JPH0430427U - - Google Patents
Info
- Publication number
- JPH0430427U JPH0430427U JP7099590U JP7099590U JPH0430427U JP H0430427 U JPH0430427 U JP H0430427U JP 7099590 U JP7099590 U JP 7099590U JP 7099590 U JP7099590 U JP 7099590U JP H0430427 U JPH0430427 U JP H0430427U
- Authority
- JP
- Japan
- Prior art keywords
- voltage application
- voltage
- time difference
- conduit
- detection
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は本考案の１実施例の構成を示す構成図
、第２図は第１図におけるＸ−Ｘ′断面を示す縦
断面図、第３図は第１図におけるＹ−Ｙ′断面を
示す縦断面図、第４図は第１図に示す実施例の動
作を説明する説明図、第５図は誘電体のときの検
出電極の近傍の電荷分布を示す説明図である。
１０……導管、１１Ａ，１１Ｂ……電圧印加電
極、１３Ａ，１３Ｂ……検出電極、１４……ハウ
ジング、１７……電圧印加回路、１８……増幅器
、１９……時間差演算回路、２０……流量演算回
路。
Fig. 1 is a configuration diagram showing the configuration of one embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view showing the cross section taken along the line X-X' in Fig. 1, and Fig. 3 is a cross-sectional view taken along the line Y-Y' in Fig. 1. FIG. 4 is an explanatory diagram illustrating the operation of the embodiment shown in FIG. 1, and FIG. 5 is an explanatory diagram showing the charge distribution near the detection electrode in the case of a dielectric material. 10... Conduit, 11A, 11B... Voltage application electrode, 13A, 13B... Detection electrode, 14... Housing, 17... Voltage application circuit, 18... Amplifier, 19... Time difference calculation circuit, 20... Flow rate Arithmetic circuit.
Claims (1)
された導管と、この導管の上流側に配置された一
対の電圧印加用の電圧印加電極と、この電圧印加
電極から所定の距離だけ下流側の前記導管に配置
された一対の検出電極と、前記電圧印加電極に電
圧を印加すると同時にタイミング信号を出力する
電圧印加手段と、前記検出電極で検出された検出
信号を受信増幅して検出信号を出力する増幅手段
と、前記タイミング信号の送出から前記検出信号
を受信するまでの時間差を演算する時間差演算手
段と、この時間差に基づいて前記流体の流量を演
算する流量演算手段とを具備することを特徴とす
る流量計。 A conduit through which a fluid with low conductivity flows and whose inner surface is insulated at least, a pair of voltage application electrodes for applying a voltage arranged upstream of this conduit, and the conduit located a predetermined distance downstream from this voltage application electrode. a pair of detection electrodes arranged at the voltage application means, a voltage application means for applying a voltage to the voltage application electrode and outputting a timing signal at the same time, and an amplifier for receiving and amplifying the detection signal detected by the detection electrode and outputting the detection signal. and a time difference calculation means for calculating a time difference from sending out the timing signal to receiving the detection signal, and a flow rate calculation means for calculating the flow rate of the fluid based on this time difference. Flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7099590U JPH0430427U (en) | 1990-07-03 | 1990-07-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7099590U JPH0430427U (en) | 1990-07-03 | 1990-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0430427U true JPH0430427U (en) | 1992-03-11 |
Family
ID=31607636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7099590U Pending JPH0430427U (en) | 1990-07-03 | 1990-07-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0430427U (en) |
-
1990
- 1990-07-03 JP JP7099590U patent/JPH0430427U/ja active Pending
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