TWM375864U - Buoy-type liquid-level measurement apparatus capable of detecting buoy's falling off - Google Patents

Buoy-type liquid-level measurement apparatus capable of detecting buoy's falling off Download PDF

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Publication number
TWM375864U
TWM375864U TW97221907U TW97221907U TWM375864U TW M375864 U TWM375864 U TW M375864U TW 97221907 U TW97221907 U TW 97221907U TW 97221907 U TW97221907 U TW 97221907U TW M375864 U TWM375864 U TW M375864U
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Taiwan
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circuit
liquid level
voltage
bias
float
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TW97221907U
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Chinese (zh)
Inventor
Ming-Chou Chen
Jack Chen
Roger Chang
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Finetek Co Ltd
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Priority to TW97221907U priority Critical patent/TWM375864U/en
Publication of TWM375864U publication Critical patent/TWM375864U/en

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五 新型說明: 【新型所屬之技術領域】 量以係落之浮球式液位 ;丨;子訊號供使用者運用且能偵測浮球脫離以 ς)二組合或液位偵測桿組合内之電阻網路斷線(開、 用用於化學儲液槽、油槽、水槽等工業 【先前技術】 習知之浮球式液位量測裝置動作原理如第四圖所 ::其包括-第一偏壓電路(13)、一第一類比,數位 έ :電路(14)、一中央處理單元(15)、-液位偵測桿 :“23),其包括由一顆以上電阻(27)與一顆以上磁 更開關(28)組成之電阻網路(26)、一環扣(29),以及 -洋球(24)。浮球(24)内部包括一磁鐵(25)。盆 二偏壓電路(13)提供穩定直流偏Μ,假設其電壓 —b丨as,連接至電阻網路(26)係由電阻r(…、 R(n-1)...到R(2)、R⑴等電阻(27)串聯而成電阻 :掲路(26)另一端到電路地,且R⑻〜R(1)的電阻值皆 ’假設其電阻值=R,每顆電阻(27)之間接一顆 ,黃開關(28) ’所有磁簧開關的另-端共接至第一 颁比/數位轉換電路(彳4)的輸入端,電阻網路口6)盥 磁簧開關(28)係置於一長條形電路板(未圖示)上。當 補充 洋球(24)内部磁鐵(25)導通液位#、測桿^^ 對應位置的磁簧開關(28),基於分^律可在磁菩 開關(28)的共接端(亦即第一類比/數位電路轉換電 路(14)的輸入端)得到一個與浮球(24)位置成正比的 電壓訊號,假設其電壓=ΝΛη。此電壓經過第一類比 數位轉換電路(14) ’可轉換為與浮球位置成正比的 數位訊號’輸入後端之中央處理單元(15),處理為 使用者所需訊號供使用者運用。 的計算如下式(a),Vin等於輸人偏壓_的乘 最低點到浮球高度的阻值(Rxh)除電阻網路總阻值 (Rxn),經化簡可得v丨门正比於浮球高度卜。 …r Rxh h 及⑴ + i?(2) + ⑶ + ··. + 及⑻—X —Rxn = ^bias X ~ 其中,為定值 找 故匕〇c λ (a) 上述習知技術在一般情況下可正確測量液體高度 位置’然而此電路有一問題,當環扣受侵蝕或外: 因素鬆脫,浮球(24)脫離液位偵測桿組合後,所有 磁簧開關(28)即呈開路狀態,將造成第一類比數位 轉換電路(14)的輸出訊號不穩定,因其輸入端呈浮 動態floating),導致浮球式液位量測裝置輸出訊號 不穩定,無法反應桶槽(2彳)内待測液位(22)高度。一 般桶槽(21)及桶槽内液體多為不透明材質,若不把 液位計之液位偵測桿組合(23)整支抽出,無法確定 浮球(24)是否脫離液位偵測桿組合(23)。 -ll\ yet ζι 年月 之Π头技術還有另一問題’液位偵測桿二组合(2 “ 二有時會長達數公因此液位侦測桿組合㈣ ;條形電路板(含有電阻網路(24)及磁菁開關 ) ):、需由數片長條形電路板連接而成,然而當 液繞性愈高,於運送過程中或桶槽(2”内 停步:路=可能造成液位偵測桿組合(23)内之長 全=路板接合處斷線,使浮球式液位量測裝置完 【新型内容】 (2^^、習知浮球式液位量測裝置無法偵測浮球 内 液幻貞測桿組合(23)及液位㈣桿組合(23) …,两路(26)接合處斷線的問題 ㈣脫離液"測桿组合(23)=位 脫、、且,(23)内電阻網路(26)斷線的可谓 脫洛之浮球式液位量測裝置。 包=創作之可偵測浮球脫落之浮球式液位量測裝置 -液位^測桿組合(23)’内含長條形電路板(未圖 =、電阻網路(26)、磁簧開關(28) ’長條形電路 载電阻網路(26)及磁簧開關(28),電阻網路 ⑽)由一顆以上電阻(27)相串聯而成,一端接第一 路。3)輸出之直流電壓’另一端接至電路 也且母兩顆電阻(27)之連接點接一顆磁簀開關 (28),且所有磁簧開關(28)的另一端共接至第一 ^ 比/數位轉換電路(14)的輸入端; 一浮球(24) ’套於液位偵測桿組合(23),係用以漂浮 於液面,浮球内含磁鐵(25),係用以感應液位偵 測桿組合(23)内對應位置之磁簧開關(28)使之呈 知·路狀態,使電阻網路(26)產生與待測液位(22) 高度成正比之直流電壓; %扣(29),固定於液位偵測桿組合(23)底端,係用 於避免浮球(24)脫離液位偵測桿組合(23); 一第一偏壓電路(1 3),係用以產生直流偏壓,提供 液位谓測桿組合(23)内部電阻網路(26)之偏壓; 一第一類比/數位轉換電路(14),係用以量測液位偵 測桿組合(23)内部電阻網路(26)分壓經由磁簧開 關(28)輸出之電壓,此電壓與待測液位(22)高度成 正比’經此電路轉換為數位訊號後輸出; 一中央處理單元,係用以接收第一類比/數位轉換電 路(彳4)轉換後的數位訊號,並處理為使用者所 的訊號; 拗峻電路(1 2),係用產 '〜'晰 ,留* 路(13)大的直流偏壓’其輸A電壓連接至浮球脫 離感知電阻(1 1); .