M382483 五、新型說明： 【新型所屬之技術領域】 [0001] 本創作係有關於一種檢測裝置，特別是指一種密閉容 器儲物存量之檢測裝置。 【先前技術】 [0002] 現今，在工業上都會使用到許多容器，以用於儲存物M382483 V. New description: [New technical field] [0001] This creation relates to a detection device, in particular to a detection device for a closed container storage. [Prior Art] [0002] Nowadays, many containers are used in the industry for storage.
料，例如燃料、高壓液態氣體或具危險性的液態化學溶 液。工業上為了有效管控物料，必須檢測容器中之儲存 物料的存量大小，因此物位檢測在現代工業生產過程中 具有重要地位》通過物位檢測可以確定容器中被測介質 的儲存量’以提供物料管理之依。容器令之健存物若 為液體介質，則液體介質液面的高低稱.為液位，兩種液 體介質的分介面之高低稱為介面，固體塊、散粒狀物質 的堆積高度稱為料位，而液位、介面與料位則統稱為物 位。如此用來檢測液位的儀表稱液位計，檢測分介面的 儀表稱介面計，檢測固體料位的儀表稱料位計，它們統 稱為物位計。在實際生產中，物位檢測有液位與料位等 ，而容器有幾十米高的大容器，也有幾毫米的微型容器 "質的特性更是千差萬別β因此，物位檢測方法很多 ，以適應各種不同的檢測要求。 常見的也是最直觀的物位檢測是直讀式方法，它是在 容器上開一些視窗以便進行觀測。對於液位檢測，可以 使用與被測容器相連通的玻璃管或玻璃板來顯示容器内 的液體尚度。這種方法可靠、結果準確，但它只能使用 在容器壓力不高，只求現場指示的被測物件。除此之外 第3頁/共16頁 表單編號Α0101 ，目前常用的物位檢測方法可分為下列幾種：靜壓式物 位檢測、浮力式物位檢測、電氣式物位檢測、射線式物 位檢測、聲學式物位檢測、重量式物位檢測等等。在這 些檢測方式中，以聲學式物位檢測使用效果最好，其優 點是檢測元件可以不與被測液體接觸，因而適合於強腐 蝕性、高壓、有毒、高粘度液體液位的測量。此外它還 不怕煙和光，不受電磁干擾，可測量各種液體的液位和 粉粒狀固體料位，還可用於測量兩種液體介面、液位差 、料位差等。此種測量方式應用十分普遍，現今海水深 度測量即採用這種方法。 聲學式物位檢測的原理报簡單，例如將水倒滿水杯 的過程中，可以聽到有兩個@率在變化，即知空氣柱和 水柱的升降有所關聯，從波i公式可得知，波長λ (柱 高）與頻率f是呈反比的關係，當水柱高越高，該介質傳 導的頻率就越高，反之則越低。把水注入容器的這個過 程，水柱逐漸升高，而空氣担的蝻率就越來越高。例如 大陸之申請專利證號2 0 0 81 0 0 7- 0 715儲液罐聲學液位報警 器即利用此原理來達成。此外，另有一超聲波式檢測， 其是利用測距的方式進行檢測，此方式是對待測物發射 超音波，並紀錄其發射超音波反彈來回所需的時間（t) ，利用時間（t)與速度（V)的公式H=vt/2，即可計算 出物位的位置（H)。 前述聲學式物位檢測的原理只在能將感測元件（如麥 克風或超聲波發射接受器等）置於容器内時才不受容器 本身材質與厚度影響，若容器内部因高壓或化學反應之 故無法置入感測器時，聲波穿透容器時常受到容器材質 表單編號A0101 第4頁/共16頁 與厚度的限制，使得反射獲得的訊號微弱無法辨識，使 .用上有一定的限制。由上述可知，現今檢測的方法，沒 有一種方式能適用在各種容器上，皆有其使用上的條件 與限制。因此找出新的密閉容器裡面的儲存物之存量的 檢測方式與裝置仍為目前一項重大的課題。 本創作即針對上述問題提出一種新的密閉容器之檢測 方式與裝置，提供一個適用於不易於容器内放置檢測儀 器或者因容器氣壁過厚聲波不易穿透檢測的一種新型裝 置，可容易且精確的測得容器裡之儲存物的存量大小， 以解決上述問題。 【新型内容】 [0003] 本創作之目的之一，在提供一種密閉容器儲物存量之 檢測裝置，經分析敲擊工具敲擊密閉容器產生的聲音訊 號，求得該密閉容器内之儲存物的存量大小，藉由本創 作之檢測裝置可更容易量測到密閉容器裡面之儲存物的 存量。 本創作密閉容器儲物存量之檢測裝置，其包含一敲擊 工具、一收音裝置與一分析裝置，用於檢測存於密閉容 器内之一儲存物的容量大小。敲擊工具用於敲擊密閉容 器而產生一聲音訊號，收音裝置收集密閉容器震動時產 生的聲音訊號，由於容器震動時所產生的聲音訊號會受 到内部儲物存量的影響，經由分析裝置接收聲音訊號後 分析聲音訊號變化情形，我們可以獲得密閉容器内儲存 物的存量大小。如此可更容易的測得密閉容器裡面之儲 存物的存量。 表單編號A0101 第5頁/共16頁 M382483 此外，本創作之密閉容器儲物存量之檢測裝置更包含 一顯示裝置，以顯示分析裝置求得之密閉容器所儲存之 儲存物的存量大小。 【實施方式】 [0004] 茲為使貴審查委員對本創作之技術特徵及所達成之 功效更有進一步之瞭解與認識，謹佐以較佳之實施例圖 及配合詳細之說明，說明如後： 首先，請一併參閱第一圖與第二圖，係為本創作密閉 容器儲物存量之檢測裝置之一較佳實施例的示意圖與存 量與頻率之曲線圖。如圖所示，本創作密閉容器之檢測 裝置包含一敲擊工具11、一收音裝置1>3、一.分析裝置15 ， * ^ 與一密閉容器17。敲擊工具1„1用以敲聲密閉容器17，使 · ' " ‘ ，，v.，1 得密閉容器17產生一個聲音訊號，且密閉容器17中具有 儲存物，收音裝置13收集敲擊工具11敲擊密閉容器17所 產生的聲音訊號，分析裝置15揍收收音裝置13所收集的 聲音訊號，並且分析聲音訊號的頻率以求得密閉容器17 裡儲存物之存量大小。此實施例之分析1裝置15為一電腦 ，此時實施例為本創作之一較佳實施例*但本創作之分 析裝置並不侷限於電腦，此外本創作之分析裝置15之其 他較佳實施例可為一微處理器、一可攜式行動裝置、一 數位電路或一類比電路。本創作之收音裝置13之一較佳 實施例為一麥克風或一音頻檢測裝置，而敲擊工具11之 一較佳實施例為一鐵鎚或一木槌。 此外，本創作密閉容器儲物存量之檢測裝置更包含一 ♦ 顯示裝置16，以顯示分析裝置15所求得的密閉容器17所 表單編號A0101 第6頁/共16頁 存之儲存物的存量大小，以供檢測人員得知存量大小， 本創作之顯示裝置之一較佳實施例為一液晶顯示器。另 外，本創作之分析裝置15更可藉由無線傳輸方式，而傳 輸分析裝置15所求得的密閉容器17所存之儲存物的存量 大小至指定之接收裝置，以達到自動通報之目的，而方 便遠端控管物料。 由於，密閉容器17所存有之儲存物越多，即物位越高 ，而敲擊工具11敲擊密閉容器17之外壁時，密閉容器17 受到内部儲物附著其表面的慣性影響，使得器壁震動時 有較大的質量密度，不容易產生高頻振動，因此當密閉 容器17存有較多的儲物時，產生之聲青訊號的頻率較低 。相對而言，存於密閉容器17之;儲存物越少，即物位越 低時，敲擊工具11敲擊密閉容器17之外壁，密閉容器17 因未受到儲物附著其表面的影響，只有器壁本身的質量 ，有較小的質量密度而容易產生高頻率的振動，因此密 閉容器17所產生之聲音訊號相對於前述储物存量較多時 會有較高的頻率產生。