measuring position 4 by means of a carrier 3. The field in the vicinity of the opening 2a assumes a resonant state by a sound wave generated from a speaker 5, and the frequency sound pressure characteristic shows a remarkable peak at an inherent vibrational number. This sound pressure is detected by a microphone 6, and an analyzing output corresponding to the frequency showing the peak from a frequency analyzer 8 is taken out. A discriminating device 9 discriminates whether or not the frequency detected on the basis of the analyzing output is on a liquid filling level, that is, within the frequency range corresponding to the suitable value of the filling quantity, and discrimination whether or not the filling quantity of the bottle 2 is properly carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5445778A JPS54146676A (en) | 1978-05-10 | 1978-05-10 | Acoustical measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5445778A JPS54146676A (en) | 1978-05-10 | 1978-05-10 | Acoustical measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54146676A true JPS54146676A (en) | 1979-11-16 |
Family
ID=12971199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5445778A Pending JPS54146676A (en) | 1978-05-10 | 1978-05-10 | Acoustical measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54146676A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58502021A (en) * | 1981-11-27 | 1983-11-24 | モトロ−ラ・インコ−ポレ−テツド | Sound pressure volume measuring device |
| JPS5972013A (en) * | 1982-10-18 | 1984-04-23 | Asahi Kosan Kk | Measuring method of length of buried piping |
| JPS62121307A (en) * | 1985-11-22 | 1987-06-02 | Yasushi Ishii | Acoustic displacement gauge |
| JPH02263135A (en) * | 1988-12-28 | 1990-10-25 | Nikka Densoku Kk | Method and device for inspecting sealed container |
| JPH04138235U (en) * | 1991-06-14 | 1992-12-24 | 日本電信電話株式会社 | Ultrasonic liquid level meter |
| WO2007029519A1 (en) * | 2005-09-02 | 2007-03-15 | Saika Technological Institute Foundation | Distance measuring device and distance measuring method |
| DE102017102036A1 (en) | 2017-02-02 | 2018-08-02 | Endress+Hauser Flowtec Ag | Device and method for monitoring the filling |
-
1978
- 1978-05-10 JP JP5445778A patent/JPS54146676A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58502021A (en) * | 1981-11-27 | 1983-11-24 | モトロ−ラ・インコ−ポレ−テツド | Sound pressure volume measuring device |
| JPS5972013A (en) * | 1982-10-18 | 1984-04-23 | Asahi Kosan Kk | Measuring method of length of buried piping |
| JPS62121307A (en) * | 1985-11-22 | 1987-06-02 | Yasushi Ishii | Acoustic displacement gauge |
| JPH02263135A (en) * | 1988-12-28 | 1990-10-25 | Nikka Densoku Kk | Method and device for inspecting sealed container |
| JPH04138235U (en) * | 1991-06-14 | 1992-12-24 | 日本電信電話株式会社 | Ultrasonic liquid level meter |
| WO2007029519A1 (en) * | 2005-09-02 | 2007-03-15 | Saika Technological Institute Foundation | Distance measuring device and distance measuring method |
| DE102017102036A1 (en) | 2017-02-02 | 2018-08-02 | Endress+Hauser Flowtec Ag | Device and method for monitoring the filling |
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