JPS6459407A - Cerestial body tracking device - Google Patents
Cerestial body tracking deviceInfo
- Publication number
- JPS6459407A JPS6459407A JP21680087A JP21680087A JPS6459407A JP S6459407 A JPS6459407 A JP S6459407A JP 21680087 A JP21680087 A JP 21680087A JP 21680087 A JP21680087 A JP 21680087A JP S6459407 A JPS6459407 A JP S6459407A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- reference pulse
- correction
- generating
- frequency
- 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.)
- Granted
Links
Abstract
PURPOSE:To eliminate the influence of a temperature variation caused by a regional difference and a seasonal difference for executing an observation, by constituting the titled device so that a correction pulse for correcting an error in case a tracking error has been generated can be obtained by bringing an output signal of a crystal oscillator for obtaining a reference pulse, to logical operation. CONSTITUTION:The titled device is provided with a reference pulse generating part 100 having a crystal oscillator for generating a prescribed reference pulse for tracking a celestial body, and a correction generating part 200 for generating plural correction pulses which have a prescribed ratio against a frequency of this reference pulse, and also, whose frequencies and different from each other, based on the reference pulse, a frequency dividing pulse of this reference pulse, and a multiple pulse of this reference pulse. Also, this device is provided with a driving pulse selecting circuit part 300 for selecting the reference pulse, the frequency dividing pulse of this reference pulse, the multiple pulse of this reference pulse, and one pulse of plural correction pulses, and supplying them to a pulse motor. In such a way, even if a temperature of the observation environment is varied, the frequency of the correction pulse becomes an extremely stable one.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62216800A JPH0789297B2 (en) | 1987-08-31 | 1987-08-31 | Astronomical tracking device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62216800A JPH0789297B2 (en) | 1987-08-31 | 1987-08-31 | Astronomical tracking device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6459407A true JPS6459407A (en) | 1989-03-07 |
JPH0789297B2 JPH0789297B2 (en) | 1995-09-27 |
Family
ID=16694081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62216800A Expired - Fee Related JPH0789297B2 (en) | 1987-08-31 | 1987-08-31 | Astronomical tracking device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0789297B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011098055A (en) * | 2009-11-05 | 2011-05-19 | Kyoraku Sangyo Kk | Game machine, performance control method, and performance control program |
DE112017008089B4 (en) | 2017-11-17 | 2021-11-25 | Mitsubishi Electric Corporation | Device for monitoring a three-dimensional space, method for monitoring a three-dimensional space and program for monitoring a three-dimensional space |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5687921A (en) * | 1979-12-20 | 1981-07-17 | Fujitsu Ltd | Pulse converting circuit |
JPS56153411A (en) * | 1980-04-28 | 1981-11-27 | Oki Electric Ind Co Ltd | Servo control system |
JPS61120968A (en) * | 1984-11-19 | 1986-06-09 | Matsushita Electric Ind Co Ltd | Generation circuit for direction of rotation pulse |
JPS62168109A (en) * | 1986-01-20 | 1987-07-24 | Nec Corp | Automatic tracking device for astronomical telescope |
-
1987
- 1987-08-31 JP JP62216800A patent/JPH0789297B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5687921A (en) * | 1979-12-20 | 1981-07-17 | Fujitsu Ltd | Pulse converting circuit |
JPS56153411A (en) * | 1980-04-28 | 1981-11-27 | Oki Electric Ind Co Ltd | Servo control system |
JPS61120968A (en) * | 1984-11-19 | 1986-06-09 | Matsushita Electric Ind Co Ltd | Generation circuit for direction of rotation pulse |
JPS62168109A (en) * | 1986-01-20 | 1987-07-24 | Nec Corp | Automatic tracking device for astronomical telescope |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011098055A (en) * | 2009-11-05 | 2011-05-19 | Kyoraku Sangyo Kk | Game machine, performance control method, and performance control program |
DE112017008089B4 (en) | 2017-11-17 | 2021-11-25 | Mitsubishi Electric Corporation | Device for monitoring a three-dimensional space, method for monitoring a three-dimensional space and program for monitoring a three-dimensional space |
Also Published As
Publication number | Publication date |
---|---|
JPH0789297B2 (en) | 1995-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |