五、新型說明： 【新型所屬之技術領域】 本創作主要係揭不一種水平尺，女' ^ , 待磁吸金屬賴w尺。^種能夠長期保 【先前技術】 ，在土木、建築工程中’為了確保其施工的平整度 常會使用可量測水平或垂直等各種角度之水平尺作2 知工之輔助用具。水平尺種類繁多，其中氣泡式水平 於操作簡單、使用範圍廣，尤其為工程人員所愛用。 請參照圖七及圖八，為一習知氣泡式水平尺9，其勺 括有-個本體91及四個水平管92，水平管92兔本^ ^見四種不同之減，其心量_四種角度之平錄 度，水平尺9组裝時，水平管92置入本㈣後， 融膠93充填紐水平管92之叫使水平管92封裝於 八水平尺9 —側設有數個磁鐵94，磁鐵94能夠 ▽邊水平尺9磁吸於金屬待測物8上。 平尺述水平尺9仍存在有許錄失，首先，該水 ==融㈣封裝水平管92’由於融膠93充填後必 •二之固化’生產過程耗時費力，且融膠93固化後 肢積通常會發生改變，因而逵成而U化後 響美觀，又由於融膠93 m、+表不平整而影 化’當體積—改變，融膠心體積變 而水平管92則無法固定於本體91，容易誠;平=2動自 本體91脫落；再者，由於磁鐵94與本體91外部位於同一 平面’水平尺9使用時，磁鐵94直接接觸於金屬待測物8， 磁鐵94與金屬待測物8摩擦產生之熱或是金屬待測物8 上雜散的磁場皆容易造成磁鐵94之磁性流失，且磁鐵94 直接接觸金屬待測物8亦容易使磁鐵Μ產生磨損；此外， 磁鐵94裝設於本體91相對應的孔槽％中，磁鐵94直接 接觸於本體91，若本體91為金屬鑄件，磁鐵94亦容易有 磁性流失之疑慮，又磁鐵94組裝至本體91的過程中，磁 鐵94容易與本體91之孔槽95產生嚴重摩擦，極易造成磁 鐵94磨損甚而無法順利卡設於孔槽π。 有鑑於上述先前技術的問題無法有效的解決與克服， 因此本申請人提出本專利申請，以解決前述問題點。 【新型内容】 失 本創作之水平尺所欲解決的是切技術所存在之缺 本創作提供-種水平尺，其包括有一個本體，盆且有 -個弟-端面與-個相反於第—端面之第二端面，驾一 ^面凹設有至少-财置部，該容置部内設 ^該磁性元件具有-個靠近該第1面之第三端面= 第二端面與該第-端面之間具“ 件套設有-個外套外套位料磁元 間，耕套之硬度低於磁性元件之硬度；至少_ 之 該水平管設於該第1面與該第二端面之間。+吕， M436831 作之水平尺销藉由本體之磁性元件於 待測物，由於磁性元件之第二 、’’ 直距離，㈣性元件不突心^與第1㈣有一個垂 磁性元件不直接接觸於待 十尺使糾 ^^^ ^ ^ ^ ^ j物之表面，能夠避免磁性元件. 之磁n或妓雜元件磨損；再者，本 與容置部之間設有一個外套， 性兀件 杜夕μ “ 於外套之硬度低於磁性元 Γ 磁性元件與容置部之相對滑移與摩V. New description: [New technology field] The main purpose of this creation is to expose a level ruler, female '^, to be magnetic metal. ^Property can be protected for a long time. [Prior Art] In civil engineering and construction engineering, in order to ensure the smoothness of construction, it is often used as a secondary tool for measuring various horizontal angles such as horizontal or vertical. There are many kinds of level gauges, among which the bubble type is simple in operation and wide in use, especially for engineers. Please refer to FIG. 7 and FIG. 8 for a conventional bubble level ruler 9, which includes a body 91 and four horizontal tubes 92, and the horizontal tube 92 has four different reductions. _ Four angles of flatness, when the level 9 is assembled, after the horizontal pipe 92 is placed in this (4), the melted rubber 93 fills the horizontal horizontal pipe 92 so that the horizontal pipe 92 is packaged on the eight level ruler 9 - side is provided with several The magnet 94 and the magnet 94 can be magnetically attracted to the metal object 8 by the leveling ruler 9. There is still a record of the level 9 in the flat ruler. First, the water == melt (4) package horizontal tube 92' due to the filling of the glue 93 after the two solidification process is time-consuming and laborious, and the melted rubber 93 solidified hind limbs The product usually changes, so it is beautiful and beautiful after being smashed, and because the melt is 93 m, the + table is uneven, and the shadow is changed. When the volume is changed, the volume of the melted rubber is changed and the horizontal pipe 92 cannot be fixed to the body. 91, easy to be honest; flat = 2 moving from the body 91 off; in addition, since the magnet 94 and the body 91 are located in the same plane 'level 9', the magnet 94 is in direct contact with the metal object to be tested 8, the magnet 94 and the metal to be The heat generated by the friction of the object 8 or the stray magnetic field on the metal object 8 is likely to cause magnetic loss of the magnet 94, and the direct contact of the magnet 94 with the metal object 8 is also likely to cause wear of the magnet bar; in addition, the magnet 94 The magnet 94 is directly in contact with the body 91 in the corresponding slot % of the body 91. If the body 91 is a metal casting, the magnet 94 is also prone to magnetic loss, and the magnet 94 is assembled into the body 91. 94 easy to produce with the hole 91 of the body 91 Serious friction, can easily cause the magnet 94 can not even wear smooth card slot provided in the hole π. In view of the above problems of the prior art, which cannot be effectively solved and overcome, the present applicant has filed this patent application to solve the aforementioned problems. [New content] The level of the loss of the creative level is to solve the problem of the existence of the cutting technology provided by the creation of a level, which includes a body, a basin and a - brother - end and - opposite to the first - The second end surface of the end surface is provided with at least a financial portion, and the magnetic portion has a third end surface adjacent to the first surface = a second end surface and the first end surface Between the pieces is provided with a jacket and the position of the magnetic element, the hardness of the ploughing sleeve is lower than the hardness of the magnetic component; at least _ the horizontal tube is disposed between the first surface and the second end surface. , M436831 made of the horizontal ruler by the magnetic element of the body in the object to be tested, due to the second, ''straight distance of the magnetic element, (four) the element is not sharp ^ and the first (four) has a perpendicular magnetic element is not directly in contact with Ten feet make the surface of the ^^^ ^ ^ ^ ^ j object, which can avoid the magnetic component. The magnetic n or the doped component wears; further, there is a jacket between the present and the housing, μ “The hardness of the outer casing is lower than that of the magnetic element 相对 the relative slip and friction of the magnetic element and the receiving part
擦’亚且外套能夠減少本體對磁性元件之磁 磁性流失，以達财實賴贿元狀功效。^=Rubbing the 'Asian jacket can reduce the magnetic loss of the magnetic components of the body, so as to achieve the benefits of the financial system. ^=
=孔端㈣内呈現觸之孔狀，藉由凹孔能夠使磁 性讀更·地組裝至容置部，錢免了雜元件與本體 間過度摩擦而產生損耗；而當融膠受熱或遇冷而體積變 化，使融膠與第-連接孔產生鬆動時，由於端塞螺合於第 :連接孔水平管受到端塞_而限位於洞孔内，使水平 官不會自第-連接孔脫落；又端塞遠離水平管—端之端面 平整且树不規則之狄，使水平尺整體更加美觀耐用。 其他目的、優點和本創作的新穎特性將從以下詳細的 描述與相關的附圖更加顯明。 【實施方式】 有關本創作所採用之技術、手段及其功效，茲舉一較 佳實施例並配合圖式詳述如後，此僅供說明之用，在專利 申請上並不受此種結構之限制。 參照圖-至圖三，本創作水平尺i包括有一個本體10 5 與至少-個設财體1G之水平f 2G，本創作之水平尺i 能夠直制吸在金屬待_ δ上進行崎，且該磁吸功政 能夠長久保持。 本體10具有一個第—端面1〇1與一個相反於第一端面 101之第二端面丨〇2,第一端面1〇1凹設有至少一個凹孔 11及至少一個容置部12 ’凹孔η位於第-端© ιοί與容 置部12之間’同時參照圖四，凹孔11自第一端面101向 内呈現漸縮之孔狀，凹孔11於第-端面101具有-個第-l^Rl ϋ孔11與谷置部12之交界處具有一個第二直徑 R2第直徑大於第二直徑R2，容置部12具有一個第 三直徑R3’第三直徑们等於第二直徑R2，於本實施例中， 凹孔11與容置部12各設為四個，且該四個凹孔丨丨沿著第 一纟而面101之長軸平均分布。 合置部12内設有一個磁性元件13，本體1〇藉由磁性 凡件13能夠磁吸於鐵、鈷、鎳等金屬或金屬合金表面，磁 性το件13具有一個靠近第一端面1〇1之第三端面131，第 二立而面131與第一端面1〇1具有一個垂直距離趴，垂直距 離D1不等於〇，同時參照圖五，由於第三端面131與第一 端面101具有垂直距離D1，磁性元件13不突出於第一端 面101 ’水平尺1诞用時，磁性元件·13不直接-接觸於金屬 待測物8之表面，能夠避免磁性元件13之磁性流失或造成 磁性元件13磨損。磁性元件13套設有一個外套14，外套 14之硬度低於磁性元件13之硬度，外套14位於磁性元件 13與谷置部12之間，外套14能夠避免磁性元件a與容 置部12之相對滑移與摩擦，並且能夠減少本體1Q對磁性 元件13之磁性干擾。此外’藉由向内漸縮之凹孔11能夠 使磁性元件13更順暢地組裝至容置部12 ’且避免了磁性 兀件13與本體1〇過度摩擦而損耗。 同時參照圖六，本體10於第一端面1〇1與第二端面 之間昊有一個側壁15 ’側壁15設有至少一個洞孔16， /同孔16開通侧壁π之兩側，洞孔16之内壁開設有一個第 —連接孔161與一個第二連接孔162，第一連接孔161開 通洞孔16之内壁與本體1〇之外部，且第一連接孔161不 位於第一端面101，第一連接孔161與第二連捿孔162兩 兩2對，第一連接孔161與第二連接孔162之連線能夠與 本版10之長軸呈現〇度、30度、45度及90度等角度；第 連接孔161之孔壁環設有一個内螺紋164。 