JPS5897560U - Turbine speed detection circuit - Google Patents
Turbine speed detection circuitInfo
- Publication number
- JPS5897560U JPS5897560U JP19252881U JP19252881U JPS5897560U JP S5897560 U JPS5897560 U JP S5897560U JP 19252881 U JP19252881 U JP 19252881U JP 19252881 U JP19252881 U JP 19252881U JP S5897560 U JPS5897560 U JP S5897560U
- Authority
- JP
- Japan
- Prior art keywords
- value
- turbine speed
- circuit
- frequency
- detection circuit
- 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
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、タービン検出回路のブロック図である。 FIG. 1 is a block diagram of a turbine detection circuit.
Claims (1)
ウンタで前記周波数を測定し、２個の周波数値の偏差が
小の場合、その高い方の値、前記偏差が大の場合１．前
回の測定値に近い方の値をそれぞれ選択することにより
前記タービン速度の真、 値を求める回路において
、突発的に事故等により前記２個の周波数値が共に異常
値となった場合、前回値を保持し、一定時間異常値が継
続した時、異常警報を出力し、一定時間内に異常値が解
除した時は、前記真値を求める回路動作に復帰する回路
を設けたことを特徴とするタービン速度検出回路。The turbine speed is converted into a frequency by two detectors, and the frequency is measured by a counter. If the deviation between the two frequency values is small, the higher value is selected; if the deviation is large, 1. In a circuit that calculates the true value of the turbine speed by selecting the value closest to the previous measured value, if both of the two frequency values suddenly become abnormal values due to an accident, etc., the previous value is maintained, and when the abnormal value continues for a certain period of time, an abnormality alarm is output, and when the abnormal value is canceled within the certain period of time, a circuit is provided that returns to the circuit operation for obtaining the true value. Turbine speed detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19252881U JPS5897560U (en) | 1981-12-25 | 1981-12-25 | Turbine speed detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19252881U JPS5897560U (en) | 1981-12-25 | 1981-12-25 | Turbine speed detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5897560U true JPS5897560U (en) | 1983-07-02 |
Family
ID=30105936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19252881U Pending JPS5897560U (en) | 1981-12-25 | 1981-12-25 | Turbine speed detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5897560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989006345A1 (en) * | 1987-12-28 | 1989-07-13 | Aisin Aw Co., Ltd. | Vehicle navigation system |
-
1981
- 1981-12-25 JP JP19252881U patent/JPS5897560U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989006345A1 (en) * | 1987-12-28 | 1989-07-13 | Aisin Aw Co., Ltd. | Vehicle navigation system |
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