JPS57194499A - Pulse x-ray device - Google Patents

Pulse x-ray device

Info

Publication number
JPS57194499A
JPS57194499A JP7840081A JP7840081A JPS57194499A JP S57194499 A JPS57194499 A JP S57194499A JP 7840081 A JP7840081 A JP 7840081A JP 7840081 A JP7840081 A JP 7840081A JP S57194499 A JPS57194499 A JP S57194499A
Authority
JP
Japan
Prior art keywords
tube voltage
output
amplifier
feed
delayed
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
Application number
JP7840081A
Other languages
Japanese (ja)
Inventor
Yoshizo Tsuzaki
Tsuguo Kishida
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.)
Shimadzu Corp
Shimazu Seisakusho KK
Original Assignee
Shimadzu Corp
Shimazu Seisakusho KK
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 Shimadzu Corp, Shimazu Seisakusho KK filed Critical Shimadzu Corp
Priority to JP7840081A priority Critical patent/JPS57194499A/en
Publication of JPS57194499A publication Critical patent/JPS57194499A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/32—Supply voltage of the X-ray apparatus or tube

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • X-Ray Techniques (AREA)

Abstract

PURPOSE:To suppress oscillations at a leading edge of a pulse-shaped tube voltage and obtain an accurate tube voltage by feeding back a part of the input of a photocoupler into a comparator, which compares the tube voltage with a reference voltage, through a feed-back circuit consisting of a differential circuit. CONSTITUTION:A differential circuit consisting of a variable resistor 92 and a condenser 93 is connected between input and output terminals of an OP amplifier 91 composing a comparator, which compares a tube voltage with a reference voltage, constituting a feed-back circuit. If the rise time of the tube voltage is delayed at the leading edge due to a delayed response, that is, the rise time of the tube voltage detected by tube voltage detectors 10a, 10b is delayed and the difference with the reference voltage is kept large for a long time, and as a result the output from the OP amplifier 91 tends to be kept near the maximum value for a long time, then owing to a connection of such a feed-back circuit, the output from the OP amplifier 91 is differentiated and the resultant output is fed back to the tube voltage side, thereby allowing smooth build-up.
JP7840081A 1981-05-23 1981-05-23 Pulse x-ray device Pending JPS57194499A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7840081A JPS57194499A (en) 1981-05-23 1981-05-23 Pulse x-ray device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7840081A JPS57194499A (en) 1981-05-23 1981-05-23 Pulse x-ray device

Publications (1)

Publication Number Publication Date
JPS57194499A true JPS57194499A (en) 1982-11-30

Family

ID=13660969

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7840081A Pending JPS57194499A (en) 1981-05-23 1981-05-23 Pulse x-ray device

Country Status (1)

Country Link
JP (1) JPS57194499A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55117898A (en) * 1979-02-28 1980-09-10 Shimadzu Corp X-ray generator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55117898A (en) * 1979-02-28 1980-09-10 Shimadzu Corp X-ray generator

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