土 Ab之兩側分別凸設有一個肩部151，其中之一 j =於第-端面ιοί ’另―肩部151難近於第二端面1〇2 昏水平尺1以寬面置放於制物時，僅藉由肩部1 物之表面，本體1G與待測物的接觸面積 免本體10大面積之磨損。. =平=為透明管件，水平管2Q設於洞孔16内，力 5之一端设於第一連接孔161，水平管2〇 則設於第二連接孔162。 " 一個能夠在液㈣中有—液體21與 々右而袖a 私動之虱泡22，水平管20外表面佥 勢之心 23，兩基準線23龍地位於轉管20 t 2於液脰21中之位置能夠作為待測物是 M436831 否呈現水平、垂直或傾斜狀態之測量基準。於本實施例中， 本體10之洞孔16實施為四個，其沿著本體1〇之長軸排 歹J水平^ 20亦相對應地貫施為四個，水平管分別與 本體10之長轴呈現〇度、45度、90度及3〇度。本體1〇 沿著本體10之長軸設有一個V型溝17，V型溝17位於第 二端面102。 ^本體10洞孔16之内壁開設有至少一個窺視孔163， 窺視孔163開通洞孔16之内壁與本體1〇之外部，窺視孔 163不與第一連接孔161或第二連接孔162相交，使用者 能夠藉由窺視孔163觀察水平管2〇中氣泡22之位置。 本體ίο更包括有一個端塞18，端塞1δ卡設於洞孔16 之第一連接孔161内，端塞18能夠將水平管2〇固定於洞 孔16内，端塞18之外表面環設有一個外螺紋181，該外 螺紋181相對於該第一連接孔161之内螺紋164，端塞18 之一端凹設有一個卡抵槽182，卡抵槽182能夠提供螺絲 起子抵靠，於本實施例中，卡抵槽182為一字形槽。 將水平管20組裝於本體10時’水平管2〇由第一連接 孔161穿入，使水平管2〇兩端分別置於第一連接孔 與第二連接孔162内，接著由第一連接孔161充填一層融 膠19將水平管2〇封裝於洞孔16内（如圖三所示），▲後 利用螺絲起子抵靠於端塞18之卡抵槽182並將端塞18螺 入該第一連接孔161，封裝完成後融膠19位於水平管2〇 與端塞18之間。當融膠19受熱或遇冷而體積變化，使融 膠19與第一連接孔161產生鬆動時，由於端塞18螺合於 8 弟—連接孔161，水平管20受到端塞18阻擋而限位於洞 士 16内，使水平管2〇不會自第一連接孔161脫落，又端 基18遠離水平管2〇 一端之端面平整且未有不規則之突 起’使水平尺1之整體更加美觀耐用。 就以上所述可以歸納出本創作具有以下之優點： 本創作之水平尺能夠藉由本體之磁性元件磁吸於 金屬待測物，由於磁性元件之第三端面與第一端面具有一 個垂直距離’故磁性元件不突出於第一端面，當水平尺使 用日才磁性元件不直接接觸於金屬待測物之表面，能夠避 免磁|·生元件之磁性流失或造成磁性元件磨損。 2.本創作之水平尺，本體之磁性元件與容置部之間設 有一個外套，由於外套之硬度低於磁性元件之硬度，能夠 避免磁性元件與容置部之相對滑移與摩擦，並且外套能夠 減少本體對韻元件之雖干擾而造成磁性流失。 3·本創=之水平尺，由於凹孔自第—端面向内呈現漸 :之孔狀，藉由凹孔能夠使磁性元件更順暢地組裝至容置 部，且避免了磁性元件與本體間過度摩擦而產生損耗。 卜:本作之水平尺，當融膠受熱或遇冷而體積變化， 轉與第一連接孔產生鬆動時，由於端塞螺合於第一連 2 ’水平管受到端塞阻擔而限位於洞孔内，使水平管不 日\第一連接孔脫落；又端塞遠離水平管-端之端面平整 且未有不朗之突起，使水平尺整體更加美觀耐用。 以之僅為ί創作之較佳實施例而已，當不能 q 1作貫施之範gj ’故舉凡數值之變更或等效元 M436831 【圖式簡單說明】 圖一：為本創作水平尺之立體外觀圖。 圖二：為本創作水平尺之立體分解圖。 圖三：為本創作水平尺圖一中3_3割面線所取之剖視圖。 圖四：為本創作水平尺圖三中圓框部份之局部放大圖。 圖五·為本創作水平尺磁吸待測物之使用示意圖。 圖/、·為本創作水平尺另一角度之立體分解圖。 圖七：為習知水平尺之側視圖。 圖八：為習知水平尺之剖視圖。 【主要元件符號說明】 1 水平尺 10 本體 101 第一端面 102 弟二端面 11 凹孔 12 容置部 13 磁性元件 131 第三端面 14 外套 15 側璧… 151 肩部_ 16 洞孔 161 第一連接孔 162 弟一連接孔 163 規視孔 164 内螺紋 17 V型溝 18 端塞 10 M436831 181 外螺纹 182 卡抵槽 19 融膠 20 水平管 21 液體 22 氣泡 23 基準線 R1 第一直徑 R2 第二直徑 R3 第三直徑 D1 垂直距離 (習知元件） 8 金屬待測物 9 水平尺 91 本體 92 水平管 93 融膠 94 磁鐵 95 孔槽= The hole end (4) is in the shape of a contact hole, and the magnetic hole can be assembled to the accommodating portion by the concave hole, so that the excessive friction between the impurity element and the body is avoided, and the loss is generated; and when the melt is heated or cold When the volume changes, the melt and the first connecting hole are loosened, because the end plug is screwed to the first: the horizontal hole of the connecting hole is blocked by the end plug_, and the horizontal official does not fall off from the first connecting hole. The end plug is further away from the horizontal pipe - the end face of the end is flat and the tree is irregular, so that the level of the whole is more beautiful and durable. Other objects, advantages and novel features of the present invention will become more apparent from the detailed description and the accompanying drawings. [Embodiment] The techniques, means and functions of the present invention are described in detail with reference to the accompanying drawings, which are for illustrative purposes only, and are not subject to such structures in patent applications. The limit. Referring to FIG. 3 to FIG. 3, the creation level i includes a body 10 5 and at least a level 1 2 of the financial body 1 2, and the level i of the creation can directly suck on the metal to be δ δ. And the magnetic power can be maintained for a long time. The body 10 