TWI280373B - Apparatus for preventing ground wire radiation noise from electrical signal measurement probe - Google Patents

Apparatus for preventing ground wire radiation noise from electrical signal measurement probe Download PDF

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Publication number
TWI280373B
TWI280373B TW94110027A TW94110027A TWI280373B TW I280373 B TWI280373 B TW I280373B TW 94110027 A TW94110027 A TW 94110027A TW 94110027 A TW94110027 A TW 94110027A TW I280373 B TWI280373 B TW I280373B
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Taiwan
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probe
electrical signal
section
noise
radiation noise
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TW94110027A
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Chinese (zh)
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TW200634314A (en
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Jung-Gang Yu
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Mitac Int Corp
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Abstract

An apparatus for preventing ground wire radiation noise from electrical signal measurement probe is disclosed. A noise prevention coil is provided to circumferentially surround the specific region and the extended region of the electrical signal measurement probe, and the end of the noise prevention coil is connected to the ground end of the holding region of the electrical signal measurement probe. The other end of the noise prevention coil is positioned in the direction along the long axis of the electrical signal measurement probe and via the extended region for being extended to neighboring location of the contact probe in the front specific region of the probe. The radiation noise can be leaded and shielded by the noise prevention coil, thereby effectively preventing radiation noise from being flown to a ground wire of the electrical signal measurement probe.

