Method for fixing electric-resistance strain gage

[Detailed Description of the Invention]

A, Field of the Invention The present invention relates to the fixing method of the electrical resistance distortion gauge which measures distortion of a structure etc. The outline of B1 invention Fixation of the electrical resistance distortion gauge on the surface of a structure where the present invention performs distortion measurement, A transparent adhesive tape is stuck on the structure surface, and injury Line which shows the position and direction which fix an electrical resistance distortion gauge to an adhesive tape is given, It is in the state which stuck some adhesive tapes on the structure surface, and exfoliates other portions from the structure surface, The field of an anti-fixed side of an electrical resistance distortion gauge is united with the adhesive face of an adhesive tape, an axis is set by injury Line, and it sticks, adhesives are dropped at the electrical resistance distortion gauge fixing part on the surface of a structure -- an adhesive tape -- again An electrical resistance distortion gauge can be fixed easily and correctly, without attaching the crack by the marks of injury Line, etc. to a structure, since it was made to pressurize until it stuck on the above-mentioned structure surface and adhesives hardened. Art of C8 former As a means to measure distortion of a structure or parts, an electrical resistance distortion gauge (a gauge is called below) is used well. Fixation of the gauge is performed as shown in Drawing 2. 1 is a structure which measures by being distorted, and the part which performs distortion measurement of surface 1a is ground with the sandpaper of #320, etc. as a pretreatment, and performs a surface treatment. First, it is Apply about injury Line 3 which crosses in all directions in order to show the position and direction which fix gauge 4 to the position which performs distortion measurement in surface 1a of structure 1. Next, the distortion measured region in surface 1a of structure 1 is degreased using gambling, such as acetone or a carbon tetrachloride. And adhesives 5 are dropped at the intersection of injury Line 3, an axis is set by injury Line 3 and gauge 4 is stuck quickly, and it pressurizes until adhesives 5 harden. When pressurizing, in order that a pressurization thing (for example, finger) may prevent pasting up with gauge 4, nonadherent sheet 6 is placed on gauge 4, and it is pressurizing via this nonadherent sheet 6. If it pressurizes in this way, excessive adhesives 5 between surface 1a of structure 1 and gauge 4 will overflow, and adhesiveness will improve. After adhesives 5 harden, pressurization is stopped and nonadherent sheet 6 is removed. Pressurization hardening may be performed depending on the case. It sets to the measuring instrument which does not illustrate lead 4a of gauge 4 fixed to the surface of structure 1 as mentioned above, and measures distortion of a structure. D1 Object of the Invention As mentioned above, since he was trying to show the position and direction which give injury Line to a structure and fix a gauge when a cage was conventionally fixed to a structure, there were the following problems. ■ The crack by the marks of injury Line will remain in the structure which performs distortion measurement. ■ In the portion of the crack by injury Line, a structure and a gauge cannot stick and it cannot perform exact distortion measurement. ■ From the crack by injury Line, the structure which performs distortion measurement may change geometrically and the characteristic may change. ■ When a gauge is fixed to a structure, it is difficult to put a gauge on the position shown by injury Line correctly, and by hardening of adhesives, it is difficult to also make it move and it cannot fix a gauge to an exact measurement position. The present invention solves the above-mentioned problem, and it provides the fixing method of the electrical resistance distortion gauge which can fix a gauge correctly and can perform exact distortion measurement, without leaving the marks of injury Line to the structure which performs distortion measurement. The means for solving 50 subjects In order to solve the above-mentioned problem, the present invention sticks a transparent adhesive tape on the structure surface, Injury Line which shows the position and direction which fix an electrical resistance distortion gauge on an adhesive tape is given, It is in the state which stuck the part on the structure for the adhesive tape, and exfoliates other portions from the structure surface, The field of an anti-fixed side of an electrical resistance distortion gauge is united