JPS554572A - Zero adjusting device of unbalance testing machine - Google Patents
Zero adjusting device of unbalance testing machineInfo
- Publication number
- JPS554572A JPS554572A JP7792678A JP7792678A JPS554572A JP S554572 A JPS554572 A JP S554572A JP 7792678 A JP7792678 A JP 7792678A JP 7792678 A JP7792678 A JP 7792678A JP S554572 A JPS554572 A JP S554572A
- Authority
- JP
- Japan
- Prior art keywords
- converter
- signal
- counter
- unbalance
- adjusting device
- 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
Landscapes
- Testing Of Balance (AREA)
Abstract
PURPOSE: To improve the accuracy of zero compensation by incorporating an A/D converter and a D/A converter.
CONSTITUTION: An up-down counter 6 as an A/D converter and a D/A converter 7 are connected and added to a comparator 5. Then, if in an X-component compensating circuit Ax the unbalance signal Sx from the multiplier 3 connected to a pickup 1 via subtractor 2 is larger than zero, the up-down counter 6 receives the signal corresponding to the signal Sx of the comparator 5 and acts as an up-counter. When the count number of the up counter 6 increases, the output of the D/A converter 7 generates large sine waves and the sinω0t of the increased amplitude thereof is phase-inverted by the subtractor 2 and is supplied to the signal from the pickup 1. Hence, the unbalance signals Sx, Sy of X,Y components from the respective multipliers 3,4 are subjected to A/D conversion and D/A conversion then phase inversion and subtraction and therefore the intended object is achieved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7792678A JPS554572A (en) | 1978-06-27 | 1978-06-27 | Zero adjusting device of unbalance testing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7792678A JPS554572A (en) | 1978-06-27 | 1978-06-27 | Zero adjusting device of unbalance testing machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS554572A true JPS554572A (en) | 1980-01-14 |
Family
ID=13647685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7792678A Pending JPS554572A (en) | 1978-06-27 | 1978-06-27 | Zero adjusting device of unbalance testing machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS554572A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59171828A (en) * | 1983-03-22 | 1984-09-28 | Shimadzu Corp | Compensating voltage generator for soft type dynamic balancing machine |
JPS6138435A (en) * | 1984-07-30 | 1986-02-24 | Akashi Seisakusho Co Ltd | Eccentricity compensation apparatus of balance testing machine |
-
1978
- 1978-06-27 JP JP7792678A patent/JPS554572A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59171828A (en) * | 1983-03-22 | 1984-09-28 | Shimadzu Corp | Compensating voltage generator for soft type dynamic balancing machine |
JPS6138435A (en) * | 1984-07-30 | 1986-02-24 | Akashi Seisakusho Co Ltd | Eccentricity compensation apparatus of balance testing machine |
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