利用上述原理，經由分析容器震 動時所產生的聲音訊號，即可檢測存於密閉容器17内部 之儲存物的存量大小。以下係詳細說明本創作之檢測裝 置的檢測方式。 本創作之檢測裝置先測量一個已知儲存物之容量的密 閉容器17，以建立一對照表，此對照表用於紀錄存於密 閉容器17内之儲存物的各種存量變化與各種聲音訊號之 頻率變化的對應關係，以供分析裝置15作為分析聲音訊 號檢測儲存物之存量大小的依據。本實施例之密閉容器 17為瓦斯鋼瓶，本實施例係應用於量測瓦斯鋼瓶内之瓦 表單編號A0101 第7頁/共16頁 M382483 斯的存量，但本創作不僅限於此實施例，亦即亦能用於 量測其他密閉容器内儲物的存量大小。本實施例建立對 照表之方式，首先先將瓦斯鋼瓶放置電子秤上量測重量 ，紀錄瓦斯鋼瓶的貪際重量數值，且為了使瓦斯鋼瓶重 量產生變化，乃控制每次釋放定量的瓦斯氣體，作為對 照數據之重量間距，釋放一定量之瓦斯氣體後，關緊瓦 斯鋼瓶之出氣口，待瓦斯鋼瓶穩定後再進行秤重量測。 完成不同瓦斯存量的重量量測後，將該存量的重量減去 瓦斯鋼瓶淨重，即可得知存於瓦斯鋼瓶内之瓦斯的存量 〇 測量不同瓦斯存量重量的同時，我們對鋼瓶進行敲擊 使其震動產生聲音，對該聲音做r頻譜.分析，用以建立出 • ·» ·, ^ . 不同瓦斯存量與鋼瓶震動產·生聲頻率的嘴係曲線。也 就是利用敲擊工具11敲打在瓦斯鋼瓶外壁的選定位置上 ，並且經由收音裝置13收音，將收音所得的聲音訊號作 音訊處理（即分析聲音訊號之頻率）。本創作可利用類比 電路或數位電路來分析聲音訊號i頻率，如此即可得知 儲存物之存量與聲音訊號之被;率;的對應關係，而建立如 第二圖所示之存量與頻率之相對應的曲線圖。 每一個瓦斯存量（X軸）均對應一種聲音訊號頻率， 將該瓦斯存量下鋼瓶產生聲音的做頻譜分析，取出頻譜 強度值最大值所對應的的頻率或頻譜強度值中頻率最低 的基礎頻率標記下來作為Y轴，即可建立如第二圖所示之 存量與頻率的曲線圖。依據所建立之對照表，即如第二 圖所示之存量與頻率之曲線圖，即可得知各種聲音訊號 之頻率與儲存物的存量大小之間的相互關係。如第二圖 表單編號A0101 第8頁/共16頁 «存於瓦斯鋼瓶之瓦斯的存量逐漸降低時，敲擊 之斯7瓶所產生之聲音訊號的頻率會逐漸提高。簡而言 $瓦斯鋼瓶内之瓦斯的存量高時其所對應之聲音 號的頻率則較低’反之，當瓦斯鋼瓶内之瓦斯的存量 争乂少時，所料麻 析穿 ’、吓對應之聲音訊號的頻率則較高。因此，分 土 。15即可依據此對照表與敲擊瓦斯鋼瓶所產生之聲 δ號可測得瓦斯鋼瓶所裝 的瓦斯之容量大小》 旦°月參閱第三人圖與第三Β圖，係本創作密閉容器儲物存 里^檢測裝置敲擊密閉容器的振動示意圖。由理論可知 17^擊&閉4器17時發出的聲音，主因是由於密閉容器 。壁振動所產生’器壁姨的波形可以經由邊界條 半=局部負重彈性棒震動理論計(算而界。如第三Α圖所示 “田敲擊密閉容器j 7之中段部份時，'剛瓶番出聲音的頻 率變化’相當於激發鋼瓶以上焊接線與下焊接線作為兩 固定端所產生的第—諧音振純式下所產生的聲音，如 A圖所示，敲擊工具η;敲擊#也置正好是該振動波形 的波腹。此外，如第三Β圖所示，敲擊密閉容器1 7外壁上 方與底。Ρ附近位置則是接近在第二错音振動波形接近波 腹的位置’激發第二諸音的同時也容易激發出非駐波形 式的振動雜m。因此本創作《較佳實施例是敲擊密閉容 器17之中段部分所激發第一諧音振動模式產生之聲音訊 號，進行存量檢測較為精確，可提高檢測的精確度。 表單奂號A0101 請參閱第四圖，係為本創作密閉容器儲物存量之檢測 裝置之另一較佳實施例的示意圖。如圖所示，此實施例 不同於第一圖之實施例在於，此實施例包含一警示單元 18，其耦接該分析裝置15，分析裝置15預設有一存量預 第9頁/共16頁 kfe AA. M382483 設值，當密閉容器17中的儲存物之存量小於或等於存量 預設值時，分析裝置15則會產生控制訊號至警示裝置18 ，警示裝置18即會依據控制訊號產生一警示訊號，以通 知監控者儲存物之存量接近於存量預設值。本創作之警 示裝置18之一較佳實施例可為一蜂鳴器或一警示燈，而 警示訊號即為蜂鳴器所產生的一警示聲音或警示燈所發 出之一警示燈號。 請參閱第五圖，係為本創作密閉容器儲物存量之檢測 裝置之另一較佳實施例的示意圖。如圖所示，此實施例 不同於第一圖實施例在於，此實施例之一敲擊工具為一 自動敲擊單元19，且自動敲擊單:元19連接於分析裝置15 ，分析裝置1 5會於一預定時間控喇 '“敲擊單元19敲擊 密閉容器17。此外，使用者可自行設定'iife敲擊單元19 之敲擊時間，自動敲擊單元19會依據使用者所設定之時 間而敲擊密閉容器17。 綜上所述，本創作密閉容器楗物存量(¾檢測裝置主要 包含有敲擊工具、收音裝置以及分析故置，敲擊工具敲 擊密閉容器使得密閉容器產生一個聲音訊號，且密閉容 器存有一儲存物，收音裝置接收密閉容器所產生的聲音 訊號，並將聲音訊號傳送至分析裝置作分析，進而求得 密閉容器裡所裝的儲存物存量的大小，如此，可更容易 測得存於密閉容器裡面之儲存物的存量。 故本創作實為一具有新穎性、進步性及可供產業上利用 者，應符合我國專利法專利申請要件無疑，爰依法提出 新型專利申請，祈鈞局早曰賜准專利，至感為禱。 惟以上所述者，僅為本創作一較佳實施例而已，並非 表單編號A0101 第10頁/共16頁 M382483 用來限定本創作實施之範圍，故舉凡依本創作申請專利 範圍所述之形狀、構造、特徵及精神所為之均等變化與 修飾，均應包括於本創作之申請專利範圍内。 【圖式簡單說明】 [0005] 第一圖係本創作密閉容器儲物存量之檢測裝置之一較佳 實施例的示意圖； 第二圖係本創作密閉容器儲物存量之檢測裝置之一較佳 實施例的存量與頻率的曲線圖； 第三A圖係本創作密閉容器儲物存量之檢測裝置敲擊密閉 容器的振動示意圖； 第三B圖係本創作密閉容器儲物存量之檢測裝置之敲擊密 閉容器的另一振動示意圖； 第四圖係本創作密閉容器儲物存量之檢測裝置之另一較 佳實施例的示意圖；以及 第五圖係本創作密閉容器儲物存量之檢測裝置之另一較 佳實施例的示意圖。 【主要元件符號說明】 [0006] 11 敲擊工具 13 收音裝置 15 分析裝置 16 顯示裝置 17 密閉容器 18警示單元 19自動敲擊單元 表單編號A0101 第11頁/共16頁Materials such as fuels, high pressure liquid gases or hazardous liquid chemical solutions. In order to effectively control materials, the industry must detect the stock of stored materials in the container. Therefore, the level detection plays an important role in the modern industrial production process. The level of the measured medium in the container can be determined by the level