has a first end face 1〇1 and a second end face 相反2 opposite to the first end face 101. The first end face 1〇1 is recessed with at least one recessed hole 11 and at least one receiving portion 12' η is located between the first end ιοί and the accommodating portion 12. Referring to FIG. 4 at the same time, the recessed hole 11 has a tapered shape inward from the first end surface 101, and the recessed hole 11 has a first portion at the first end surface 101. l^Rl The junction of the pupil 11 and the valley portion 12 has a second diameter R2, the first diameter is larger than the second diameter R2, and the receiving portion 12 has a third diameter R3'. The third diameter is equal to the second diameter R2. In this embodiment, the recessed hole 11 and the accommodating portion 12 are each set to four, and the four recessed holes 平均 are evenly distributed along the long axis of the first meandering surface 101. A magnetic element 13 is disposed in the joint portion 12, and the body 1 is magnetically attracted to a surface of a metal or a metal alloy such as iron, cobalt or nickel by a magnetic member 13, and the magnetic member 13 has a first end face 1〇1 The third end surface 131, the second vertical surface 131 has a vertical distance 与 from the first end surface 1〇1, and the vertical distance D1 is not equal to 〇, while referring to FIG. 5, since the third end surface 131 has a vertical distance from the first end surface 101 D1, the magnetic element 13 does not protrude from the first end surface 101. When the horizontal ruler 1 is used, the magnetic element 13 does not directly contact the surface of the metal object to be tested 8, and the magnetic loss of the magnetic element 13 can be avoided or the magnetic element 13 can be caused. abrasion. The magnetic element 13 is sleeved with a jacket 14 having a hardness lower than that of the magnetic member 13. The jacket 14 is located between the magnetic member 13 and the valley portion 12. The outer casing 14 can prevent the magnetic member a from being opposed to the receiving portion 12. Slip and friction, and magnetic interference of the body 1Q with the magnetic element 13 can be reduced. Further, the magnetic member 13 can be more smoothly assembled to the accommodating portion 12' by the recessed hole 11 which is tapered inward, and the magnetic dam member 13 and the body 1 避免 are prevented from being excessively rubbed and lost. Referring to FIG. 6 simultaneously, the body 10 has a side wall 15 between the first end surface 1〇1 and the second end surface. The side wall 15 is provided with at least one hole 16 and the same hole 16 is opened on both sides of the side wall π. A first connecting hole 161 and a second connecting hole 162 are defined in the inner wall of the first opening 161, and the first connecting hole 161 is open to the outside of the hole 16 and the first connecting end 161 is not located at the first end surface 101. The first connecting hole 161 and the second connecting hole 162 are two or two pairs, and the connection between the first connecting hole 161 and the second connecting hole 162 can exhibit twist, 30 degrees, 45 degrees and 90 degrees with the long axis of the plate 10. The angle is equal; the hole wall ring of the first connecting hole 161 is provided with an internal thread 164. A shoulder 151 is respectively protruded on both sides of the soil