JPH0175889U - - Google Patents
Info
- Publication number
- JPH0175889U JPH0175889U JP1987171175U JP17117587U JPH0175889U JP H0175889 U JPH0175889 U JP H0175889U JP 1987171175 U JP1987171175 U JP 1987171175U JP 17117587 U JP17117587 U JP 17117587U JP H0175889 U JPH0175889 U JP H0175889U
- Authority
- JP
- Japan
- Prior art keywords
- limit value
- circuit
- ultrasonic
- gate signal
- signal
- 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.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 9
- 238000012935 Averaging Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
第１図は本考案の１実施例の構成を示すブロツ
ク図、第２図は第１図におけるゲート信号発生回
路の具体的な構成を示す回路図、第３図は第２図
における回路の動作を説明する波形図、第４図は
第１図に示すホールド信号を得る構成の一部を変
更した実施例を示す回路図、第５図は従来の超音
波測距装置の構成を示すブロツク図、第６図は第
５図における超音波測距装置の動作を説明する波
形図、第７図は第５図におけるウインドウ回路の
具体的な構成を示す回路図、第８図は第５図にお
ける時間／電圧変換回路の具体的な構成を示す回
路図、第９図は第５図に示すレンジ変換回路の具
体的に構成を示す回路図、第１０図は第９図に示
すレンジ変換回路の動作を説明するための波形図
である。
１０……クロツク回路、１１……励振回路、１
２……送波器、１４……受波器、１６……ゲート
信号発生回路、１８……時間／電圧変換回路、２
１……レンジ変換回路、２２……フリツプフロツ
プ、２４……単安定マルチ、２６……平均化回路
、２７……ウインドウ回路、２９……ホールド回
路、３０……出力回路、３１……ゲート信号発生
回路、ＣＬＫ……クロツク、ＥＸＣ……駆動信号
、ＴＶＳ……温度信号、ＳＩＧ，ＲＥＣ……受信
信号、ＧＡＴ，ＧＡＴ′……ゲート信号、ＡＶＳ
……平均値出力、Ｖｗ……ウインドウ信号、ＨＬ
Ｄ……ホールド信号、ＤＩＶ，ＤＩＶ′……距離
電圧、ＤＩＳ，ＤＩＳ′……距離信号、ＲＧＮ，
ＲＧＮ′……レンジ出力。
FIG. 1 is a block diagram showing the configuration of one embodiment of the present invention, FIG. 2 is a circuit diagram showing the specific configuration of the gate signal generation circuit in FIG. 1, and FIG. 3 is the operation of the circuit in FIG. 2. FIG. 4 is a circuit diagram showing an embodiment in which a part of the configuration for obtaining the hold signal shown in FIG. , FIG. 6 is a waveform diagram explaining the operation of the ultrasonic distance measuring device in FIG. 5, FIG. 7 is a circuit diagram showing the specific configuration of the window circuit in FIG. 5, and FIG. FIG. 9 is a circuit diagram showing the specific configuration of the time/voltage conversion circuit, FIG. 9 is a circuit diagram showing the specific configuration of the range conversion circuit shown in FIG. 5, and FIG. 10 is a circuit diagram showing the specific configuration of the range conversion circuit shown in FIG. 9. FIG. 3 is a waveform diagram for explaining the operation. 10...Clock circuit, 11...Excitation circuit, 1
2... Transmitter, 14... Receiver, 16... Gate signal generation circuit, 18... Time/voltage conversion circuit, 2
1... Range conversion circuit, 22... Flip-flop, 24... Monostable multi, 26... Averaging circuit, 27... Window circuit, 29... Hold circuit, 30... Output circuit, 31... Gate signal generation Circuit, CLK...Clock, EXC...Drive signal, TVS...Temperature signal, SIG, REC...Reception signal, GAT, GAT'...Gate signal, AVS
...Average value output, Vw...Window signal, HL
D...Hold signal, DIV, DIV'...Distance voltage, DIS, DIS'...Distance signal, RGN,
RGN'...Range output.
Claims (1)
出しこの測定物からの反射パルスの伝播時間から
前記測定物までの距離を測定する超音波測距装置
において、前記超音波信号の送出のときから一定
勾配で変化する温度補償されたランプ電圧を発生
する時間／電圧変換回路と、このランプ電圧を前
記距離に対応したゼロ点とスパンを持つレンジ出
力に変換するレンジ変換回路と、このレンジ出力
に対して前記スパンより大きい上限値と前記ゼロ
点より小さい下限値とが設定され前記レンジ出力
がこの上限値と下限値との間にあるときのみゲー
ト信号を発生するゲート信号発生回路を具備する
ことを特徴とする超音波測距装置。 In an ultrasonic distance measuring device that intermittently sends a burst-like ultrasonic signal to an object to be measured and measures the distance to the object from the propagation time of a reflected pulse from the object, when the ultrasonic signal is sent out. a time/voltage conversion circuit that generates a temperature-compensated lamp voltage that changes at a constant slope from An upper limit value larger than the span and a lower limit value smaller than the zero point are set for the range output, and the gate signal generation circuit generates a gate signal only when the range output is between the upper limit value and the lower limit value. An ultrasonic ranging device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17117587U JPH0526547Y2 (en) | 1987-11-09 | 1987-11-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17117587U JPH0526547Y2 (en) | 1987-11-09 | 1987-11-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0175889U true JPH0175889U (en) | 1989-05-23 |
| JPH0526547Y2 JPH0526547Y2 (en) | 1993-07-05 |
Family
ID=31462771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17117587U Expired - Lifetime JPH0526547Y2 (en) | 1987-11-09 | 1987-11-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0526547Y2 (en) |
-
1987
- 1987-11-09 JP JP17117587U patent/JPH0526547Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0526547Y2 (en) | 1993-07-05 |
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