JPS5440904A - Detector for emergency during turbine operation - Google Patents
Detector for emergency during turbine operationInfo
- Publication number
- JPS5440904A JPS5440904A JP10672777A JP10672777A JPS5440904A JP S5440904 A JPS5440904 A JP S5440904A JP 10672777 A JP10672777 A JP 10672777A JP 10672777 A JP10672777 A JP 10672777A JP S5440904 A JPS5440904 A JP S5440904A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- rotation number
- oscillating signal
- phase
- emergency
- 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
Links
Landscapes
- Control Of Turbines (AREA)
Abstract
PURPOSE: To discriminate a kind of emergency, by adding a rotation number signal and an oscillating signal to the previously-determined oscillating signal, by adjusting a phase in such a manner that a value, being added up for a specified period, shall become minimum, and by measuring an alternating number which crosses a signal level.
CONSTITUTION: A rotation number, signal 7 and an oscillating signal 8, being detected by a rotation number signal detector 3 and an oscillating signal detector 4 respectively are input into an electronic computer 6, a rotation number oscillating signal 12, being the same phase to a rotation number, is output by means of a rotation number signal 7 and an amplitude of a previously-memoried rotation number at a normal condition. And the rotation number oscillating signal 12 and the oscillating signal 8 are altogether added for a specified period, a phase adjusting signal 11 is produced by an addition comparator 10 and the phase of the rotation number oscillating signal 12 of a rotation number oscillation producer 9 is adjusted so as an addition value can become minimum by means of the aforesaid signal. If a phase adjusting volume becomes zero, an alternating number at a certain limit value is analized by a counter 13, and a kind of emergency is discriminated by the alternating number. Thus, the kind of emergency can be discriminated at an early stage.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10672777A JPS5440904A (en) | 1977-09-07 | 1977-09-07 | Detector for emergency during turbine operation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10672777A JPS5440904A (en) | 1977-09-07 | 1977-09-07 | Detector for emergency during turbine operation |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5440904A true JPS5440904A (en) | 1979-03-31 |
Family
ID=14440961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10672777A Pending JPS5440904A (en) | 1977-09-07 | 1977-09-07 | Detector for emergency during turbine operation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5440904A (en) |
-
1977
- 1977-09-07 JP JP10672777A patent/JPS5440904A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS56100363A (en) | Detecting apparatus of adjusting speed | |
JPS56153212A (en) | Encoder | |
KR890015607A (en) | Frequency detector | |
JPS5440904A (en) | Detector for emergency during turbine operation | |
JPS5513864A (en) | Detector for length of running vehicle | |
JPS5338944A (en) | Abnormality detector | |
JPS55155206A (en) | Position detector for moving object | |
JPS526568A (en) | Time measuring unit | |
JPS55117719A (en) | Magnetic recorder | |
JPS5669504A (en) | Automatic resistance balancing circuit of strain measuring device | |
JPS531063A (en) | Periodic fluctuation detector of continuous pulse | |
JPS5223974A (en) | Phase measuring circuit | |
JPS5544935A (en) | Compression top dead center detector for four cycle engine | |
JPS556262A (en) | Frequency detector | |
JPS5723330A (en) | Phase detector | |
JPS5692411A (en) | Detecting device for distortion of rotary shaft | |
JPS5684566A (en) | Measuring device for signal | |
JPS54996A (en) | Fire detector and fire alarm unit used for it | |
JPS5679917A (en) | Method and device for supervising vibration of rotary shaft | |
JPS571911A (en) | Measuring apparatus for angle | |
JPS5343559A (en) | Zero point adjusting method of electromagnetic flowmeter | |
JPS5434882A (en) | Neutron meter | |
JPS5421157A (en) | Straight line detection circuit | |
JPS56126722A (en) | Measuring device | |
JPS537279A (en) | Phase meter |