浮球脫離感知電阻(11),一端接第二偏壓電路 (12),—端接第一類比/數位轉換電路(14)之輪 端;Five new descriptions: [New technical field] The volume of the floating ball type; 丨; sub-signal for the user to use and can detect the float detachment ς) two combinations or level detection rod combination The resistor network is disconnected (opened, used in chemical storage tanks, oil tanks, water tanks, etc. [Prior Art] The floating principle of the float type liquid level measuring device is as shown in the fourth figure:: It includes - first Bias circuit (13), a first analogy, digital έ: circuit (14), a central processing unit (15), - liquid level detecting rod: "23", which includes more than one resistor (27) a resistor network (26), a buckle (29), and a ocean ball (24) composed of more than one magnetic switch (28). The float (24) internally includes a magnet (25). The circuit (13) provides stable DC bias, assuming its voltage - b丨as, connected to the resistor network (26) by the resistor r (..., R(n-1)... to R(2), R(1) The equal resistance (27) is connected in series to form a resistor: the other end of the circuit (26) is connected to the circuit ground, and the resistance values of R(8) to R(1) are both assumed to have a resistance value = R, and one resistor is connected between each resistor (27). , yellow switch (28) 'all The other end of the reed switch is connected to the input end of the first exponential/digital conversion circuit (彳4), and the resistance network port 6) the reed switch (28) is placed on a long strip circuit board (not shown). ). When replenishing the inner ball (24), the internal magnet (25) turns on the liquid level #, the measuring rod ^^ corresponds to the position of the reed switch (28), based on the division law can be in the common end of the magnetic switch (28) (ie, the input of the first analog/digital circuit conversion circuit (14)) obtains a voltage signal proportional to the position of the float (24), assuming its voltage = ΝΛη. This voltage is passed through a first analog-to-digital conversion circuit (14). ) 'The digital signal that can be converted to be proportional to the position of the float' is input to the central processing unit (15) of the back end, and is processed for the user's desired signal for the user to use. The calculation is as follows (a), Vin is equal to the input The value of the maximum value of the bias voltage _ to the height of the float ball (Rxh), in addition to the total resistance value of the resistance network (Rxn), can be obtained by reducing the height of the floating ball height. ...r Rxh h and (1) + i?(2) + (3) + ··· + and (8)—X—Rxn = ^bias X ~ where, for the fixed value, find 匕〇c λ (a) The above-mentioned prior art In this case, the liquid height position can be measured correctly. However, there is a problem with this circuit. When the buckle is eroded or the outside: the factor is loose, after the float ball (24) is separated from the liquid level detecting rod, all the reed switches (28) are presented. The open circuit state will cause the output signal of the first analog-to-digital conversion circuit (14) to be unstable, because the input terminal is floating and floating, which causes the output signal of the floating ball type liquid level measuring device to be unstable and cannot respond to the barrel slot (2)彳) The height of the liquid to be tested (22). Generally, the liquid in the tank (21) and the tank is mostly opaque. If the liquid level detection rod combination (23) of the liquid level gauge is not extracted, it cannot be determined. Whether the float (24) is out of the level detection lever combination (23). -ll\ yet ζ 年 年 还有 还有 还有 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' Network (24) and magnetic cyan switch)): It needs to be connected by several long strips of circuit boards. However, the higher the liquid flow, the more it stops during transport or in the tank (2": road = possible Cause the liquid level detection rod combination (23) long full = road board joint break, so that the float type liquid level measuring device is finished [new content] (2^^, the conventional float type liquid level measurement The device cannot detect the floating illusion rod combination (23) and the liquid level (four) rod combination (23) ..., the problem of disconnection at the junction of the two (26) joints (4) detachment liquid " struts combination (23) = The positional off, and, (23) the internal resistance network (26) is broken. It can be described as the floating ball type liquid level measuring device. Package = created float ball type liquid level measurement The device-level control rod combination (23)' contains a long strip circuit board (not shown =, resistor network (26), reed switch (28) 'long strip circuit resistance network (26) and Reed switch (28), resistor network (10) One or more resistors (27) are connected in series, one end is connected to the first way. 3) The DC voltage of the output is connected to the circuit and the connection point of the two resistors (27) is connected to a magnetic switch (28). And the other end of all the reed switches (28) is connected to the input end of the first analog/digital conversion circuit (14); a float ball (24) is placed over the liquid level detecting rod assembly (23), It is used to float on the liquid surface, and the float contains a magnet (25) for sensing the reed switch (28) corresponding to the position in the liquid level detecting rod assembly (23) to make it known to the road state, so that the resistance The network (26) generates a DC voltage proportional to the height of the liquid level to be tested (22); the % buckle (29) is fixed to the bottom of the level detection rod assembly (23) and is used to avoid the float (24) Disengaged from the liquid level detecting rod combination (23); a first biasing circuit (13) for generating a DC bias, providing a bias of the internal resistance network (26) of the liquid level sensing rod combination (23) a first analog/digital conversion circuit (14) for measuring the voltage of the liquid level detecting rod combination (23) internal resistor network (26) divided by the voltage of the reed switch (28), this electric It is proportional to the height of the liquid level to be tested (22). After the circuit is converted into a digital signal, it is output. A central processing unit is used to receive the digital signal converted by the first analog/digital conversion circuit (彳4) and processed. For the user's signal; 拗 电路 circuit (1 2), is used to produce '~' clear, leave * road (13) large DC bias 'its A voltage is connected to the float ball out of the sense resistor (1 1) The float ball is separated from the sensing resistor (11), one end is connected to the second bias circuit (12), and the terminal end of the first analog/digital conversion circuit (14) is terminated;