Description

1280373 九、發明說明: 【發明所屬之技術領域】 本發明係關於一種電信號量測探棒之雜訊防制技 術,特別是關於一種在該電信號量測探棒之周環繞設有一 雜訊防制繞線之設計,可有效防制幅射雜訊被收集於該電 信號量測探棒之接地線。 【先前技術】 查訊號量測探針固定器是工程師在量測電子訊號時 經常使用的辅助工具,舉凡在產品之電路設計、研發階段、 以及,品製作、驗證、檢測、維料各個階段皆會用到該 訊唬$測探針來進行待測電路板之訊號量測。 由於訊號量測探針在整個電子產品之研發、、 品管過程中佔有相當重要的地位,故在先前技射^者 對^該探針之結敎良亦不遺餘力,亦有 探針 之先前專利結構。 ^ 衣針 第-圖顯不了其中—種傳統電信號量測探棒在 待測電路板之電信號量測時之立體示㈣。^ 丁 之電信號量測探棒i具有—探針时區段n, 合有一接觸探針12,可供勾持或夾持於-待測電::結 之运疋文測點21°該探針岐區段11之後端經由_4袖2 區段13再連結一握持區段14。 延伸 X握持區丰又14具有一接地⑷ 相當長度之接地線15㈣至待測電路板2處=:= 1280373 以夾持或其它方式連接於 地線15 &端之接地點失持件1 $ 邊待測電路板2之接地點22。 ―、㈣握持區& 14之末端經由—信號傳輸線17連接於 故該電信號量測探棒i所量測出之電信號 Γ ㈣傳輸線17傳送至朗躲備3,以作為分 祈、顯不、或記錄之用。 而^其它的傳統電信號量測探棒設計中,亦可見於 。二先月;1么開之專利月;!案+。例如中華民國新型專利公告 5虎第573823號中’其揭露出一種導電探針之結構,其結 構包括有-外套,係具有—貫穿之容置空間,前端衝歷有 一漸縮部。又例如中華民國發明專利公告號第567315號 中,其揭露出一種測試用探針元件,其結構包括有一測試 操針,接觸至該被檢查體之測試點,一可動片可沿一基準 軸在一疋的範圍内移動。又例如中華民國新型專利公告號 第564949號中,其揭露出一種測試用探針裝置,其設有 一可配合組裝於測試治具之定位套筒。 而在該電信號量測探棒之裝置設計方面,亦有許多 的先前專利技術’例如中華民國發明專利公告號第571〇91 號中,其揭露出一種探針檢測裝置,其結構包括一固定座、 一探針基座,以可滑動方式設置於該第一位置與該第二位 置之間,其中該探針基座具有一通孔’· 一光纖連接器,設 置於該固定座,通過該探針基座之該通孔;以及一探針, 以懸I方式$又置於该探針基座,且該光纖連接器射出之光 線投射在該採針上。 6 1280373 【發明内容】 本發明所欲解決之技術問題: 儘管在先前技術中,已有許多有關於電信號量測探 棒結構及裝置之設計,但在傳統所使用之電信號量測探棒 之接地線設計中,都是使用如第一圖所示之傳統接地線設 計。在實際之量測作業時,由於其接地線必需延伸拉引相 當長度才能連接至待測電路板之接地點,故該電信號量測 探棒周圍環境中之幅射雜訊(Radiated Noise)會被收集於該 * 接地線,使得電信號之量測準確度受到該幅射雜訊之影 響。 第二圖顯示使用傳統電信號量測探棒對一待測電路 板之電信號進行量測時所得到之信號曲線圖。在第二圖所 示之信號曲線圖中,其顯示量測出之正常電信號曲線Vsl 中可能會發生雜訊信號Vnl,其雜訊信號Vnl之雜訊值 為552mV,此一雜訊信號將會影響到正常電信號之量測 $ 準確度。 因此,基於實際之需求,實有必要設計出一種可有 效防制幅射雜訊影響之電信號量測探棒。 本發明之主要目的即是提供一種電信號量測探棒之 接地線幅射雜訊防制裝置,期能使被收集至電信號量測探 棒之幅射雜訊能有效地予以降低。 本發明之另一目的是提供一種包括有雜訊防制繞線 之電信號量測探棒之接地線幅射雜訊防制裝置,其除了具 有接地連接之功能,又具備防制幅射雜訊之功能。 ^280373 本發明解決問題之技術手段: 本發明為解決習知技術 ^ 在電信號量測探棒之探針固^、所採用之技術手段係 -雜訊防制繞線,該雜訊防制:區’又周環繞設有 號量測探棒之握持區段之接地^ 2係連接於該電信 號量測探棒之長軸方向經由延伸而區二端:沿著該電信 探針固定區段前端之接觸探針之位二在近於該 ¥,該雜訊防制繞線之另一〜 =際之置測作業 失持或其它方式接觸於受測電路板之接地=夾持件,可 本發明對照先前技術之功效: 相較於現有技術,树明有效防制傳統電 ‘棒之接轉會收集幅_訊之㈣,藉由本發明之^ =制繞線設計’使被收集至電信號量測探棒之幅射軸能 有效地予以降低。本發明巾所包括之雜訊防舰線可作為 f射雜=之導引及屏蔽,其雜訊防制繞線除了具有接地連 接之功能’又具備防制幅射雜訊之功能,可進 號量測之準確度。 #1280373 IX. Description of the Invention: [Technical Field] The present invention relates to a noise prevention technology for an electrical signal measuring probe, and more particularly to a noise surrounding a circumference of the electrical signal measuring probe The anti-winding design can effectively prevent the radiation noise from being collected on the grounding line of the electric signal measuring probe. [Prior Art] The probe measurement probe holder is an auxiliary tool that engineers often use when measuring electronic signals. It is used in the circuit design, development stage, and production, verification, testing, and maintenance of products. The signal probe will be used to measure the signal of the board to be tested. Since the signal measurement probe occupies a very important position in the development and quality control process of the entire electronic product, it has spared no effort in the prior art, and has the prior patent of the probe. structure. ^ Needle The first picture shows the stereoscopic display of the traditional electric signal measuring probe on the electrical signal measurement of the circuit board to be tested (4). ^ Dingzhi electric semaphore probe i has a probe section n, combined with a contact probe 12, which can be hooked or clamped to - the electricity to be tested: the knot is measured at 21 ° The rear end of the probe cassette section 11 is further coupled to a holding section 14 via the _4 sleeve 2 section 13. The extension X holding area 14 has a grounding (4) grounding wire 15 (four) of considerable length to the circuit board 2 to be tested =: = 1280373 to be clamped or otherwise connected to the grounding point of the grounding point 15 & $ Edge ground 22 of board 2 to be tested. ―, (4) The end of the holding area & 14 is connected to the electric signal measured by the electric signal measuring rod i via the signal transmission line 17 四 (4) The transmission line 17 is transmitted to the raid 3 as a sub-pray and display No, or for recording purposes. And other traditional electrical signal measurement probe design can also be found in . Second month; 1 open patent month;! case +. For example, in the Republic of China, the new patent publication No. 5, 573, 823, which discloses a structure of a conductive probe, the structure of which includes a jacket, has a through space, and has a tapered portion at the front end. For example, in the Republic of China