JPH0443279U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the first embodiment of this invention;
FIG. 2 is a schematic view showing a second embodiment of this invention, and FIG. 3 is a perspective view of the main parts of the ultrasonic transmitter. 1...Measuring side device, 2...Measurement side device, 3...
...Relay device, 4...Start switch, 5...Start pulse modulator, 6...Radio wave transmitter, 7...
Transmitting antenna, 8...Waveform, 9...Radio wave, 10...
...Receiving antenna, 11...Radio wave receiver, 12...
Radio wave transmitter, 13... Transmitting antenna, 14... Receiving antenna, 15... Radio wave receiver, 16... Waveform, 17... Decoder, 18... Waveform, 19...
Ultrasonic transmitter, 20... Vibrator, 21... Diaphragm, 22... Waveform, 23... Ultrasonic wave, 24... Ultrasonic receiver, 25... Ultrasonic receiver, 26... Ultrasonic transmission vessel, 27... vibrator, 28... diaphragm, 2
9... Ultrasonic receiver, 30... Ultrasonic receiver, 3
1... Time counter, 32... Delay adjuster,
33...Display device, 41...Pulse generator, 42...Waveform, 43...Pulse modulator, 44...
... Waveform, 45 ... Radio wave transmitter, 46 ... Transmission antenna, 47 ... Waveform, 48 ... Radio wave, 49 ... Ultrasonic transmitter, 50 ... Vibrator, 51 ... Vibration plate,
52... Waveform, 53... Ultrasonic wave, 54... Receiving antenna, 55... Radio wave receiver, 56... Radio wave transmitter, 57... Transmitting antenna, 58... Ultrasonic receiver, 59... Ultrasonic wave Receiver, 60... Ultrasonic transmitter, 61... Vibrator, 62... Vibration plate, 63...
Receiving antenna, 64...Radio wave receiver, 65...Decoder, 66...Time counter, 67...
Ultrasonic receiver, 68... Ultrasonic receiver, 69...
Display device, 70... Reset switch, 71... Bar, 72A... Flange, 72B... Flange,
73...Holder, 74...Rubber.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A measurement side device placed at a measurement position, a measured side device placed at a position to be measured, and an appropriate number of devices placed at appropriate intervals between the measurement position and the position to be measured. The measurement side device has a built-in radio wave transmitter that transmits a predetermined start pulse as a radio wave, and an ultrasound receiver that receives ultrasound waves, and the measurement side device has a built-in radio wave transmitter that transmits a predetermined start pulse as a radio wave, and an ultrasound receiver that receives ultrasound waves. The relay device has a built-in receiver and an ultrasonic transmitter that emits ultrasonic waves in response to the reception of the radio waves. A radio wave transmitter that emits radio waves facing in the direction of the position, an ultrasound receiver that faces in the direction of the measured position and receives ultrasonic waves, and an ultrasonic transmitter that emits ultrasonic waves facing in the direction of the measurement position in response. The measuring device transmits the radio waves, which are received by the device to be measured via a relay device. In response, ultrasonic waves are emitted, and the radio waves are sent back to the measuring device via the relay device. The distance between the measurement position and the measured position is determined by measuring the time difference between the time when the radio waves are received by the device, the time when the radio waves are transmitted at the measurement position, and the time when the ultrasonic waves are received. A diaphragm formed by pressing a thin metal plate from both ends and curving into an approximately arch shape is connected to the vibrator of the ultrasonic transmitter built in the device to be measured and the relay device. A distance measuring device characterized by: 2 Consisting of a measurement side device placed at the measurement position, a measured side device placed at the measured position, and an appropriate number of relay devices placed at appropriate intervals between the measurement position and the measured position. The side device has a built-in radio receiver that receives radio waves and an ultrasound receiver that receives ultrasound waves.
The device to be measured has a built-in radio wave transmitter that transmits one pulse as a radio wave at each predetermined time interval, and an ultrasonic transmitter that transmits an ultrasound at the same time interval as the pulse at the same time as transmitting the radio wave, The relay device includes a radio wave receiver that faces in the direction of the measured position and receives radio waves, a radio wave transmitter that emits radio waves in response to the radio wave facing in the direction of the measured position, and a radio wave transmitter that faces in the direction of the measured position and receives ultrasonic waves. It has a built-in ultrasonic receiver and an ultrasonic transmitter that emits ultrasonic waves in the direction of the measurement position in response, and the radio waves and ultrasonic waves are emitted from the device to be measured and measured via a relay device. The distance between the measurement position and the measured position is determined by measuring the time difference between one pulse of the radio wave and the ultrasonic wave that reach the side device, and multiplying that value by the speed of sound, and the measured side device A distance measuring device characterized in that a diaphragm formed by pressing a thin metal plate from both ends and curving into a substantially arcuate shape is connected to a vibrator of an ultrasonic transmitter built in the and the relay device. .