修正I 補充I 年月曰 • =(23)’浮球脫離感知電阻⑴)會將磁簧 二,亦即第一類比/數位轉換電路(13)的輪入端的 電壓提升至第二偏璧電路(12), (12)產生之直流偏麼大於第-偏壓電路(二生: ^流偏I,當中央處理單元(15)感知第_類比/數位 4換電路(14)的輸人電塵切第-偏>1電路(13)之 輸出電即表不浮球脫離液位γ貞測桿組合⑻)。 為進-步能制液則貞測桿組合内之電路板谭接 處斷線’可於電路中再加入: 一迴路斷線感知電阻(16),其一端連接至電阻網路 (26),另一端連接至電路地; —第二類比/數位轉換電路(17),其輸人端為迴路斷 線感知電阻(16)與電阻網路(26)的共接,點’轉換完 成之數位訊號輸出至中央處理單元(15). 當電阻網路(26)中任一處開路(斷線),第二類比/ 數位轉換電路(17)的輸人端會得到零伏特電壓,並 且轉換為數位訊號輪出至中央處理單元(15),當中央 =理單元(1 5)偵測第二類比/數位轉換電路(1 7)之 輸出訊號為零伏特,即表示電阻網路(26)斷線。 【實施方式】 第一圖所示為本創作可偵測浮球脫落之浮球 位量測裝置之第一實施例,其包括一浮球脫離感: 電阻(11)、-第二偏壓電路(12)、〜第—偏壓電路 補充 (13)、一第一類比/數位轉換電路本(14)、3^^^· 理單元(15)、一液位偵測桿組合(23)、一浮球(24), 以及一環扣(29)。 係供置入一盛有待測液位(22)的桶槽(21)中,浮球 (24)的比重小於待測液體,因此浮球(24)可漂浮於液 面’浮球(24)内含之磁鐵(25)感應液位偵測二合内 相同高度的磁簧開關(2 8),第一偏壓電路(]3)產 =電麗供液位債測桿組合(23)内電阻網路(Μ)分 i,分壓電壓與浮球(24)高度成正比,輸入至 頰比/數位轉換電路(14)轉換為數位 =元,接收其數位訊號並處理為使用者所= 第ί二t球(24)脫離液位偵測桿組合(23)範/一 i包路(12)與一浮球脫離感知電阻 第一類比/數位轉換電路M 广 )曰把 電路(12)心山 輸電壓提升到偏壓 壓二C’且由於第二偏㈣路(叫的電 只要感二第=?此中央處理單元⑽ 於弟電路(13),即表示浮球(24)脫離:.'。果大 測裝“C測浮球稅落之浮球式液位量 致相同,不心:其基本架構舆第-實施例大 ⑽内之長侔v 一步偵測液位偵測桿組合 、 '、形電路板焊接處斷線,於 入坦路斷線感知電 ,1 加 路㈣),另1連接至電路)地接至電阻網 电峪地,以及一第二類比/數 年月曰 補充 位轉換雷跑^彳7、# _彌 盥♦阳、(),其輸入端為迴料線感知 出至中央處理星二接點’轉換完成之數位訊號輪 路⑽綠、;當電阻網路(26)中任一處開 得到零伏特弟電=比/數位轉換電路(17)的輸入端會 ^ ? _ 亚且轉換為數位訊號輸出至中央 ί!: ),當中央處理單元(15)偵測第二類比/ 打奐電路(17)之輸出訊號為零伏 阻網路(26)斷線。 Ρ衣不電 4:本創:之具體實施電路,則請進-步參閱第 本創作之第二㈣電路(12)之輸 -於弟-偏壓電路(13)的輸出電壓,兩電 : ^計者需求’其範圍為1毫伏特至30伏特之門 = = 本創作實為一極具進步性與二:之 未見於刊物或公開使用,符合新型專 明要件,麦依法提出申請。 【圖式簡單說明】 ,圖.如本創作第一實施例的功能方塊圖。 f,圖:係J創作第二實施例的功能方塊圖。 弟二圖:係第二圖之功能方塊圖的具體實施電踗 第四圖:係習知浮球式液位計之功能方塊圖。路 【主要元件符號說明】 1a,1b,1c電路板 M375864Amendment I Supplementary Year 曰• =(23) 'Floating ball detachment sensing resistance (1)) boosts the voltage of the coil 2, that is, the wheel-in terminal of the first analog/digital converter circuit (13) to the second yaw circuit (12), (12) The DC bias generated is greater than the first-bias circuit (two generations: ^ flow offset I, when the central processing unit (15) senses the input of the _ analog/digital 4-switch circuit (14) The output of the electric dust-cutting-bias-first circuit (13) means that the float is not separated from the liquid level γ 贞 bar combination (8)). In order to make the liquid in the step-by-step process, the circuit board tandem disconnection in the test rod combination can be added to the circuit: a loop disconnection sensing resistor (16), one end of which is connected to the resistor network (26), and the other One end is connected to the circuit ground; - the second analog/digital conversion circuit (17), the input end of which is the connection of the loop disconnection sensing resistor (16) and the resistor network (26), and the point-converted digital signal output To the central processing unit (15). When any of the resistor networks (26) is open (broken), the input of the second analog/digital converter circuit (17) will get zero volts and be converted to digital signals. Turning to the central processing unit (15), when the central = rational unit (15) detects that the output signal of the second analog/digital conversion circuit (17) is zero volts, it means that the resistance network (26) is disconnected. [Embodiment] The first embodiment shows a first embodiment of a float measuring device capable of detecting the falling off of a floating ball, which includes a floating ball detachment feeling: a resistor (11), a second bias voltage Road (12), ~ first - bias circuit supplement (13), a first analog / digital conversion circuit (14), 3 ^ ^ ^ · unit (15), a liquid level detection rod combination (23 ), a float (24), and a buckle (29). It is placed in a tank (21) containing the liquid level to be tested (22). The specific gravity of the float ball (24) is smaller than