Ab, one of which is at the first end face ιοί 'the other shoulder portion 151 is hard to be close to the second end face 1 〇 2 faint level 1 is placed on the wide side In the case of the object, only the surface of the shoulder 1 is used, and the contact area of the body 1G with the object to be tested is prevented from being worn by a large area of the body 10. = flat = transparent tube, horizontal tube 2Q is disposed in the hole 16, one end of the force 5 is disposed in the first connecting hole 161, and the horizontal tube 2 is disposed in the second connecting hole 162. " One can be in the liquid (4) - the liquid 21 and the right side of the sleeve and the sleeve of the private movement of the bubble 22, the outer surface of the horizontal tube 20 is the heart 23, the two baselines 23 are located in the tube 20 t 2 in the liquid The position in 脰21 can be used as a measurement basis for whether the M436831 is horizontal, vertical or inclined. In this embodiment, the hole 16 of the body 10 is implemented as four, and the horizontal axis of the body 1 is correspondingly distributed to four levels, and the horizontal tubes are respectively long with the body 10. The axes exhibit twist, 45 degrees, 90 degrees, and 3 degrees. The body 1 is provided with a V-shaped groove 17 along the long axis of the body 10, and the V-shaped groove 17 is located at the second end face 102. The inner wall of the body 10 hole 16 is provided with at least one peephole 163, and the peephole 163 opens the inner wall of the hole 16 and the outside of the body 1b, and the peephole 163 does not intersect the first connection hole 161 or the second connection hole 162. The user can observe the position of the bubble 22 in the horizontal tube 2 by the peephole 163. The body ίο further includes an end plug 18, the end plug 1δ is clamped in the first connecting hole 161 of the hole 16, and the end plug 18 can fix the horizontal tube 2〇 in the hole 16 and the outer surface of the end plug 18 An external thread 181 is disposed. The external thread 181 is opposite to the internal thread 164 of the first connecting hole 161. One end of the end plug 18 is recessed with a latching groove 182. The latching groove 182 can provide a screwdriver for abutting. In this embodiment, the card abutment groove 182 is a slotted groove. When the horizontal pipe 20 is assembled to the body 10, the horizontal pipe 2 is penetrated by the first connecting hole 161, so that the two ends of the horizontal pipe 2 are respectively placed in the first connecting hole and the second connecting hole 162, and then the first connection is made. The hole 161 is filled with a layer of melt rubber 19 to encapsulate the horizontal tube 2〇 in the hole 16 (as shown in FIG. 3), and then the screw is used to abut the groove 182 of the end plug 18 and screw the end plug 18 into the hole. The first connection hole 161 is located between the horizontal tube 2〇 and the end plug 18 after the package is completed. When the melt 19 is heated or cold and the volume changes to loosen the melt 19 and the first connecting hole 161, since the end plug 18 is screwed to the 8th-connection hole 161, the horizontal pipe 20 is blocked by the end plug 18. Located in the Dongshi 16, the horizontal pipe 2〇 will not fall off from the first connecting hole 161, and the end surface of the end base 18 away from the end of the horizontal