JPS6373624U - - Google Patents
Info
- Publication number
- JPS6373624U JPS6373624U JP16764886U JP16764886U JPS6373624U JP S6373624 U JPS6373624 U JP S6373624U JP 16764886 U JP16764886 U JP 16764886U JP 16764886 U JP16764886 U JP 16764886U JP S6373624 U JPS6373624 U JP S6373624U
- Authority
- JP
- Japan
- Prior art keywords
- pass filter
- low
- frequency
- demodulating
- output
- 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
- 230000005284 excitation Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は本考案の１実施例を示すブロツク図、
第２図は第１図における実施例の各部の波形を示
す波形図、第３図は第１図に示す実施例の効果の
説明をする過度応答図である。
１０…導管、１２…励磁コイル、１３…励磁回
路、１４…前置増幅器、１５…結合点、１６，１
７…低域濾波器、１８…タイミング回路、１９…
ローパスフイルタ、２０…ハイパスフイルタ、２
１…加算点。
FIG. 1 is a block diagram showing one embodiment of the present invention.
FIG. 2 is a waveform diagram showing waveforms of various parts of the embodiment shown in FIG. 1, and FIG. 3 is a transient response diagram illustrating the effects of the embodiment shown in FIG. DESCRIPTION OF SYMBOLS 10... Conduit, 12... Excitation coil, 13... Excitation circuit, 14... Preamplifier, 15... Coupling point, 16,1
7...Low pass filter, 18...Timing circuit, 19...
Low pass filter, 20... High pass filter, 2
1...Additional points.
Claims (1)
異なつた周波数を有する磁場を供給する励磁手段
と、この励磁手段により励磁され流量に対応して
発生する信号電圧を前記第１周波数に基づいて弁
別して出力する第１復調手段と、この第１復調手
段の出力を高域濾波するハイパスフイルタと、前
記信号電圧を前記第２周波数に基づいて弁別して
復調する第２復調手段と、この第２復調手段の出
力を低域濾波するローパスフイルタと、前記ハイ
パスフイルタと前記ローパスフイルタとの各出力
を加算的に合成する加算手段とを具備し、前記ハ
イパスフイルタ側の伝達関数と前記ローパスフイ
ルタ側の伝達関数との和が１になるようにしたこ
とを特徴とする電磁流量計。 an excitation means for supplying magnetic fields having two different frequencies, a first frequency and a second frequency lower than the first frequency; and a signal voltage excited by the excitation means to be generated corresponding to the flow rate. a first demodulating means for separately outputting the output; a high-pass filter for high-pass filtering the output of the first demodulating means; a second demodulating means for discriminating and demodulating the signal voltage based on the second frequency; a low-pass filter for low-pass filtering the output of the means; and an addition means for additively combining the respective outputs of the high-pass filter and the low-pass filter, the transfer function of the high-pass filter side and the transfer function of the low-pass filter side. An electromagnetic flowmeter characterized in that the sum of the functions is 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16764886U JPH0537215Y2 (en) | 1986-10-31 | 1986-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16764886U JPH0537215Y2 (en) | 1986-10-31 | 1986-10-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6373624U true JPS6373624U (en) | 1988-05-17 |
| JPH0537215Y2 JPH0537215Y2 (en) | 1993-09-21 |
Family
ID=31099774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16764886U Expired - Lifetime JPH0537215Y2 (en) | 1986-10-31 | 1986-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0537215Y2 (en) |
-
1986
- 1986-10-31 JP JP16764886U patent/JPH0537215Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0537215Y2 (en) | 1993-09-21 |
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