detection to provide materials. Management depends. If the container is a liquid medium, the level of the liquid medium is called the liquid level. The level of the interface of the two liquid medium is called the interface. The stacking height of the solid block and the granular material is called the material. Bit, while liquid level, interface and material level are collectively referred to as level. The meter used to detect the liquid level is called the level gauge, the meter for measuring the interface is called the interface meter, and the meter for measuring the solid level is called the level gauge. In actual production, the level detection has liquid level and material level, and the container has a large container of several tens of meters in height, and there are also several millimeters of micro-container. The qualitative characteristics are very different. Therefore, there are many methods for level detection. To adapt to a variety of different testing requirements. The most common and most intuitive level detection is the direct reading method, which opens some windows on the container for observation. For liquid level detection, a glass tube or glass plate connected to the container to be tested can be used to indicate the liquidity in the container. This method is reliable and accurate, but it can only be used when the pressure of the container is not high, and only the object to be inspected on site is required. In addition to the third page / a total of 16 pages form number Α 0101, the current commonly used level detection methods can be divided into the following: static pressure level detection, buoyancy level detection, electrical level detection, ray type Level detection, acoustic level detection, weight level detection, etc. Among these detection methods, the acoustic level detection has the best effect, and the advantage is that the detection element can not be in contact with the liquid to be tested, and thus is suitable for measuring the liquid level of strong corrosion, high pressure, toxic and high viscosity. In addition, it is not afraid of smoke and light, is not subject to electromagnetic interference, can measure the liquid level of various liquids and the granular solid material level, and can also be used to measure two liquid interfaces, liquid level difference, material level difference and the like. This type of measurement is very common and is used today for seawater depth measurements. The principle of acoustic level detection is simple. For example, in the process of pouring water into the water cup, you can hear that there are two changes in the @ rate, that is, the correlation between the air column and the water column is known. The wavelength λ (column height) is inversely proportional to the frequency f. When the water column height is higher, the medium conducts higher frequency, and vice versa. In the process of injecting water into the container, the water column gradually rises, and the air charge rate is higher and higher. For example, the mainland's patent application number 2 0 0 81 0 