JPH0167524U - - Google Patents
Info
- Publication number
- JPH0167524U JPH0167524U JP1987163568U JP16356887U JPH0167524U JP H0167524 U JPH0167524 U JP H0167524U JP 1987163568 U JP1987163568 U JP 1987163568U JP 16356887 U JP16356887 U JP 16356887U JP H0167524 U JPH0167524 U JP H0167524U
- Authority
- JP
- Japan
- Prior art keywords
- harmonic
- fundamental frequency
- mass flowmeter
- turbine
- flow rate
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は本考案の質量流量計の校正装置の具体
的実施例を示すブロツク図、第２図は第１図の動
作の説明に供する信号波形図、第３図は質量流量
計における校正装置の概要を説明するための図で
ある。
１……質量流量発信器（発信器）、２……回転
体（インペラ）、４……タービン、５……制止ス
プリング、８……第２高調波成分のみを通過させ
る手段、９……リフアレンス信号を作る手段、１
０……流体の校正質量流量を表示する手段。
Fig. 1 is a block diagram showing a specific embodiment of the calibration device for a mass flowmeter of the present invention, Fig. 2 is a signal waveform diagram for explaining the operation of Fig. 1, and Fig. 3 is a calibration device for a mass flowmeter. FIG. DESCRIPTION OF SYMBOLS 1... Mass flow transmitter (transmitter), 2... Rotating body (impeller), 4... Turbine, 5... Stopping spring, 8... Means for passing only the second harmonic component, 9... Reference Means for creating a signal, 1
0...Means for displaying the calibration mass flow rate of the fluid.
Claims (1)
流体の質量流量を検出するタービンやマグネシン
を有する検出部を具備する質量流量計発信器と、
該質量流量計発振器から出力される基本周波数と
前記タービンの位置により前記基本周波数に対し
て変化する第２高調波との合成信号を入力して前
記第２高調波のみを通過させる手段と、前記基本
周波数を入力して前記手段を通過した第２高調波
と同期するリフアレンス信号を作る手段と、これ
等２つの手段からの信号を用いて前記測定流体の
校正質量流量値を表示する手段と、を具備して成
ることを特徴とする質量流量計発信器の校正装置
。 a mass flowmeter transmitter comprising a detection section having a turbine or magnesine that detects the mass flow rate of a measurement fluid to which torque is applied based on the rotation of a rotating body;
means for inputting a composite signal of the fundamental frequency output from the mass flowmeter oscillator and a second harmonic that varies with respect to the fundamental frequency depending on the position of the turbine, and passing only the second harmonic; means for inputting a fundamental frequency to produce a reference signal synchronized with a second harmonic passed through said means; and means for displaying a calibrated mass flow rate value of said measuring fluid using signals from these two means; A calibration device for a mass flowmeter transmitter, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987163568U JPH067323Y2 (en) | 1987-10-26 | 1987-10-26 | Mass flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987163568U JPH067323Y2 (en) | 1987-10-26 | 1987-10-26 | Mass flow meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0167524U true JPH0167524U (en) | 1989-05-01 |
| JPH067323Y2 JPH067323Y2 (en) | 1994-02-23 |
Family
ID=31448405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987163568U Expired - Lifetime JPH067323Y2 (en) | 1987-10-26 | 1987-10-26 | Mass flow meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067323Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011102051A (en) * | 2009-11-10 | 2011-05-26 | Yanmar Co Ltd | Riding type agricultural working machine |
-
1987
- 1987-10-26 JP JP1987163568U patent/JPH067323Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011102051A (en) * | 2009-11-10 | 2011-05-26 | Yanmar Co Ltd | Riding type agricultural working machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH067323Y2 (en) | 1994-02-23 |
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