Invention Patent No. 567315, a test probe component is disclosed, the structure comprising a test needle contacting a test point of the object to be inspected, and a movable piece can be along a reference axis Move within a glimpse. Further, for example, in the Republic of China, New Patent Publication No. 564949, a test probe device is disclosed which is provided with a positioning sleeve which can be fitted to the test fixture. In the design of the device for the electrical signal measuring probe, there are also many prior patented technologies, such as the Republic of China Invention Patent No. 571-91, which discloses a probe detecting device whose structure includes a fixed structure. a probe base is slidably disposed between the first position and the second position, wherein the probe base has a through hole '· a fiber optic connector disposed on the fixed seat, through the The through hole of the probe base; and a probe is placed on the probe base in a suspension manner, and the light emitted by the optical connector is projected on the picking needle. 6 1280373 SUMMARY OF THE INVENTION The technical problem to be solved by the present invention: Although in the prior art, there have been many designs for electrical signal measuring rod structures and devices, but conventionally used electrical signal measuring rods In the design of the grounding wire, the traditional grounding wire design as shown in the first figure is used. In the actual measurement operation, since the grounding wire must extend and pull a considerable length to connect to the grounding point of the circuit board to be tested, the Radiated Noise in the environment around the electrical signal measuring probe will It is collected on the * grounding line so that the measurement accuracy of the electrical signal is affected by the radiation noise. The second figure shows the signal curve obtained by measuring the electrical signal of a circuit board to be tested using a conventional electric signal measuring probe. In the signal graph shown in the second figure, the noise signal Vnl may occur in the normal electrical signal curve Vsl measured by the display quantity, and the noise value of the noise signal Vnl is 552 mV, and the noise signal will be Will affect the accuracy of the normal electrical signal measurement. Therefore, based on actual needs, it is necessary to design an electrical signal measuring probe that can effectively prevent the effects of radiated noise. SUMMARY OF THE INVENTION The main object of the present invention is to provide a ground line radiation noise control device for an electrical signal measuring probe, which can effectively reduce the radiation noise collected by the electrical signal measuring probe. Another object of the present invention is to provide a grounding wire radiation noise preventing device including an electrical signal measuring probe with a noise preventing winding, which has the function of grounding connection and has anti-radiation noise. The function of the news. ^280373 The technical means for solving the problem of the present invention: The present invention is to solve the problem of the conventional technology in the probe of the electric signal measuring probe, and the technical means adopted is the noise preventing winding, the noise prevention and control The area is surrounded by a grounding section of the gripping section of the measuring probe. The 2 is connected to the long axis of the electric signal measuring probe via the extension and the two ends of the section: fixed along the telecommunication probe The position of the contact probe at the front end of the segment is close to the ¥, and the other of the noise control windings is lost or otherwise contacted with the ground of the circuit under test. The invention can compare the effects of the prior art: Compared with the prior art, the tree effectively prevents the traditional electric 'bar transfer and collects the image_4 (4), and is collected by the ^= winding design of the invention The radiation axis of the electric signal measuring probe can be effectively reduced. The noise anti-ship line included in the towel of the invention can be used as the guidance and shielding of the f-rays, and the noise control winding has the function of grounding connection and has the function of preventing radiation noise. The accuracy of the measurement. #

