JPH05164539A - Electromagnetic type non-destructive inspecting/ measuring apparatus - Google Patents

Abstract

PURPOSE:To achieve a marking at a center point of a drilled hole at a place hard to estimate and measure actually and at a barrier hard to penetrate by oscillating an electromagnetic wave with an oscillator installed on one of a wall and a floor while a position is adjusted observing a receiver. CONSTITUTION:When a center point of a drilled hole for a piping is determined, an electromagnetic wave is oscillated with an oscillator A installed on one side of a wall and a floor while a position is adjusted with a receiver B on the other side observing a direction display indicator 1. When a coincidence display indicator 2 is lit, the center point of the drilled hole is marked using a marking hole 3. At the time measuring the thickness of the wall and the floor, a memory button 4 is depressed likewise with the coincidence display indicator 2 of the receiver B being lit. The thickness of a wall is displayed with a 3-digit digital wall thickness meter 8 and a numeral is stored and held into a controller. This enables the marking of the center point of the drilled hole and the measuring of the thickness of the wall and the floor at a place hard to estimate and to measure actually and at a barrier hard to penetrate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the marking of the center point of a hole for piping or the wall and the thickness of the floor when the repair work such as a wall or floor without see-through and the piping work are performed. The present invention relates to an electromagnetic inspection / measuring device capable of investigating a floor or the like without destroying it.

[0002]

2. Description of the Related Art Conventionally, when measuring the thickness of floors and walls when performing repair work and piping work on walls and floors that are not transparent.
It was based on the design value on the architectural design drawing and the actual measurement with a scale tape measure at the construction site. In addition, when drilling holes for piping in walls, etc., the marking of the center point was similarly determined by the numerical values on the design drawing and the actual measurement from the base points of the floor, ceiling, walls, columns, etc. of the construction site. .. Especially in the case of a thick wall, since it is necessary to work from both sides of the wall, it is necessary to match the piercing center points on both sides, which requires time and labor for measurement. In addition, when it was difficult to measure, it was unavoidable that the surrounding area was destroyed.

[0003]

Therefore, there is no problem in a place where actual measurement can be easily and accurately performed at the construction site, but actual measurement cannot be performed unless the object is broken, or the design value and the actual object size are different. , The thickness of the wall is different from the actual thing due to measurement error during actual measurement, the holes drilled from both sides of the wall when drilling for piping are misaligned in the middle of the wall, However, since it was difficult to actually measure, it was unavoidable to destroy the surroundings, which impaired aesthetics and safety. Further, when referring to the design drawing, various problems related to the management of the design drawing such as confirmation of the storage location of the design drawing and taking it out to the construction site have occurred incidentally. The problem to be solved by the present invention is to measure the thickness of walls and floors and to mark the center point of drilling holes for piping when it is difficult to estimate them from the numerical values on the blueprint or measure them at the construction site. It is an object of the present invention to provide an electromagnetic nondestructive inspection and measurement device that enables anyone to make marking of a center point easily, accurately and safely in a shorter time.

[0004]

The electromagnetic non-destructive inspection and measurement apparatus according to the present invention solves the above problems and is as follows. The electromagnetic non-destructive inspection and measurement apparatus according to the present invention comprises a combination of an oscillator (A) that generates an electromagnetic wave and a receiver (B) that receives the electromagnetic wave across an opaque barrier such as a wall or floor. It has a portable shape. For the oscillator (A), either a household AC power source or a dry battery can be selected as a power source, and the oscillation frequency can be selected so as to change the frequency of the electromagnetic wave according to the object to be inspected and measured.
Electromagnetic waves oscillate between two types, strong and weak, cyclically and intermittently. Further, the oscillator (A) has a built-in spirit level (12) for taking horizontal and vertical directions, and a tripod (13) for fixing the position of the oscillator (A) can be attached. The receiver (B) has a dry battery as a power source, receives electromagnetic waves oscillated by the oscillator (A), analyzes the electromagnetic waves with a controller having a microcomputer, and senses the position of the oscillator (A). The receiver (B) receiving the electromagnetic wave from the oscillator (A) is a portion of the direction indicator (1) which is circularly divided and arranged on the receiver (B) depending on its position, and is strongly affected by the electromagnetic wave. Turn on the indicator. When the center line of the oscillator (A) and the center line of the receiver (B) match each other, all of the circular direction display indicators (1) and the ring-shaped matching display indicator ( 2) is lit up together, and the operator is informed that he is ready to mark the drilling position. The operator can then mark the matching points using the marking holes (3). Also, when the oscillator (A) and the receiver (B) are aligned with each other and the coincident display is made, the memory button (4) on the receiver (B) is pressed to reduce the thickness of the wall, floor, etc. at that time. Three
It is displayed on the digit wall thickness gauge (8) and is stored and stored in the controller. Also, the average value button (5)
By pressing, the average value of the wall thickness values previously stored in the controller is displayed on the 3-digit digital wall thickness gauge (8). The three-digit digital wall thickness meter (8) is displayed by the wall thickness value lamp (6) and the average value lamp (7).

