JPH0317535U - - Google Patents
Info
- Publication number
- JPH0317535U JPH0317535U JP7723089U JP7723089U JPH0317535U JP H0317535 U JPH0317535 U JP H0317535U JP 7723089 U JP7723089 U JP 7723089U JP 7723089 U JP7723089 U JP 7723089U JP H0317535 U JPH0317535 U JP H0317535U
- Authority
- JP
- Japan
- Prior art keywords
- counter
- pulse generator
- period
- measured
- outputs
- 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
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の好適な実施例を示したブロツ
ク図、第２図は本考案の従来例を示したブロツク
図である。
１……被測定対象物、４……第１のパルス発生
器、５……第１の計数器、６……第２の計数器、
８……第２のパルス発生器、９……切換回路。
FIG. 1 is a block diagram showing a preferred embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional example of the present invention. 1... Object to be measured, 4... First pulse generator, 5... First counter, 6... Second counter,
8...Second pulse generator, 9...Switching circuit.
Claims (1)
数する第１の計数器と、被測定対象物の周期より
少なくとも２倍の周期のパルス信号を出力する第
１のパルス発生器と、第１のパルス発生器のパル
ス信号の周期より少なくとも２倍の速さの周期の
パルス信号を出力する第２の計数器と、第１の計
数器と、第２の計数器と、切換回路とを少なくと
も備え、前記切換回路は、第１の計数器の被計数
対象を被測定対象物から第１のパルス発生器へ切
り換えるとともに第２の計数器の被計数対象を第
１のパルス発生器から第２のパルス発生器へ切り
換える切換回路であつて、また第１の計数器は、
第１の計数器の計数結果により第２の計数器の計
数を停止させる信号を出力する計数器であること
を特徴とする検査装置の自己検査装置。 a first counter that counts the number of cycles of a periodically driven object to be measured; a first pulse generator that outputs a pulse signal having a period at least twice as long as the period of the object to be measured; a second counter that outputs a pulse signal with a period at least twice as fast as the period of the pulse signal of the pulse generator, the first counter, the second counter, and a switching circuit. The switching circuit switches the object to be counted of the first counter from the object to be measured to the first pulse generator, and switches the object to be counted of the second counter from the first pulse generator to the second pulse generator. a switching circuit for switching to a pulse generator, and a first counter,
1. A self-testing device for a testing device, characterized in that the counter outputs a signal that causes a second counter to stop counting based on the counting result of the first counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7723089U JPH0317535U (en) | 1989-06-30 | 1989-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7723089U JPH0317535U (en) | 1989-06-30 | 1989-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0317535U true JPH0317535U (en) | 1991-02-21 |
Family
ID=31619423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7723089U Pending JPH0317535U (en) | 1989-06-30 | 1989-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0317535U (en) |
-
1989
- 1989-06-30 JP JP7723089U patent/JPH0317535U/ja active Pending
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