JPH0178912U - - Google Patents
Info
- Publication number
- JPH0178912U JPH0178912U JP1987175210U JP17521087U JPH0178912U JP H0178912 U JPH0178912 U JP H0178912U JP 1987175210 U JP1987175210 U JP 1987175210U JP 17521087 U JP17521087 U JP 17521087U JP H0178912 U JPH0178912 U JP H0178912U
- Authority
- JP
- Japan
- Prior art keywords
- value
- counting
- oscillation
- count
- converting
- 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
- 230000010355 oscillation Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図は従来における直線化回路の具体例、第
２図は本考案の一実施例における全体のブロツク
図である。
図中、１は演算増幅器、２は検出用コイル、３
は発振回路、４は カウンタ（計数手段）、５は
制御回路、６は演算 回路（演算手段）、７は記
憶回路（記憶手段）、８は変換回路（変換手段）
である。
FIG. 1 is a specific example of a conventional linearization circuit, and FIG. 2 is an overall block diagram of an embodiment of the present invention. In the figure, 1 is an operational amplifier, 2 is a detection coil, and 3
is an oscillation circuit, 4 is a counter (counting means), 5 is a control circuit, 6 is an arithmetic circuit (arithmetic means), 7 is a memory circuit (memory means), 8 is a conversion circuit (conversion means)
It is.
Claims (1)
する検出用コイルを発振要素とした発振回路と、
この発振回路の発振出力信号を計数する計数手段
と、計数手段からの計数値の各値に対応した非直
線性補償値が予め記憶されている記憶手段と、前
記計数手段からの計数値に対応した非直線性補償
値を記憶手段から読み出し、この読み出された非
直線性補償値に基づいて前記計数値に補償演算処
理を施す演算手段と、演算手段からの出力デジタ
ル値をアナログ値に変換する変換手段とを具備す
ることを特徴とした磁気近接センサ。 An oscillation circuit that uses a detection coil as an oscillation element whose inductance changes depending on the proximity of the object to be detected;
A counting means for counting the oscillation output signals of the oscillation circuit, a storage means in which nonlinearity compensation values corresponding to each value of the count from the counting means are stored in advance, and a memory means corresponding to the count from the counting means. a calculation means for reading out the nonlinearity compensation value from the storage means and performing a compensation calculation process on the counted value based on the read nonlinearity compensation value; and converting the output digital value from the calculation means into an analog value. A magnetic proximity sensor characterized by comprising: a conversion means for converting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175210U JPH0178912U (en) | 1987-11-17 | 1987-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175210U JPH0178912U (en) | 1987-11-17 | 1987-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0178912U true JPH0178912U (en) | 1989-05-26 |
Family
ID=31467017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987175210U Pending JPH0178912U (en) | 1987-11-17 | 1987-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0178912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015055553A (en) * | 2013-09-12 | 2015-03-23 | 株式会社日進製作所 | High-frequency oscillation type non-contact displacement sensor |
-
1987
- 1987-11-17 JP JP1987175210U patent/JPH0178912U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015055553A (en) * | 2013-09-12 | 2015-03-23 | 株式会社日進製作所 | High-frequency oscillation type non-contact displacement sensor |
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