JPH02109795U - - Google Patents
Info
- Publication number
- JPH02109795U JPH02109795U JP1873889U JP1873889U JPH02109795U JP H02109795 U JPH02109795 U JP H02109795U JP 1873889 U JP1873889 U JP 1873889U JP 1873889 U JP1873889 U JP 1873889U JP H02109795 U JPH02109795 U JP H02109795U
- Authority
- JP
- Japan
- Prior art keywords
- speed
- water
- ship
- transducer
- display device
- 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
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
第１図は本考案に係る船速測定表示装置の一実
施例におけるブロツク図、第２図は第１図に示さ
れる例の表示器における表示例である。
１２…送信器、１４…送受切換回路、１６…送
受波器、１８…受信器、２０…周波数計数器、２
２…速度演算器、２４…加速度演算器、２６…表
示器。
FIG. 1 is a block diagram of an embodiment of a ship speed measurement and display device according to the present invention, and FIG. 2 is an example of a display on the display of the example shown in FIG. 12... Transmitter, 14... Transmission/reception switching circuit, 16... Transducer/receiver, 18... Receiver, 20... Frequency counter, 2
2... Velocity calculator, 24... Acceleration calculator, 26... Display device.
Claims (1)
中に発射し、海底あるいは海中から反射せしめら
れる超音波パルスを送受波器を介して受波する受
信器を含む船速測定表示装置において、 受波された超音波パルスからドツプラ周波数偏
位を計測すると共に、航行船舶の対地速度および
／または対水速度を算出する第１の演算手段と、 前記対地速度および／または対水速度から航行
船舶の加速度を算出する第２の演算手段と、 前記対地速度および／または対水速度と加速度
の値を同時にまたは夫々単独に表示する表示手段
と、 を備えることを特徴とする船速測定表示装置。[Claims for Utility Model Registration] Includes a receiver that emits ultrasonic pulses from a transmitter into the sea via a transducer and receives ultrasonic pulses reflected from the seabed or underwater via the transducer. In the ship speed measurement and display device, a first calculation means that measures a Doppler frequency deviation from a received ultrasonic pulse and calculates a ground speed and/or a water speed of a navigating ship; or a second calculation means for calculating the acceleration of the sailing vessel from the speed relative to the water; and a display means for displaying the values of the speed above the ground and/or the speed relative to the water and the acceleration simultaneously or each independently. Ship speed measurement and display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1873889U JPH02109795U (en) | 1989-02-20 | 1989-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1873889U JPH02109795U (en) | 1989-02-20 | 1989-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02109795U true JPH02109795U (en) | 1990-09-03 |
Family
ID=31233644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1873889U Pending JPH02109795U (en) | 1989-02-20 | 1989-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02109795U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009092577A (en) * | 2007-10-11 | 2009-04-30 | Japan Radio Co Ltd | Tidal current measuring device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5839971A (en) * | 1981-09-03 | 1983-03-08 | Japan Radio Co Ltd | Ultrasonic doppler speed detecting method |
| JPS63158488A (en) * | 1986-12-22 | 1988-07-01 | Furuno Electric Co Ltd | Ultrasonic ship's speedometer |
-
1989
- 1989-02-20 JP JP1873889U patent/JPH02109795U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5839971A (en) * | 1981-09-03 | 1983-03-08 | Japan Radio Co Ltd | Ultrasonic doppler speed detecting method |
| JPS63158488A (en) * | 1986-12-22 | 1988-07-01 | Furuno Electric Co Ltd | Ultrasonic ship's speedometer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009092577A (en) * | 2007-10-11 | 2009-04-30 | Japan Radio Co Ltd | Tidal current measuring device |
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