Distance measuring device, distance measuring equipment and distance measuring method

A detection device, measuring device technology, applied in the direction of measuring device, measuring distance, using optical device, etc.

Inactive Publication Date: 2005-02-09
入谷 忠光 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the conventional radar ca

Method used

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  • Distance measuring device, distance measuring equipment and distance measuring method
  • Distance measuring device, distance measuring equipment and distance measuring method
  • Distance measuring device, distance measuring equipment and distance measuring method

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Embodiment Construction

[0038] Embodiments of the present invention will be described below with reference to the drawings.

[0039] FIG. 1 is a schematic block diagram of a distance measuring device 10A according to the first embodiment.

[0040] As shown in the figure, the distance measuring device 10A of the first embodiment is basically composed of a transmission source 11, a transmission device 12, a detection device 13, and a signal processor 14. The standing wave S formed between them is used to measure the distance to the measurement object M.

[0041] First, before describing the distance measuring device 10A of the first embodiment, the standing wave S will be described.

[0042] Figure 8 It is a schematic explanatory diagram explaining the formation of the standing wave S. As shown in the figure, when an electromagnetic wave of frequency f is emitted from the electromagnetic wave generator B1 into a propagation medium such as air, the electromagnetic wave becomes a traveling wave D and...

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Abstract

A distance measuring device (10) for measuring a distance to an object M of measurement, comprising a source (11) for outputting variable-frequency signals, a transmission means (12) for emitting an electromagnetic wave having the same frequency as that of an output signal from the source (11), a detection means (13) provided between the transmission means (12) and the object M, for detecting the amplitude of a standing wave S formed between the transmission means (12) and the object M and outputting a detection signal, and a signal processor (14) for producing a detection signal function indicative of a detection signal value relative to the output signal frequency to calculate, from its frequency, the distance between the detection means (13) and the object M of measurement.

Description

technical field [0001] The present invention relates to distance measuring devices. [0002] Waves (traveling waves) such as electric waves and light emitted from antennas and light emitters are reflected by the measurement object when they appear in the direction of travel, and become reflected waves that travel in the opposite direction to the traveling wave. Therefore, if a radio wave or the like is continuously output from an antenna or the like, the traveling wave and the reflected wave interfere and form a standing wave between the antenna and the measurement object. The present invention relates to a distance-measuring device, a distance-measuring device, and a distance-measuring method for measuring the distance to a measurement object by using the above-mentioned standing wave. Background technique [0003] Electromagnetic wave radars using microwaves and millimeter waves are generally known as distance measuring devices using radio waves. Electromagnetic wave rad...

Claims

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Application Information

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IPC IPC(8): G01S13/36G01S17/32G01S13/32G01S17/36
CPCG01S13/32G01S17/32G01B15/00
Inventor 入谷忠光
Owner 入谷 忠光
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