[0005]

When the center point of drilling for piping is determined, the oscillator (A) is installed on one side of the wall or floor to oscillate electromagnetic waves. The operator holds the receiver on the other side of the wall or floor, adjusts the position while looking at the direction indicator (1), and when the match indicator (2) lights up, marks the center point of the hole using the marking hole (3). To do. Similarly, when measuring the thickness of the wall or floor, press the memory button (4) when the matching display indicator (2) of the receiver (B) lights up, and the three-digit digital wall thickness gauge (8) is displayed on the wall. Is displayed and the value is stored in the controller. By performing these operations, it is possible to mark the center point of perforations and measure the thickness of walls and floors in places where it is difficult to estimate and measure, or in barriers that are impenetrable.

[0006]

【Example】

Example 1 FIG. 1 is a perspective view of an oscillator (A) showing Example 1. In the first embodiment, a circular convex portion that oscillates an electromagnetic wave is provided on the front surface of the oscillator (A), the spirit level (12) is embedded in the handle (11) on the upper surface, and the fixing tripod (13) is The shape is attached to the bottom surface.

Second Embodiment FIG. 2 is a perspective view of an oscillator (A) showing a second embodiment. In the second embodiment, an electromagnetic wave is oscillated from the front surface of the oscillator (A), but the surface has a flat structure. A spirit level (12) is embedded in the handle (11) on the upper surface, and a tripod (13) for fixing is provided. Has a shape to be attached to the lower surface.

Third Embodiment FIG. 3 is a front view and a right side view of a receiver (B) showing a third embodiment. In the case of the third embodiment, the marking hole (3) in the center, the matching display indicator (2) around the marking hole (3), the direction display indicator (1) around the marking hole, and the three-digit digital wall at the lower left of the direction display indicator (1). A thickness gauge (8), a power switch (9) on the left side, an average value button (5) underneath, and a memory button (4) on the right side are arranged, and the lower side of these operation parts is a nigiri (10). Has become.

Fourth Embodiment FIG. 4 is a front view and a right side view of a receiver (B) showing a fourth embodiment. In the case of the fourth embodiment, the marking hole (3) in the center, the matching display indicator (2) around the marking hole (3), the direction display indicator (1) around the circumference, and the three-digit digital wall on the direction display indicator (1). The power switch (9), the memory button (4), and the average value button (5) are arranged below the thickness gauge (8) and the direction indicator (1), and the lower side of these operation parts becomes the nigiri (10). ing.

[0010]

When the electromagnetic non-destructive inspection and measurement device according to the present invention is used, the wall thickness can be measured at the site of repair work such as a barrier that cannot be seen through or the piping work, and To identify the center point of drilling, look at the blueprint, measure with a tape measure from the base point of the wall, pillar, floor, ceiling, etc. at the site. Anyone can quickly, easily and accurately determine the wall thickness and drilling center point for piping without sacrificing.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment.

FIG. 2 is a perspective view showing a second embodiment.

FIG. 3 is a front view and a right side view showing a third embodiment.

FIG. 4 is a front view and a right side view showing a fourth embodiment.

[Explanation of symbols]

 A Oscillator B Receiver 1 Direction display indicator 2 Match display indicator 3 Marking hole 4 Memory button 5 Average value button 6 Wall thickness value lamp 7 Average value lamp 8 Digital wall thickness meter 9 Power switch 10 Nigiri 11 Handle 12 Level gauge 13 Tripod

Claims (1)

[Claims] 1. An electromagnetic nondestructive inspection comprising an oscillator (A) for generating an electromagnetic wave and a receiver (B) having a controller for receiving and analyzing the electromagnetic wave to display a distance (thickness) and a center point. measuring device