JPH0438506U - - Google Patents
Info
- Publication number
- JPH0438506U JPH0438506U JP7922090U JP7922090U JPH0438506U JP H0438506 U JPH0438506 U JP H0438506U JP 7922090 U JP7922090 U JP 7922090U JP 7922090 U JP7922090 U JP 7922090U JP H0438506 U JPH0438506 U JP H0438506U
- Authority
- JP
- Japan
- Prior art keywords
- value
- maximum amplitude
- coil
- detection
- voltage
- 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 10
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
第１図は本考案の実施例を示すブロツク図、第
２図は従来の変位検出装置を示す回路図、第２図
はセンサの構成を示す断面図、第３図は第２図に
おける発振回路の１例を示す回路図である。
２１〜２４……センサ、６０……コイル電圧検
出部、６１〜６５……差動増幅回路、７０……最
大値検出部、７１〜７５……ピーク・ホールド回
路、８０……演算回路、９０……座標変換部。
Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a circuit diagram showing a conventional displacement detection device, Fig. 2 is a sectional view showing the configuration of the sensor, and Fig. 3 is the oscillation circuit in Fig. 2. FIG. 2 is a circuit diagram showing an example. 21-24...Sensor, 60...Coil voltage detection section, 61-65...Differential amplifier circuit, 70...Maximum value detection section, 71-75...Peak hold circuit, 80...Arithmetic circuit, 90 ...Coordinate transformation section.
補正 平２．１１．１９
図面の簡単な説明を次のように補正する。
明細書第１２頁第６行目〜第７行目に、「第３
図は…回路図である。」とあるのを、「第３図は
第２図におけるセンサを拡大して示した図、第４
図は第２図における発振回路の１例を示す回路図
である。」と補正します。Amendment November 19, 1992 The brief description of the drawing is amended as follows. On page 12 of the specification, lines 6 to 7, “3rd
The figure is a circuit diagram. ” is replaced with “Figure 3 is an enlarged view of the sensor in Figure 2, and Figure 4 is an enlarged view of the sensor in Figure 2.
This figure is a circuit diagram showing an example of the oscillation circuit in FIG. 2. ” and correct it.
Claims (1)
検出コイルを有する複数個のセンサ、１つの発振
器、各検出コイルの電圧を検出するコイル電圧検
出部、検出された上記各コイルの電圧の最大振幅
絶対値に比例する値をホールドする最大値検出部
、この各最大振幅絶対値に比例する値を補正する
補正回路を備え、 上記各検出コイルは直列接続されて上発振器の
動作コイルを構成し、上記補正回路は、上記各最
大振幅絶対値に比例する値を、上記検出コイルの
直列回路全電圧の基準最大振幅値に比例する値と
上記検出コイルの直列回路全電圧の最大振幅絶対
値に比例する値との比で補正することを特徴とす
る多チヤンネルの渦電流式非接触変位検出装置。[Claims for Utility Model Registration] A plurality of sensors having detection coils arranged opposite to the object with a gap in between, one oscillator, a coil voltage detection unit that detects the voltage of each detection coil, and the detected above. It is equipped with a maximum value detection section that holds a value proportional to the maximum amplitude absolute value of the voltage of each coil, and a correction circuit that corrects the value proportional to the maximum amplitude absolute value of each coil. The correction circuit converts a value proportional to each maximum amplitude absolute value into a value proportional to a reference maximum amplitude value of the series circuit total voltage of the detection coil and a value proportional to the reference maximum amplitude value of the series circuit total voltage of the detection coil. A multi-channel eddy current type non-contact displacement detection device characterized by correcting by a ratio of a value proportional to a maximum amplitude absolute value of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7922090U JPH0438506U (en) | 1990-07-27 | 1990-07-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7922090U JPH0438506U (en) | 1990-07-27 | 1990-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0438506U true JPH0438506U (en) | 1992-03-31 |
Family
ID=31623184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7922090U Pending JPH0438506U (en) | 1990-07-27 | 1990-07-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0438506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016045046A (en) * | 2014-08-21 | 2016-04-04 | アイシン精機株式会社 | Eddy current-type noncontact displacement measuring device |
-
1990
- 1990-07-27 JP JP7922090U patent/JPH0438506U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016045046A (en) * | 2014-08-21 | 2016-04-04 | アイシン精機株式会社 | Eddy current-type noncontact displacement measuring device |
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