本發明所採用的具體實施例,將藉由以下之 及附呈圖式作進一步之說明。 貝也1J 【實施方式】 參閱第三圖所示,係顯示〆配置有本發明幅射雜訊 !28〇373 . 防制裝置之電信號量測探棒之示意圖。 佳實施例說明中,若與前述習知丄ΐ:下之本發明杈 件,乃標示以相同之參照編號,測探棒相同之構 ,三圖巾顯示本發明之電信號量_棒丨 探 =定區段π ’其前端結合有—接觸探針η,⑭勾持 ,夾持於-待測電路板2之敎受測點η 針定 區段11之後端經由一延伸區段13 Λ木’’ 以使操作者在使用該電信號量測探=握持區段14, I 里以衣棒1時,可穩定握持。 :握持區段u之末端經由一信號傳輸線17連接於 ϋι I3’㈣電信號量測探棒1所量測出之電信號 柄、^刻5號傳輸線17傳送至該測試設備3,以作為分 斤、>員不、或記錄之用。該握持區段14設有一接地端141。 ,發明中係以—雜訊防制繞線4繞設在該電信號量 之延伸區段13及探針固定區段U之周環,該雜訊 1=線4之-&連接於該電信號量測探棒】之握持區段 丨具也立而141 ’而另一端則沿著該電信號量測探棒1之 向—直延伸至鄰近於該探針固定區段U前端之接 "技2之位置,再被導引出一小段長度,姐在該雜訊 制之末端可結合一接地點夾持件41。 ,只際之置測作業時,該接地點夾持件41係可夾持 方式接觸於受測電路板2之接地點22。該雜訊防 j 4係可採用鍵锡單心線或其它導線材料,以作為雜 σ蜍彳丨及屏蔽之功能。 藉由该雜訊防制繞線4之配置,使得本發明之電信 9 1280373 1在進行電信號之量測時,可以有效降低周圍 題,使^田輯訊(Radiated N〇ise)被收集於接地線之問 包信號之量測具有較精準之功能。 待測圖係㈣在使用本發明之電錢量測探棒對一 橫座樟為=電㈣進行量測時所得狀信號曲線圖,其 式中所ΐ間’而縱座標係表示量測出之信號電壓值。圖 不’正常電信號曲線為Vs2 ’而雜訊信號為νη2。 測探棒信號曲線圖與第二圖所示,統電信號量 之 之 巾較之,在尚未制本發明之技術所量測出之 === 552mv,而在採用本發明技術戶_出之幅 能將傳㈣ V,兩者差距達482 mV,足證本發明確 、傳、,先技術中被收集於接地線之幅射雜訊予以有效防 1 ’進而提昇了電信號量測之準確度,故本發且 上之利用價值。 八η 惟以上之實施例說明,僅為本發明之較佳實施例說 ’凡習於此項技術者當可依據本發明之上述實施例說明 而作其它種種之改良及變化。然而這些依據本發明實施例 ^作的種種改良及變化’當仍屬於本發明之發明精神及界 疋之專利範圍内。 【圖式簡單說明】 第一圖顯示傳統電信號量測探棒在進行待測電路 號量測時之立體示意圖; ^ 第二圖顯示使用傳統電信號量測探棒對一待測電路板之電 1280373 信號進行量測時所得到之信號曲線圖; 第三圖顯示一配置有本發明電信號量測探棒之雜訊消除結 構之電信號里測採棒之不意圖, 第四圖顯示使用本發明之電信號量測探棒對一待測電路板 之電信號進行量測時所得到之信號曲線圖。The specific embodiments of the present invention will be further described by the following drawings. Beiyi 1J [Embodiment] Referring to the third figure, it is shown that the radiation noise of the present invention is arranged in the !28〇373. The electrical signal measuring probe of the control device. In the description of the preferred embodiment, if the present invention is the same as the same reference number and the probe is the same, the three-drawer shows the electrical signal amount of the present invention. = the fixed section π 'with its front end combined with the contact probe η, 14 hooked, clamped to the circuit board 2 to be tested, the measured point η, the pinned section 11 rear end, via an extension section 13 '' so that the operator can use the electric semaphore to detect that the grip section 14 is in the grip section 14, I can be stably held. The end of the holding section u is connected to the electric signal handle measured by the electric signal measuring probe 1 via a signal transmission line 17, and the transmission line 17 is transmitted to the testing device 3 as A small amount, a member, or a record. The holding portion 14 is provided with a grounding end 141. In the invention, the noise preventing winding 4 is wound around the peripheral portion of the extending portion 13 of the electrical signal amount and the probe fixing portion U, and the noise 1 = line 4 - & The electric signal measuring probe] the grip section cooker is also standing 141' and the other end is along the direction of the electric signal measuring probe 1 - extending straight to the front end of the probe fixing section U The position of the "Technology 2" is then guided for a short length, and the sister can incorporate a grounding point holding member 41 at the end of the noise system. The grounding point holding member 41 is in a clamping manner to contact the grounding point 22 of the circuit board under test 2 during the only time of the test operation. The noise protection j 4 can be used as a key singular or other wire material for the function of σ 蜍彳丨 and shielding. With the configuration of the noise control winding 4, the telecommunications 9 1280373 1 of the present invention can effectively reduce the surrounding problems when measuring the electrical signals, so that the Radiated N〇ise is collected. The measurement of the signal signal of the grounding wire has a more precise function. The graph to be tested (4) is a graph of the obtained signal when the cross-bar 樟 is = electric (four) is measured using the electric money measuring probe of the present invention, and the ordinate is measured by the ordinate. Signal voltage value. The graph does not have a normal electrical signal curve of Vs2' and a noise signal of νη2. The test bar signal graph is the same as that shown in the second figure, compared with the towel of the unified electric signal amount, which is measured by the technology of the present invention === 552 mv, and the technical household of the present invention is used. The amplitude can pass (4) V, the difference between the two is 482 mV, which proves that the invention is confirmed, transmitted, and the radiation noise collected in the grounding line in the prior art is effectively prevented 1', thereby improving the accuracy of the electrical signal measurement. Degree, so the use value of this issue. The embodiments described above are merely illustrative of the preferred embodiments of the invention, and other modifications and changes can be made by those skilled in the art in light of the above-described embodiments of the invention. However, the various modifications and changes made in accordance with the embodiments of the present invention are still within the scope of the invention and the scope of the invention. [Simple description of the figure] The first figure shows a stereoscopic diagram of the traditional electric signal measuring probe when measuring the circuit number to be tested; ^ The second figure shows the use of the traditional electric signal measuring probe for a circuit board to be tested. The signal curve obtained when measuring the signal of 1280373; the third figure shows the intention of measuring the rod in the electrical signal of the noise cancellation structure equipped with the electrical signal measuring probe of the invention, and the fourth figure shows the use The signal graph obtained by the electric signal measuring probe of the present invention when measuring the electrical signal of a circuit board to be tested.

