JPS6459407A - Cerestial body tracking device - Google Patents

Cerestial body tracking device

Info

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
Application number
JP21680087A
Other languages
Japanese (ja)
Other versions
JPH0789297B2 (en
Inventor
Koji Funatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP62216800A priority Critical patent/JPH0789297B2/en
Publication of JPS6459407A publication Critical patent/JPS6459407A/en
Publication of JPH0789297B2 publication Critical patent/JPH0789297B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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.
JP62216800A 1987-08-31 1987-08-31 Astronomical tracking device Expired - Fee Related JPH0789297B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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