JPS54142989A - Automatic aging unit - Google Patents

Automatic aging unit

Info

Publication number
JPS54142989A
JPS54142989A JP5008378A JP5008378A JPS54142989A JP S54142989 A JPS54142989 A JP S54142989A JP 5008378 A JP5008378 A JP 5008378A JP 5008378 A JP5008378 A JP 5008378A JP S54142989 A JPS54142989 A JP S54142989A
Authority
JP
Japan
Prior art keywords
tube
operational amplifier
control circuit
voltage
current
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
JP5008378A
Other languages
Japanese (ja)
Other versions
JPH0216531B2 (en
Inventor
Kazumitsu Kawamura
Mitsuru Hachiman
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5008378A priority Critical patent/JPS54142989A/en
Publication of JPS54142989A publication Critical patent/JPS54142989A/en
Publication of JPH0216531B2 publication Critical patent/JPH0216531B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To automatize the operation by attaining aging under the experimentally- obtained conditions, by providing a tube-voltage control circuit which controls freely a X-ray tube-voltage and its current, a tube-current control circuit, and a control-signal generating circuit which supplies signals to them.
CONSTITUTION: The tube-voltage control circuit for a X-ray tube is composed of operational amplifier AP1 for an inverter, summing operational amplifier AP2, operational amplifier AP3 for comparison, NOR gates NR1 and NR2, monostable multivibrator MM1, pulse generator PG1, transistors, and an inverter. The tube- current control circuit, on the other hand, is composed of a rectifier, a pluse generator, a pulse transformer, an error-amplifying operational amplifier, other transistors, etc. In the above constitution, the tube current is set to a value which satisfies the perspective conditions and exposure is carried out by varying the tube voltage from the minimum value to the maximum value to fix the conditions, thereby attaining the program operation.
COPYRIGHT: (C)1979,JPO&Japio
JP5008378A 1978-04-28 1978-04-28 Automatic aging unit Granted JPS54142989A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5008378A JPS54142989A (en) 1978-04-28 1978-04-28 Automatic aging unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5008378A JPS54142989A (en) 1978-04-28 1978-04-28 Automatic aging unit

Publications (2)

Publication Number Publication Date
JPS54142989A true JPS54142989A (en) 1979-11-07
JPH0216531B2 JPH0216531B2 (en) 1990-04-17

Family

ID=12849117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5008378A Granted JPS54142989A (en) 1978-04-28 1978-04-28 Automatic aging unit

Country Status (1)

Country Link
JP (1) JPS54142989A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57111998A (en) * 1980-11-18 1982-07-12 Gen Electric Device for controlling x-ray tube
JPH01217831A (en) * 1988-02-24 1989-08-31 Rigaku Denki Kk Automatic ageing device for open type x-ray tube
JPH08124696A (en) * 1994-10-24 1996-05-17 Sumitomo Metal Ind Ltd Aging method of x-ray generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57111998A (en) * 1980-11-18 1982-07-12 Gen Electric Device for controlling x-ray tube
JPH01217831A (en) * 1988-02-24 1989-08-31 Rigaku Denki Kk Automatic ageing device for open type x-ray tube
JPH08124696A (en) * 1994-10-24 1996-05-17 Sumitomo Metal Ind Ltd Aging method of x-ray generator

Also Published As

Publication number Publication date
JPH0216531B2 (en) 1990-04-17

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