【主要元件符號說明】 1 電信號量測探棒 11 探針固定區段 12 接觸探針 13 延伸區段 14 握持區段 141 接地端 15 接地線 16 接地端 2 待測電路板 21 受測點 22 _接地點 3 測試設備 4 雜訊防制繞線 41 接地點夾持件 11[Main component symbol description] 1 Electric signal measuring probe 11 Probe fixing section 12 Contact probe 13 Extension section 14 Holding section 141 Grounding terminal 15 Grounding wire 16 Grounding terminal 2 Circuit board to be tested 21 Measuring point 22 _ grounding point 3 test equipment 4 noise control winding 41 grounding point clamping part 11

Claims (1)

1280373 、申清專利範圍: h禆二:t號量測探棒之接地線幅射雜訊防制裝置, =二,量測探棒之探針岭區段前端設有一 區p,、,妾觸☆而經由一延伸區段連結於一握持 :電又信區段具有一接地端,其特徵在於 繞設有二雜訊:杯之延伸區段及探針固定區段周環 棒之幅射雜訊μ繞線’用以防制該電信號量測探 連接於該電信號量測探防:繞線之-端係 另一端則沿著兮恭+检持區段之接地端,而 伸區段一直延之長軸方向經由延 觸探針之位置。 ^亥铋針固定區段前端之接 3·如申請專利範圍第i 幅射雜訊防制穿置发“。唬1測探棒之接地線 錫單心線料_^;^嶋係採用鍛 121280373, Shenqing patent scope: h禆2: t-number measurement probe grounding wire radiation noise control device, = 2, the probe probe section of the probe is provided with a zone p,,, Touching ☆ and connecting to a grip via an extension section: the electric signal section has a grounding end, and is characterized by being provided with two noises: an extension section of the cup and a circumference of the probe fixing section The radiation noise μ winding 'is used to prevent the electrical signal measurement from being connected to the electrical signal detection and prevention: the other end of the winding is along the ground end of the 检 + + detection section, and The extension section extends the direction of the long axis through the position of the extension probe. ^Hui 铋 pin fixed section front end of the connection 3 · If the patent application scope i-th radiation noise prevention wear-through ". 唬 1 test probe ground wire tin single core material _ ^; ^ 嶋 system using forging 12
TW94110027A 2005-03-30 2005-03-30 Apparatus for preventing ground wire radiation noise from electrical signal measurement probe TWI280373B (en)

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