JPS5915917U - vortex flow meter - Google Patents
vortex flow meterInfo
- Publication number
- JPS5915917U JPS5915917U JP11037282U JP11037282U JPS5915917U JP S5915917 U JPS5915917 U JP S5915917U JP 11037282 U JP11037282 U JP 11037282U JP 11037282 U JP11037282 U JP 11037282U JP S5915917 U JPS5915917 U JP S5915917U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric sensor
- ratio
- vortex
- noise component
- component based
- 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Measuring Volume Flow (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来より一般に使用されている渦流針の従来例
、第２図は第１図の圧電センサの構成説明図、第３図は
第２図の動作説明図、第４図は第１図の電気接続図、第
５図は第１図の動作説明図、第６図は本考案の一実施例
の要部構成説明図である。
１・・・管路、１１・・・ノズル、２・・・受力体、２
１・・・フランジ部、２２・・・凹部、３・・・ねじ、
４ａ′。
４ｂ’・・・圧電センサ、４１ａ’ 、 ４ ｌｂ’
・・・素子本体、４２ａ′〜４５ａ’ 、 ４２ａ’
〜４５ａ′・・・薄膜電極、５ａ、 ５ｂ、 ５ｃ
・・・絶縁体、６・・・固定体、７・・・電気回路、７
１・・・第１人力処理回路、７２・・・第２人力処理回
路。Fig. 1 is a conventional example of a vortex needle that has been commonly used in the past, Fig. 2 is an explanatory diagram of the configuration of the piezoelectric sensor of Fig. 1, Fig. 3 is an explanatory diagram of the operation of Fig. 2, and Fig. 4 is an illustration of the piezoelectric sensor of Fig. 1. FIG. 5 is an explanatory diagram of the operation of FIG. 1, and FIG. 6 is an explanatory diagram of the main part configuration of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Pipeline, 11... Nozzle, 2... Force receiving body, 2
1... Flange part, 22... Recessed part, 3... Screw,
4a'. 4b'...Piezoelectric sensor, 41a', 4 lb'
...Element body, 42a' to 45a', 42a'
~45a'... Thin film electrode, 5a, 5b, 5c
...Insulator, 6...Fixed body, 7...Electric circuit, 7
1... First human power processing circuit, 72... Second human power processing circuit.
Claims (1)
体の流速または流量を測定する渦流量計において、前記
受力体の凹部内に固定され板状の圧電素子本体と該本体
の両面に設けられた薄膜の電極とを具える第１．第２の
圧電センサを有するセンサ部と、前記第１の圧電センサ
の出力と第２の圧電センサの出力とが加えられた外乱振
動に基づくノイズ成分を除去する演算器とを備え、前記
第１の圧電センサと第２の圧電センサとを外乱振動に基
づくノイズ成分の比と渦の揚力に基づく信号成分の比が
異なる二点に配置し、かつ、ノイズ成分の検出感度比が
常に所要比になるように前記第１の圧電センサの電極面
積に対して第２の圧電センサの電極の面積を異ならしめ
たことを特徴とする渦流量計。In a vortex flowmeter that measures the flow velocity or flow rate of a fluid by detecting the alternating force acting on a force receiving body due to a Karman vortex, a plate-shaped piezoelectric element body fixed in a recess of the force receiving body and on both sides of the body are used. and a thin film electrode provided. a sensor section having a second piezoelectric sensor; and an arithmetic unit that removes a noise component based on disturbance vibration to which the output of the first piezoelectric sensor and the output of the second piezoelectric sensor are added; The piezoelectric sensor and the second piezoelectric sensor are arranged at two points where the ratio of the noise component based on disturbance vibration and the ratio of the signal component based on the lift of the vortex are different, and the detection sensitivity ratio of the noise component is always at the required ratio. A vortex flowmeter characterized in that the area of the electrode of the second piezoelectric sensor is different from the area of the electrode of the first piezoelectric sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11037282U JPS5915917U (en) | 1982-07-21 | 1982-07-21 | vortex flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11037282U JPS5915917U (en) | 1982-07-21 | 1982-07-21 | vortex flow meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5915917U true JPS5915917U (en) | 1984-01-31 |
| JPS6244339Y2 JPS6244339Y2 (en) | 1987-11-21 |
Family
ID=30256712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11037282U Granted JPS5915917U (en) | 1982-07-21 | 1982-07-21 | vortex flow meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5915917U (en) |
-
1982
- 1982-07-21 JP JP11037282U patent/JPS5915917U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6244339Y2 (en) | 1987-11-21 |
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