JPS57193811A - Monitor controlling system - Google Patents

Monitor controlling system

Info

Publication number
JPS57193811A
JPS57193811A JP56076765A JP7676581A JPS57193811A JP S57193811 A JPS57193811 A JP S57193811A JP 56076765 A JP56076765 A JP 56076765A JP 7676581 A JP7676581 A JP 7676581A JP S57193811 A JPS57193811 A JP S57193811A
Authority
JP
Japan
Prior art keywords
switch
voltage
ground
operator
resistor
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
JP56076765A
Other languages
Japanese (ja)
Inventor
Koichi Tokunaga
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 JP56076765A priority Critical patent/JPS57193811A/en
Publication of JPS57193811A publication Critical patent/JPS57193811A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To make the operation easy, by providing a grip confirming switch for a handle of an operation switch and illuminating a display light on a monitored instrument corresponding to this operating switch when the operator grips the operating switch. CONSTITUTION:When the operator 1 grips an operating handle 7 and touches a touch button switch, the switch is connected to ground through the body of the operator 1 via an electrostatic capacitance to ground 21. A closed circuit consisting of a resistor 13, a resistor 16, a coupling electrostatic capacitor 23, the operator 1, the electrostatic capacitor to ground 21, and ground from an AC power supply 22 is formed, and a voltage V1 superimposing a prescribed DC voltage on an Ac voltage is applied across the resistor 16, i.e. to the gate of a field effect transistor, and an amplified voltage V2 is inputted to a Schmitt trigger circuit 18. Since this voltage is set so that it exceeds a threshold value of the Schmitt trigger circuit 18, an output of the Schmitt trigger circuit 18 changes from ''L'' to ''H'' level, a relay 20 is operable, a contact 20a is closed, a display lamp 6 is illuminated, allowing to quickly and easily confirm instruments to be monitored.
JP56076765A 1981-05-22 1981-05-22 Monitor controlling system Pending JPS57193811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56076765A JPS57193811A (en) 1981-05-22 1981-05-22 Monitor controlling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56076765A JPS57193811A (en) 1981-05-22 1981-05-22 Monitor controlling system

Publications (1)

Publication Number Publication Date
JPS57193811A true JPS57193811A (en) 1982-11-29

Family

ID=13614685

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56076765A Pending JPS57193811A (en) 1981-05-22 1981-05-22 Monitor controlling system

Country Status (1)

Country Link
JP (1) JPS57193811A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896678A (en) * 1986-12-12 1990-01-30 Olympus Optical Co., Ltd. Endoscopic treating tool
US4909789A (en) * 1986-03-28 1990-03-20 Olympus Optical Co., Ltd. Observation assisting forceps
US5271385A (en) * 1990-03-29 1993-12-21 United States Surgical Corporation Abdominal cavity organ retractor
US5620458A (en) * 1994-03-16 1997-04-15 United States Surgical Corporation Surgical instruments useful for endoscopic spinal procedures

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4909789A (en) * 1986-03-28 1990-03-20 Olympus Optical Co., Ltd. Observation assisting forceps
US4896678A (en) * 1986-12-12 1990-01-30 Olympus Optical Co., Ltd. Endoscopic treating tool
US5271385A (en) * 1990-03-29 1993-12-21 United States Surgical Corporation Abdominal cavity organ retractor
US5620458A (en) * 1994-03-16 1997-04-15 United States Surgical Corporation Surgical instruments useful for endoscopic spinal procedures
US5755732A (en) * 1994-03-16 1998-05-26 United States Surgical Corporation Surgical instruments useful for endoscopic spinal procedures

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