the liquid to be tested, so the float ball (24) can float on the liquid surface 'float ball (24) ) The included magnet (25) senses the liquid level to detect the same height of the reed switch in the two-in-one (2 8), the first bias circuit (3) produces = the electric supply liquid level debt measuring rod combination (23) The internal resistance network (Μ) is divided into i, and the divided voltage is proportional to the height of the float ball (24). The input to the cheek ratio/digital conversion circuit (14) is converted into a digit=yuan, and the digital signal is received and processed as a user. = 第 二 2t ball (24) off the liquid level detection rod combination (23) van / one i package road (12) and a float ball detachment sensing resistance first analog / digital conversion circuit M wide) 12) The heart-to-mount voltage is boosted to the bias voltage of two C' and because of the second partial (four) way (the called electric only has the second sense = the central processing unit (10) is the younger circuit (13), which means the float (24) Detachment: .'. Fruit test "C measured float ball tax float level liquid level is the same, not care: its basic structure 舆 first - embodiment large (10) long 侔 v one step detection liquid level detection Measuring rod combination, ', shaped circuit board welding Disconnection, inductive power in the line of the road, 1 plus (4)), the other is connected to the circuit) grounded to the resistance network, and a second analog/years of the 曰 曰 位 雷 彳 彳 彳7, # _ 盥 盥 阳, (), its input is the return line to the central processing star two contacts 'converted digital signal wheel (10) green; when the resistance network (26) The input is terminated by the zero-volts power conversion circuit (17). The input terminal of the analog/digital conversion circuit (17) is converted to a digital signal output to the center ί!: ), when the central processing unit (15) detects the second analogy/ The output signal of the snoring circuit (17) is zero volt-resistant network (26) disconnected. Ρ衣不电4: 创创: The specific implementation circuit, please proceed to step-by-step reference to the second (four) circuit of the second creation ( 12) Loss - the output voltage of the brother-bias circuit (13), two electricity: ^ The demander's range is from 1 millivolt to 30 volts = = This creation is a very progressive and Second: it is not found in the publication or public use, in line with the new special requirements, Mai applied for it according to law. [Simple diagram of the diagram], Figure. The first embodiment of the creation Functional block diagram f, Fig.: The functional block diagram of the second embodiment of the creation of the second embodiment. The second figure of the function block diagram of the second figure is the fourth figure: the conventional float type liquid level gauge Functional block diagram. Road [main component symbol description] 1a, 1b, 1c circuit board M375864

1 1浮球脫離感知電阻 1 2第二偏壓電路 1 3第一偏壓電路 14第一類比/數位轉換電路 1 5中央處理單元 1 6迴路斷線感知電阻 17第二類比/數位轉換電路 21桶槽 22待測液位 23液位偵測桿組合 24浮球 25磁鐵 26電阻網路 27電阻 28磁簀開關 29環扣1 1 float off sensing resistor 1 2 second bias circuit 1 3 first bias circuit 14 first analog / digital conversion circuit 1 5 central processing unit 1 6 circuit disconnection sensing resistance 17 second analog / digital conversion Circuit 21 barrel 22 to be tested liquid level 23 liquid level detection rod combination 24 float 25 magnet 26 resistance network 27 resistance 28 magnetic switch 29 buckle

