JPH01120291U - - Google Patents
Info
- Publication number
- JPH01120291U JPH01120291U JP1656788U JP1656788U JPH01120291U JP H01120291 U JPH01120291 U JP H01120291U JP 1656788 U JP1656788 U JP 1656788U JP 1656788 U JP1656788 U JP 1656788U JP H01120291 U JPH01120291 U JP H01120291U
- Authority
- JP
- Japan
- Prior art keywords
- rotating body
- sound
- abnormal
- systems
- abnormality
- 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
- 230000005856 abnormality Effects 0.000 claims description 5
- 238000012806 monitoring device Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Emergency Alarm Devices (AREA)
Description
第１図はこの考案の一実施例による回転体の異
常監視装置を示す構成図、第２図ａ，ｂ，ｃは比
較演算器の出力接点の状態を示す状態図、第３図
は従来の回転体の異常監視装置を示す構成図であ
る。
１は集音マイクロホン、２は増幅器、３はレベ
ル計、４はモニタスピーカ、５はモニタスピーカ
用音量調整器、６は電線、７は電源ユニツト、８
は負荷電流検出ＣＴ、９は記憶設定器、１０は比
較演算器、１１は比較演算器、１０ａ，１１ａは
比較演算器出力接点（偏差大でＯＮ）、１０ｂ，
１１ｂは比較演算器出力接点（偏差大でＯＦＦ）
、１２は記憶設定時ＯＮする接点、１３はモニタ
切替スイツチである。なお図中、同一符号は同一
、又は相当部分を示す。
Fig. 1 is a configuration diagram showing an abnormality monitoring device for a rotating body according to an embodiment of this invention, Fig. 2 a, b, and c are state diagrams showing the states of the output contacts of a comparator, and Fig. 3 is a conventional FIG. 2 is a configuration diagram showing an abnormality monitoring device for a rotating body. 1 is a sound collecting microphone, 2 is an amplifier, 3 is a level meter, 4 is a monitor speaker, 5 is a volume adjuster for the monitor speaker, 6 is an electric wire, 7 is a power supply unit, 8
is a load current detection CT, 9 is a memory setting device, 10 is a comparator, 11 is a comparator, 10a, 11a are comparator output contacts (ON when the deviation is large), 10b,
11b is the comparator output contact (turns off when the deviation is large)
, 12 is a contact that is turned ON when setting the memory, and 13 is a monitor changeover switch. In the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
ホンより入力し、回転体の各負荷電流に相当する
回転音をあらかじめ記憶設定しておき、一定時間
毎に２系統の集音マイクロホンより入力した回転
音と、その時の回転体の負荷電流をもとに、あら
かじめ記憶設定した入力と比較演算し、一定偏差
以上になれば、異常であることを警報出力し、１
系統のみ異常の場合は、検出装置の異常を表示、
２系統とも異常の場合は回転体の異常であること
を表示することを特徴とする回転体の異常監視装
置。 The rotational sound emitted by the rotating body is input through two systems of sound-collecting microphones, and the rotational sound corresponding to each load current of the rotating body is stored and set in advance, and the rotational sound is inputted from the two systems of sound-collecting microphones at regular intervals. Based on the sound and the load current of the rotating body at that time, it is compared with the input stored in advance, and if it exceeds a certain deviation, an alarm is output to indicate an abnormality.
If only the system is abnormal, the abnormality of the detection device will be displayed.
An abnormality monitoring device for a rotating body, characterized in that when both systems are abnormal, a message indicating that the rotating body is abnormal is displayed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1656788U JPH01120291U (en) | 1988-02-10 | 1988-02-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1656788U JPH01120291U (en) | 1988-02-10 | 1988-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01120291U true JPH01120291U (en) | 1989-08-15 |
Family
ID=31229613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1656788U Pending JPH01120291U (en) | 1988-02-10 | 1988-02-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01120291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10290810A (en) * | 1997-04-21 | 1998-11-04 | Osada Res Inst Ltd | Hand piece for odontotherapy |
-
1988
- 1988-02-10 JP JP1656788U patent/JPH01120291U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10290810A (en) * | 1997-04-21 | 1998-11-04 | Osada Res Inst Ltd | Hand piece for odontotherapy |
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