日本財団 図書館

共通ヘッダを読みとばす


Top > 技術 > 海洋工学.船舶工学.兵器 > 成果物情報

JSMEA NEWS No.77

 事業名 舶用工業の海外広報宣伝
 団体名 日本舶用工業会  


AVP-8110 Torsional Vibration Processor

 

Akasaka Diesels Limited has developed the AVP 8110 torsional vibration processor, an optical sensor-based non-contact precision torsional vibration processor, now being effectively used for measuring torsional vibration of marine propulsion shafting systems.

Compact and light for easy portability, this new type of torsional vibration processor was developed to permit ready measurement even by non-experts and to allow on-site analysis of data on a real-time basis as data is received.

Whereas Geiger's torsiograph or FM telemeter-based strain gauges are the most commonly used devices for measuring torsional vibration of marine propulsion shafting systems, both of these instruments require specialized knowledge and complex work for the analysis of measurements. Geiger's torsiograph entails complex analysis, and their analytical accuracy heavily relies on the analyzer's skills. Measurement with a strain gauge takes many man-hours to set up the gauge and, moreover, to conduct on-site analyses real-time a great deal of preparatory work is required, including the installation of a general-purpose FFT analyzer.

The AVP 8110 torsional vibration processor, which uses an optical sensor, can measure torsional vibration without being in contact with the object of measurement. In place of an optical sensor, a rotary encoder or an electromagnetic pickup can also be used to accept signals, resulting in greater freedom of sensing for some objects and substantial simplification of the measurement procedure. Measured data are automatically analyzed on a real-time basis, so that no expert knowledge is needed and the man-hours required for measurement and analysis can be significantly saved.

The torsional vibration processor consists of an arithmetic processor for sensed data and a frequency analyzing unit. The latter, using a built-in FFT analyzer, can also be utilized for analysis of vibration and sound in general. A portable instrument, the AVP is compact enough to be contained in an attache case (410 mm wide x 320 mm long x 170 mm thick) and it weighs only about 10 Kg.

 

AVP-8110

003-1.gif

 

Specifications

 

AVP-8110 Torsional Vibration Processor

◆ Detecting part

Double sensor: Zebra tape & Optical sensor

Single sensor: Rotary encoder, etc.

◆ Torsional vibration operating part

Input section

Input signal wave: Sine wave & Square wave

Frequency range of input signal: 20Hz〜20kHz

Maximum operation range: 10kHz

Output section

Fluctuation of angular displacement: ±10deg./±10V

◆ Frequency analyzing part

Power spectrum

Time-axis waveform

Off line r/min. tracking analysis: Auto tracking & Manual tracking

Hardcopy function: Thermal type serial dot recorder

Memory function: memory card

 

Akasaka Diesels Limited

Address: 2626 Kasumigaseki Bldg., 2-5, Kasumigaseki 3-chome, Chiyoda-ku, Tokyo 101-6026

Tel: +81-3-3581-9781 Fax: +81-3-3580-1731

 

 

 

BACK   CONTENTS   NEXT

 






サイトに関するご意見・ご質問・お問合せ   サイトマップ   個人情報保護

日本財団会長笹川陽平ブログはこちら



ランキング
注目度とは?
成果物アクセスランキング
3,793位
(31,092成果物中)

成果物アクセス数
1,250

集計期間:成果物公開〜現在
更新日: 2019年5月18日

関連する他の成果物

1.JSMEA NEWS No.78
2.「舶用工業の海外広報宣伝」の報告書
3.各国舶用機関の生産動向 第23号 目次
  [ 同じカテゴリの成果物 ]


アンケートにご協力
御願いします

この成果物は
お役に立ちましたか?


とても役に立った
まあまあ
普通
いまいち
全く役に立たなかった


この成果物をどのような
目的でご覧になりましたか?


レポート等の作成の
参考資料として
研究の一助として
関係者として参照した
興味があったので
間違って辿り着いただけ


ご意見・ご感想

ここで入力されたご質問・資料請求には、ご回答できません。






その他・お問い合わせ
ご質問は こちら から