JPH0299368U - - Google Patents
Info
- Publication number
- JPH0299368U JPH0299368U JP857589U JP857589U JPH0299368U JP H0299368 U JPH0299368 U JP H0299368U JP 857589 U JP857589 U JP 857589U JP 857589 U JP857589 U JP 857589U JP H0299368 U JPH0299368 U JP H0299368U
- Authority
- JP
- Japan
- Prior art keywords
- section
- zero
- interpolation section
- zero interpolation
- data
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Complex Calculations (AREA)
Description
第１図は本考案に係るＦＦＴアナライザの一実
施例を示すブロツク図、第２図はゼロデータの挿
入の様子を示す図、第３図はゼロ補間部の構成を
示す図、第４図は従来のＦＦＴアナライザの構成
を示す図である。
２……ＡＤ変換部、３……記憶部、４……演算
部、１０……ゼロ補間部、１１……マルチプレク
サ。
FIG. 1 is a block diagram showing an embodiment of the FFT analyzer according to the present invention, FIG. 2 is a diagram showing how zero data is inserted, FIG. 3 is a diagram showing the configuration of the zero interpolation section, and FIG. 1 is a diagram showing the configuration of a conventional FFT analyzer. 2...AD conversion unit, 3...Storage unit, 4...Calculation unit, 10...Zero interpolation unit, 11...Multiplexer.
Claims (1)
ＡＤ変換部と、このデジタル信号の間に少なくと
も１つのゼロデータを挿入するゼロ補間部と、こ
のゼロ補間部の出力を格納する記憶部と、この記
憶部に格納されたデータに基づいてフーリエ演算
を行う演算部とを有することを特徴とするＦＦＴ
アナライザ。 an AD conversion section that converts an input signal into a digital signal at a constant cycle; a zero interpolation section that inserts at least one zero data between the digital signals; a storage section that stores the output of the zero interpolation section; an arithmetic unit that performs a Fourier operation based on data stored in the FFT unit;
analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP857589U JPH0299368U (en) | 1989-01-27 | 1989-01-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP857589U JPH0299368U (en) | 1989-01-27 | 1989-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0299368U true JPH0299368U (en) | 1990-08-08 |
Family
ID=31214577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP857589U Pending JPH0299368U (en) | 1989-01-27 | 1989-01-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0299368U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006043511A1 (en) * | 2004-10-18 | 2006-04-27 | Nsk Ltd. | Abnormality diagnosis system for machinery |
| JP2006125976A (en) * | 2004-10-28 | 2006-05-18 | Nsk Ltd | Abnormality diagnosis system of mechanical equipment |
| WO2018105141A1 (en) * | 2016-12-08 | 2018-06-14 | 株式会社日立製作所 | Movement measurement device and movement measurement method |
-
1989
- 1989-01-27 JP JP857589U patent/JPH0299368U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006043511A1 (en) * | 2004-10-18 | 2006-04-27 | Nsk Ltd. | Abnormality diagnosis system for machinery |
| US7640139B2 (en) | 2004-10-18 | 2009-12-29 | Nsk Ltd. | Abnormality diagnosing system for mechanical equipment |
| JP2006125976A (en) * | 2004-10-28 | 2006-05-18 | Nsk Ltd | Abnormality diagnosis system of mechanical equipment |
| WO2018105141A1 (en) * | 2016-12-08 | 2018-06-14 | 株式会社日立製作所 | Movement measurement device and movement measurement method |
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