0 7- 0 715 reservoir tank liquid level alarm is achieved by using this principle. In addition, there is another ultrasonic detection, which uses the method of ranging to detect the ultrasonic wave of the object to be measured, and records the time (t) required for the ultrasonic wave to bounce back and forth, using time (t) and The velocity (V) formula H = vt/2, the position of the level (H) can be calculated. The principle of the above-mentioned acoustic level detection is not affected by the material and thickness of the container itself when the sensing element (such as a microphone or an ultrasonic transmitter, etc.) can be placed in the container, if the interior of the container is subjected to high pressure or chemical reaction. When the sensor cannot be placed in the sensor, the sound wave penetrates the container and is often limited by the thickness of the container material form number A0101, which makes the signal obtained by the reflection weak and unrecognizable, so that there are certain restrictions on the use. From the above, it can be seen that there is no way to apply the methods of detection to various containers, and there are conditions and limitations in their use. Therefore, it is still a major issue to find out the detection method and device for the stock of storage in a new closed container. This creation proposes a new detection method and device for the closed container for the above problems, and provides a new device suitable for not easily placing the detection instrument in the container or the sound wave of the container is too thick to penetrate the detection, which is easy and accurate. The stock of the stock in the container is measured to solve the above problem. [New Content] [0003] One of the purposes of the present invention is to provide a detecting device for a closed container storage stock, which is obtained by analyzing a sound signal generated by a tapping tool in a closed container to obtain a stored object in the closed container. With the size of the stock, the stock of the contents of the closed container can be more easily measured by the detection device of the present invention. The present invention relates to a detection device for a closed container storage stock, which comprises a tapping tool, a sound collecting device and an analyzing device for detecting the capacity of a storage stored in the closed container. The tapping tool is used to strike the closed container to generate an audio signal, and the sound collecting device collects the sound signal generated when the sealed container vibrates. The sound signal generated when the container vibrates is affected by the internal storage stock, and the sound is received through the analyzing device. After analyzing the signal changes after the signal, we can obtain the stock of the storage in the closed container. This makes it easier to measure the stock of storage in a closed container. Form No. A0101 Page 5 of 16 M382483 In addition, the apparatus for detecting the storage of closed containers of the present invention further