File:Metra Blansko analog frequency meter 02.jpg
Original file (4,498 × 4,120 pixels, file size: 1.5 MB, MIME type: image/jpeg)
Captions
Summary edit
DescriptionMetra Blansko analog frequency meter 02.jpg |
English: Analog vibrating reed frequency meter. That's an analog frequency meter based on multiple metal strips (reeds). Each of the metallic strips has a slightly different mechanical resonant frequency. It also contains coils to be connected to an AC current.
The metallic strips, with a resonant frequency very close to the frequency of the current in the coil, will vibrate in order to indicate the frequency on the scale. This device has been used to measure the frequency in the range of a 25Hz up to 105Hz, on 3 independent scales: 25 to 45Hz, 45 to 65Hz, and 65 to 105Hz. The input can be selected to accommodate a large of measurement AC voltages: 50 – 250Vac. Made by Metra Blansko, Czechoslovakia, 1950s. |
Date | |
Source | Own work |
Author | Mister rf |
Licensing edit
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This image has been assessed using the Quality image guidelines and is considered a Quality image.
العربية ∙ جازايرية ∙ беларуская ∙ беларуская (тарашкевіца) ∙ български ∙ বাংলা ∙ català ∙ čeština ∙ Cymraeg ∙ Deutsch ∙ Schweizer Hochdeutsch ∙ Zazaki ∙ Ελληνικά ∙ English ∙ Esperanto ∙ español ∙ eesti ∙ euskara ∙ فارسی ∙ suomi ∙ français ∙ galego ∙ עברית ∙ हिन्दी ∙ hrvatski ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ Jawa ∙ ქართული ∙ 한국어 ∙ kurdî ∙ Lëtzebuergesch ∙ lietuvių ∙ македонски ∙ മലയാളം ∙ मराठी ∙ Bahasa Melayu ∙ Nederlands ∙ Norfuk / Pitkern ∙ polski ∙ português ∙ português do Brasil ∙ rumantsch ∙ română ∙ русский ∙ sicilianu ∙ slovenčina ∙ slovenščina ∙ shqip ∙ српски / srpski ∙ svenska ∙ தமிழ் ∙ తెలుగు ∙ ไทย ∙ Tagalog ∙ Türkçe ∙ toki pona ∙ українська ∙ vèneto ∙ Tiếng Việt ∙ 中文 ∙ 中文(简体) ∙ 中文(繁體) ∙ +/− |
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 12:12, 13 November 2022 | 4,498 × 4,120 (1.5 MB) | Mister rf (talk | contribs) | Uploaded own work with UploadWizard |
You cannot overwrite this file.
File usage on Commons
The following 4 pages use this file:
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Orientation | Normal |
---|---|
Software used | ACD Systems Digital Imaging |
File change date and time | 01:33, 13 November 2022 |
Y and C positioning | Centered |
DateTime subseconds | 488 |