pipe 2 is flat and has no irregular protrusions to make the whole level 1 more overall. Beautiful and durable. As far as the above is concerned, it can be concluded that the creation has the following advantages: The level of the creation can be magnetically attracted to the metal object by the magnetic component of the body, since the third end surface of the magnetic element has a vertical distance from the first end surface. Therefore, the magnetic element does not protrude from the first end surface, and when the level is used, the magnetic element does not directly contact the surface of the metal object to be tested, and magnetic loss of the magnetic element or wear of the magnetic element can be avoided. 2. The level of the creation, a jacket is arranged between the magnetic component of the body and the accommodating portion, and since the hardness of the jacket is lower than the hardness of the magnetic component, the relative slip and friction of the magnetic component and the accommodating portion can be avoided, and The jacket can reduce the magnetic loss caused by the interference of the body to the rhyme component. 3. The level of the creator = the hole is formed in the shape of the hole from the first end, and the hole can make the magnetic component more smoothly assembled to the accommodating portion, and the magnetic element and the body are avoided. Excessive friction causes loss. Bu: The level of this method, when the melt is heated or cold and the volume changes, when the first connection hole is loosened, the end plug is screwed to the first 2' horizontal tube and is blocked by the end plug. In the hole, the horizontal pipe is not removed from the first connecting hole; the end plug is far from the horizontal pipe end and the end surface is flat and there is no uneven protrusion, so that the whole level is more beautiful and durable. It is only the preferred embodiment of ί creation. When it is not possible to apply the variable gj ', the change of the value or the equivalent element M436831 [Simple description of the figure] Figure 1: The three-dimensional figure of the creation level Appearance map. Figure 2: An exploded view of the level of the creation. Figure 3: A cross-sectional view of the 3_3 cut line in the first level of the creation level. Figure 4: Partial enlarged view of the round frame part of the level 3 of the creation level. Figure 5 is a schematic diagram of the use of the horizontal magnetic attraction test object. Figure /, · is a three-dimensional exploded view of the other level of the creation level. Figure 7: A side view of a conventional level. Figure 8: A cross-sectional view of a conventional level. [Description of main components] 1 Level 10 Body 101 First end 102 Second end face 11 Recessed hole 12 accommodating part 13 Magnetic element 131 Third end face 14 Jacket 15 Side 璧... 151 Shoulder _ 16 Hole 161 First connection Hole 162 Brother one connection hole 163 Layout hole 164 Internal thread 17 V-shaped groove 18 End plug 10 M436831 181 External thread 182 Card abutment groove 19 Melt 20 Horizontal tube 21 Liquid 22 Bubble 23 Reference line R1 First diameter R2 Second diameter R3 third diameter D1 vertical distance (known components) 8 metal object to be tested 9 level ruler 91 body 92 horizontal tube 93 melt 94 magnet 95 hole slot
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