1010

Claims (2)

六、申請專利範圍 Ύ丨修正_補充 液位量測裝置,係包 一種可偵測浮球脫落之浮球式 括: 漱位偵測桿組合 — 、馀升> %路板、.¾阻網路、 黃開關,長條形電路板承载電阻網路及 關,電阻網路由一顆以上電 ’、 第一俛m干抽么山 包阻相串聯而成,一端接 包吩/生 < 且抓电壓,另一端接 壓電路之夹老她.曰么略而 饮王禾 % 關 > 考地,且母不員電阻之間接一顆磁箬開 關,所有磁簧開關的另一端共 机 μ Λ 钱至弟一類比/數位 軲換笔路輸入端; :,,套於綱測桿组合,係用以漂浮於液面, ^球内含磁鐵,係用以感應液位偵測桿組合内對庫 立-之磁簧開關使之呈短路狀態,使電阻網路產生 與液面高度成正比之直流電壓; =扣,固定於液位偵測桿組合底端,係用於避免 敉脫離液位偵測桿組合; 彳 偏塵電路’係用以產生直流偏壓,提供液位# /則才干組合内部電阻網路偏壓; 、 =人4比/數位轉換t路,剌以量測液位债測桿 :3内部電阻網路分壓後輸出電壓,此電壓與液位 n度成正比,經此電路轉換為數位訊號後輸出; 中央處理單元’係用以接收第-類比/數位轉換電 換佼的數位訊號,並處理為使用者所需的訊 一第t偏壓電路,係用產生一個比第一偏 直抓偏壓,其輪出電壓連接至浮球脫離感知電阻. —浮球脫離感知電阻,一端接第二偏壓電路,一端接 類比/數位轉換電路之輸入端; ::球脫離液位偵測桿組合,所有磁箐開關即呈開 恕’子球脫離感知電阻會將磁簧開關共接端亦即 :、比/數位轉換電路的輸入端的電壓提升至 壓’由於第二偏壓電路產生之直流偏i 、弟料電路產生之直流偏壓,當中央處理單元 ! °類比/數位轉換電路的輸入電壓大於第一偏壓電 路之輸出電壓’即表示浮球脫離液位偵、測桿級合。Sixth, the scope of application for patents Ύ丨 correction _ supplementary liquid level measuring device, the package is a float that can detect the falling off of the float: 漱 position detection rod combination -, soaring > % road board, .3⁄4 resistance The network, the yellow switch, the long strip circuit board carries the resistance network and the off, the resistance network routes more than one electric ', the first 俛m dry pumping, the mountain block resistance is connected in series, and one end is connected to the package XX/sheng< Grab the voltage, the other end of the voltage circuit is the old one. 曰 略 略 and drink Wang Wo% off> 考地, and the mother does not have a magnetic switch between the resistors, the other end of all the reed switches μ Λ money to the younger class / digital 轱 exchange pen input; :,, set in the combination of the measuring rod, used to float on the liquid surface, ^ ball contains magnets, used to sense the level detection rod combination The inner pair of the library-reed switch makes it short-circuited, so that the resistor network generates a DC voltage proportional to the height of the liquid level; = buckle, fixed at the bottom end of the liquid level detecting rod assembly, is used to avoid the cockroach detachment Level detection rod combination; 彳 dust circuit 'is used to generate DC bias, provide liquid level# / Then combine the internal resistance network bias; , = human 4 ratio / digital conversion t way, 剌 to measure the liquid level debt measuring rod: 3 internal resistance network divided voltage output voltage, this voltage and liquid level n degrees In proportion, after the circuit is converted into a digital signal and output; the central processing unit is used to receive the digital signal of the first analog/digital conversion, and is processed into a t-th bias circuit required by the user. The utility model generates a biasing bias than the first biasing force, and the wheeling voltage is connected to the floating ball to separate the sensing resistor. The floating ball is separated from the sensing resistor, one end is connected to the second biasing circuit, and one end is connected to the analog/digital conversion circuit. Input; :: Ball is separated from the liquid level detection lever, all the magnetic switches are opened. The ball is separated from the sensing resistor. The reed switch is connected to the common terminal: the voltage of the input of the ratio/digital converter circuit is increased. To the voltage 'due to the DC bias generated by the second bias circuit, the DC bias generated by the circuit, when the input voltage of the central processing unit ! ° analog / digital conversion circuit is greater than the output voltage of the first bias circuit ' That means the float is out of liquid level detection. Spindle engagement stage. 