with the adhesive face of an adhesive tape, an axis is set by injury Line, and it sticks, Adhesives are dropped at the electrical resistance distortion gauge fixing part on the surface of a structure, it pressurizes until it sticks an adhesive tape on the structure surface again and adhesives harden, and an electrical resistance distortion gauge is fixed to the structure surface. F1 operation According to the present invention, since injury Line which shows the fixed position and direction of an electrical resistance distortion gauge which are fixed to the structure surface is given on an adhesive tape, the marks whose brush is Chestnut do not remain in a structure. Since a gauge is fixed to the adhesive tape which can be detached and attached freely first in the case of gauge fixing, position correction is easy and the position of a gauge is made to an exact thing as a result. G, an example Hereinafter, the example of the present invention is described based on Drawing 1 (a) thru/or (f). It is a structure which measures by distorting 1 in Drawing 1 (a), and surface treatments, such as polish, degreasing, etc. according [ surface 1a ] to sandpaper, are almsgiving. 2 is adhesive tapes which consist of the quality of the material which cannot be extended easily thinly [ it is transparent and ], such as celluloid and vinyl. First, as shown in Drawing 1 (b), adhesive tape 2 is stuck on surface 1a of structure 1, and injury Line 3 which shows the position and direction which fix a gauge on adhesive tape 2 as shown in Drawing 1 (C) is given. As a means to give injury Line to adhesive tape 2, pens and pencils, such as a pen, are used, and also a paint, a crayon, chalk, lime, resin, etc. are beforehand applied on adhesive tape 2, by rubbing with a Hyde gauge, a marking-off pin, etc., a paint etc. can be shaved and a line can be attached. Next, as shown in Drawing 1 (d), adhesive tape 2 is changed into the state where attachment fixation of the part was carried out, and other portions (portion which gave injury Line 3) are exfoliated from the surface of structure 1. At this time, as for adhesive tape 2, it is preferred to keep the neighborhood of one side stuck so that the position of adhesive tape 2 to structure 1 may not shift. Since adhesive tape 2 is transparent, injury Line 3 can recognize it also from the adhesive face side which exfoliated. And as shown in Drawing 1 (e), an axis is set by injury Line 3 and a field opposite to the field which sticks gauge 4 on structure 1 is stuck on the adhesive face side of adhesive tape 2. From adhesive tape 2, even if gauge 4 cliff shifts from Line 3 and sticks at this time, since it can exfoliate, position Matching of the gauge 4 may be carried out, and it may be stuck again. And after adhesives 5 are dropped at the fixed part of gauge 4 in surface 1a of structure 1, as shown in Drawing 1 (f), stick on surface 1a of structure 1 adhesive tape 2 again, excessive adhesives are removed, and adhesives 5 pressurize to hardening To rinse and end work. since adhesive tape 2 exfoliates, and it comes out and there is where pasting fixation of the part is carried out, also when sticking on structure 1 again, it can stick on the position same before exfoliating. That is, gauge 4 can be given and cooked via adhesive tape 2 in surface 1a of structure 1, and it writes, and an axis can be set and it can fix to line 3. adhesive tape 2 -- gauge 4 fixed A -- as long as it is unnecessary, it may exfoliate. H1 effect Injury Line which shows a fixed position and a direction by the present invention as mentioned above when an electrical resistance distortion gauge is fixed to the structure surface, Give on an adhesive tape and a crack is kept from being attached to the structure surface, and positioning at the time of fixing to the structure surface is performed by attachment on an adhesive tape so that it can adjust. therefore -- without changing the characteristic of a structure, an electrical resistance distortion gauge is satisfactorily stuck to a structure, and it can fix to an exact position -- a result -- a thing of a structure which can perform distortion measurement correctly -- it is .

[Brief Description of the Drawings]

Drawing 1 is a figure showing the fixing method of the electrical resistance distortion gauge of the present invention, Drawing 2 is a figure showing the fixing method of the conventional electrical resistance distortion gauge. As for a structure and 1a, an adhesive tape and 3 brushes of Line and 4 are electrical resistance distortion gauges the surface and 2 one among a figure. Patent applicant MEIDENSHA CORP. Generation Table Person Wild boar Bear Tokihisa (a) The (b) Figure (C) (d)