JPH03117730U - - Google Patents
Info
- Publication number
- JPH03117730U JPH03117730U JP2714490U JP2714490U JPH03117730U JP H03117730 U JPH03117730 U JP H03117730U JP 2714490 U JP2714490 U JP 2714490U JP 2714490 U JP2714490 U JP 2714490U JP H03117730 U JPH03117730 U JP H03117730U
- Authority
- JP
- Japan
- Prior art keywords
- electrical signal
- electromagnetic flowmeter
- preamplifier
- converts
- smoothing
- 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
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は本考案の一実施例の電源部回路構成図
、第２図は励磁電流と励磁電圧の波形図、第３図
は励磁電流波形の他例を示す図である。
１……励磁コイル、２……整流回路、３……平
滑用コンデンサ、４……定電圧レギユレータ、６
……抵抗器。
FIG. 1 is a circuit diagram of a power supply section according to an embodiment of the present invention, FIG. 2 is a waveform diagram of exciting current and exciting voltage, and FIG. 3 is a diagram showing another example of exciting current waveforms. 1... Excitation coil, 2... Rectifier circuit, 3... Smoothing capacitor, 4... Constant voltage regulator, 6
……Resistor.
Claims (1)
検出器と、前記電気信号を増幅・演算し正規化さ
れた電気信号に変換する変換部を別置するいわゆ
る分離設置形の電磁流量計の検出部内に設置され
、磁界を発生する励磁コイルに励磁電流が流れる
ことによつて前記励磁コイル両端に発生する電圧
を受けてこれを整流する整流回路と、整流された
電流を平滑する平滑回路と、平滑後に定電圧化を
行なう定電圧回路からなる電源部を持つ電磁流量
計のプリアンプにおいて、励磁コイルと直列に抵
抗器を挿入したことを特徴とする電磁流量計のプ
リアンプ。 A so-called separate installation type electromagnetic flowmeter has a detector that forms a flow path and converts the fluid flow rate into an electrical signal, and a converter that amplifies and calculates the electrical signal and converts it into a normalized electrical signal. a rectifier circuit installed in the detection unit that receives and rectifies the voltage generated across the excitation coil when an excitation current flows through the excitation coil that generates a magnetic field; and a smoothing circuit that smoothes the rectified current. , a preamplifier for an electromagnetic flowmeter having a power supply section consisting of a constant voltage circuit that stabilizes the voltage after smoothing, the preamplifier for an electromagnetic flowmeter being characterized in that a resistor is inserted in series with an exciting coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2714490U JPH03117730U (en) | 1990-03-19 | 1990-03-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2714490U JPH03117730U (en) | 1990-03-19 | 1990-03-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03117730U true JPH03117730U (en) | 1991-12-05 |
Family
ID=31530012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2714490U Pending JPH03117730U (en) | 1990-03-19 | 1990-03-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03117730U (en) |
-
1990
- 1990-03-19 JP JP2714490U patent/JPH03117730U/ja active Pending
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