FR1217447A - Décibelmètre - Google Patents
DécibelmètreInfo
- Publication number
- FR1217447A FR1217447A FR787493A FR787493A FR1217447A FR 1217447 A FR1217447 A FR 1217447A FR 787493 A FR787493 A FR 787493A FR 787493 A FR787493 A FR 787493A FR 1217447 A FR1217447 A FR 1217447A
- Authority
- FR
- France
- Prior art keywords
- decibelmeter
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/22—Devices using combined reduction and oxidation, e.g. redox arrangement or solion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals
- G06G7/1813—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using electrochemical elements, e.g. solion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/02—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof using combined reduction-oxidation reactions, e.g. redox arrangement or solion
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1217447XA | 1958-02-26 | 1958-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1217447A true FR1217447A (fr) | 1960-05-03 |
Family
ID=22398522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR787493A Expired FR1217447A (fr) | 1958-02-26 | 1959-02-23 | Décibelmètre |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1217447A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2331005A1 (fr) * | 1974-10-24 | 1977-06-03 | Shine Patent Ab | Procede et dispositif pour mesurer et enregistrer le bruit |
-
1959
- 1959-02-23 FR FR787493A patent/FR1217447A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2331005A1 (fr) * | 1974-10-24 | 1977-06-03 | Shine Patent Ab | Procede et dispositif pour mesurer et enregistrer le bruit |
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