JPH0178970U - - Google Patents
Info
- Publication number
- JPH0178970U JPH0178970U JP1987174406U JP17440687U JPH0178970U JP H0178970 U JPH0178970 U JP H0178970U JP 1987174406 U JP1987174406 U JP 1987174406U JP 17440687 U JP17440687 U JP 17440687U JP H0178970 U JPH0178970 U JP H0178970U
- Authority
- JP
- Japan
- Prior art keywords
- transmitter
- measuring device
- distance measuring
- failure
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Description
第1図は本考案の故障検出装置を組み込んだ超
音波式距離測定器のブロツク図、第2図a〜dは
、距離測定に使用される各種信号の波形とタイミ
ングとを示す線図、第3図はオープン状態検出の
為の回路の1例を示す回路図、第4図a〜bは、
オープン状態検出に使用される各種信号の波形と
タイミングとを示す線図、第5図はシヨート状態
検出の為の回路の1例を示す回路図、第6図a〜
bは、シヨート状態検出に使用される各種信号の
波形とタイミングとを示す線図、第7〜8図は本
考案の超音波式距離測定器の故障検出装置の作用
を示すフローチヤートである。
1:送信器、2:目的物、3:受信器、4:超
音波発振回路、5:主発振回路、6:ゲート回路
、7:判別回路、8:送信回路、9:受信回路、
10:増幅回路、11:判別回路、12:波形整
形回路、13:距離カウンタ、14:距離計測用
発振回路、15:比較回路、16:抵抗、17:
故障判定回路、18,19:端子、20,21,
22,23:トランジスタ、24:ダイオード、
25:抵抗。
Fig. 1 is a block diagram of an ultrasonic distance measuring device incorporating the failure detection device of the present invention, Figs. 2 a to d are diagrams showing the waveforms and timing of various signals used for distance measurement, Figure 3 is a circuit diagram showing an example of a circuit for detecting an open state, and Figures 4 a to b are:
Diagrams showing the waveforms and timings of various signals used for open state detection, FIG. 5 is a circuit diagram showing an example of a circuit for short state detection, and FIG. 6 a-
Fig. 7b is a diagram showing the waveforms and timing of various signals used for shot state detection, and Figs. 1: Transmitter, 2: Target, 3: Receiver, 4: Ultrasonic oscillation circuit, 5: Main oscillation circuit, 6: Gate circuit, 7: Discrimination circuit, 8: Transmission circuit, 9: Receiving circuit,
10: Amplification circuit, 11: Discrimination circuit, 12: Waveform shaping circuit, 13: Distance counter, 14: Distance measurement oscillation circuit, 15: Comparison circuit, 16: Resistor, 17:
Failure determination circuit, 18, 19: terminal, 20, 21,
22, 23: transistor, 24: diode,
25: Resistance.
Claims (1)
を受信器で受信し、送信の瞬間から受信の瞬間迄
の時間に基づいて目標物迄の距離を求める、超音
波式距離測定器の送信器の故障検出を行なう、超
音波式距離測定器の故障検出装置であつて、この
送信器に駆動用信号を送る送信回路中に設け、上
記駆動用信号を通す抵抗の両端の電圧の差の有無
に基づいて送信器の導通状態を検出し、送信器の
故障の有無を判定する故障判定回路を設けた、超
音波式距離測定器の故障検出装置。 A transmitter of an ultrasonic distance measuring device that receives ultrasonic waves transmitted from a transmitter and reflected by a target object with a receiver, and calculates the distance to the target object based on the time from the moment of transmission to the moment of reception. A failure detection device for an ultrasonic distance measuring device, which detects a failure in an ultrasonic distance measuring device, and is installed in a transmitting circuit that sends a driving signal to the transmitter, and detects the presence or absence of a voltage difference between both ends of a resistor through which the driving signal is passed. A failure detection device for an ultrasonic distance measuring device, which is provided with a failure determination circuit that detects the conduction state of the transmitter based on the , and determines whether or not there is a failure in the transmitter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987174406U JPH0178970U (en) | 1987-11-17 | 1987-11-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987174406U JPH0178970U (en) | 1987-11-17 | 1987-11-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0178970U true JPH0178970U (en) | 1989-05-26 |
Family
ID=31466262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987174406U Pending JPH0178970U (en) | 1987-11-17 | 1987-11-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0178970U (en) |
-
1987
- 1987-11-17 JP JP1987174406U patent/JPH0178970U/ja active Pending
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