2. Si”範圍第1項中所述之可偵測浮球脫落之浮 球式液位I測裝置,係進一步包括. 一!路斷線感知電阻,其-端連接至電阻網路,另一 為逹接至第一偏壓電路之參考地; -第:類比/數位轉換電路,其輪入端為迴 =阻,位谓測桿組合内電阻網路共接點,= :成之數位訊號輸出至中央處理單元; 合ΐ電/ί:::f生:直流偏璧連接至液位福測桿組 汚二、—&,電阻網路另-端連接至迴路斷線 感知電阻一端,迴路斷 峪鲫、,泉 偏壓電路之參考地,當線二:中:端 線),在迴路斷線感知電阻愈電阻=任一處開路(斷 伏特電璧,經由第二類比/數位接點會得到零 輸出至令央處理單元,當中數;^奥電路j字此點電厂堡值 田τ开處理早兀偵測第二類比/ 數位轉換電路之輪屮带 桿組合内電阻網路斷:壓為零坎特,即表示液位偵測 3·如申請專利範圍第彳至 脫落之浮球式液位量測=任〜項所述之可偵測浮球 電壓大於第—偏壓其第二偏堡電路之輪出 特。 “路之輸出電壓1毫伏特至30伏 4·如申請專利範圍第彳 測浮球脫落之浮球式液^ 項所述之所述之可偵 # ^ ^ ^ * 里'則裴置,其第一類比/數位 得換包路係内建於中央處理。 效位 如申請專利範圍第2項所述之 之浮球式液位量測裝置,A第“之可債測汁球脫落 内建於中央處理單元。〃—類比/數位轉換電路係2. The floating ball type liquid level I measuring device capable of detecting the falling off of the ball described in the first item of the Si" range further includes: a! line broken line sensing resistor, the - terminal is connected to the resistor network, and the other end One is connected to the reference ground of the first bias circuit; - the first: analog/digital conversion circuit, the turn-in end is back = resistance, the position is the total resistance of the internal resistance network of the measuring rod combination, =: into The digital signal is output to the central processing unit; the combined power / ί:::f raw: the DC bias is connected to the liquid level measuring rod group 2, -&, the other end of the resistor network is connected to the loop disconnecting sensing resistor One end, the circuit is broken, the reference point of the spring bias circuit, when the line two: the middle: the end line), the resistance in the loop is disconnected, the resistance is the resistance, the open circuit is broken (the power is broken, the second analogy is passed) / Digital contacts will get zero output to the central processing unit, the number of them; ^ Austrian circuit j word this point power plant Fort value field τ open processing early detection of the second analog / digital conversion circuit rim with rod combination Resistor network disconnection: pressure is zero kan, which means liquid level detection 3. If the patent application range is 彳 to the falling float The liquid level measurement = any of the items described in the item can detect that the float voltage is greater than the first-bias voltage of the second shift circuit. "The output voltage of the road is 1 millivolt to 30 volts. The first measure of the float-type liquid floated in the floating ball type ^ ^ can be detected in the ^ ^ ^ ^ * in the case, the first analog / digital conversion package is built in the central processing. As for the float-type liquid level measuring device described in item 2 of the patent application scope, A's "debt-receiving juice ball drop-off is built in the central processing unit. 〃-analog/digital conversion circuit system
TW97221907U 2008-12-08 2008-12-08 Buoy-type liquid-level measurement apparatus capable of detecting buoy's falling off TWM375864U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI611166B (en) * 2016-11-24 2018-01-11 桓達科技股份有限公司 Flexible float level gauge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI611166B (en) * 2016-11-24 2018-01-11 桓達科技股份有限公司 Flexible float level gauge

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