JPH034224U - - Google Patents
Info
- Publication number
- JPH034224U JPH034224U JP6418789U JP6418789U JPH034224U JP H034224 U JPH034224 U JP H034224U JP 6418789 U JP6418789 U JP 6418789U JP 6418789 U JP6418789 U JP 6418789U JP H034224 U JPH034224 U JP H034224U
- Authority
- JP
- Japan
- Prior art keywords
- damping circuit
- flow rate
- output
- circuit
- powder
- 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
- 238000013016 damping Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は本考案の一実施例を示す全体系統図、
第２図は第１図の自動追跡ダンピング回路を示す
部分拡大図、第３図は本考案による流量表示器指
示値を示す線図である。第４図は公知の粉粒体流
量計による粉体流量の計測要領を示す全体系統図
、第５図は第４図の流量表示器指示値を示す線図
である。
１…検出部、２…信号変換部、２ａ…増巾器、
３…表示器、４…ＰＩ制御回路、１１…１次ダン
ピング回路、１２…自動追跡ダンピング回路、１
３…メモリ回路、１４…比較器、１５…信号選択
器、１６…２次ダンピング回路。
FIG. 1 is an overall system diagram showing an embodiment of the present invention.
FIG. 2 is a partially enlarged view of the automatic tracking damping circuit of FIG. 1, and FIG. 3 is a diagram showing the indicated value of a flow rate indicator according to the present invention. FIG. 4 is an overall system diagram showing the procedure for measuring the powder flow rate using a known powder flow meter, and FIG. 5 is a diagram showing the indicated value of the flow rate indicator in FIG. 4. 1... Detection section, 2... Signal conversion section, 2a... Amplifier,
3... Display device, 4... PI control circuit, 11... Primary damping circuit, 12... Automatic tracking damping circuit, 1
3...Memory circuit, 14...Comparator, 15...Signal selector, 16...Secondary damping circuit.
Claims (1)
示器に入力するようにした粉体流量計において、
内蔵するローパスフイルターにより同粉体流量検
出部の出力信号を平滑にする１次ダンピング回路
と、同１次ダンピング回路に縦列接続された２次
ダンピング回路と、メモリ、比較器及び信号選択
器よりなり緩やかな流量変動のときは上記２次ダ
ンピング回路の出力を表示器に入力し、急激な流
量変動のときは上記１次ダンピング回路の出力を
同表示器に入力する自動時定数切換回路とを具え
たことを特徴とする自動追跡ダンピング回路付粉
体流量計。 In a powder flowmeter in which the output of a powder flow rate detection section is input to a display device via a signal conversion section,
It consists of a primary damping circuit that uses a built-in low-pass filter to smooth the output signal of the powder flow rate detection section, a secondary damping circuit that is connected in series to the primary damping circuit, a memory, a comparator, and a signal selector. and an automatic time constant switching circuit that inputs the output of the secondary damping circuit to the display when there is a gradual flow rate fluctuation, and inputs the output of the primary damping circuit to the display when there is a sudden flow rate fluctuation. A powder flow meter with an automatic tracking damping circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6418789U JPH034224U (en) | 1989-06-01 | 1989-06-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6418789U JPH034224U (en) | 1989-06-01 | 1989-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH034224U true JPH034224U (en) | 1991-01-17 |
Family
ID=31594901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6418789U Pending JPH034224U (en) | 1989-06-01 | 1989-06-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH034224U (en) |
-
1989
- 1989-06-01 JP JP6418789U patent/JPH034224U/ja active Pending
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