comprises a display device for displaying the stock of stocks stored in the closed container obtained by the analyzing device. [Embodiment] [0004] In order to give your reviewers a better understanding and understanding of the technical features of the creation and the efficacies achieved, please refer to the preferred embodiment diagram and the detailed description to illustrate the following: Please refer to the first figure and the second figure together, which is a schematic diagram of a preferred embodiment of a device for detecting the storage of closed containers, and a graph of stock and frequency. As shown in the figure, the detecting device for the present closed container comprises a tapping tool 11, a sound collecting device 1 > 3, an analyzing device 15, * ^ and a sealed container 17. The tapping tool 1 „1 is used to knock the closed container 17 so that the sealed container 17 produces an audio signal, and the sealed container 17 has a stored object, and the sound collecting device 13 collects the tapping. The tool 11 strikes the sound signal generated by the sealed container 17, and the analyzing device 15 picks up the sound signal collected by the sound collecting device 13, and analyzes the frequency of the sound signal to obtain the stock amount of the stored matter in the sealed container 17. This embodiment The analysis device 15 is a computer. The embodiment is a preferred embodiment of the present invention. However, the analysis device of the present invention is not limited to a computer, and the other preferred embodiment of the analysis device 15 of the present invention may be A microprocessor, a portable mobile device, a digital circuit or a analog circuit. A preferred embodiment of the present audio device 13 is a microphone or an audio detecting device, and one of the tapping tools 11 is preferably implemented. For example, the detection device for the sealed container storage stock further includes a display device 16 for displaying the form number A0 of the closed container 17 obtained by the analysis device 15. 101 Page 6 of 16 The stock of stocks stored for the tester to know the size of the stock, a preferred embodiment of the display device of the present invention is a liquid crystal display. In addition, the analysis device 15 of the present invention is further The amount of the stored stock of the sealed container 17 obtained by the analyzing device 15 can be transmitted to the designated receiving device by the wireless transmission method to achieve the purpose of automatic notification, thereby facilitating the remote control of the material. The more the storage material is stored in the container 17, that is, the higher the level, and the knocking tool 11 hits the outer wall of the closed container 17, the closed container 17 is affected by the inertia of the internal storage attached to the surface, so that the wall is vibrated. Larger mass density, it is not easy to generate high-frequency vibration, so when there is more storage in the closed container 17, the frequency of the sound signal is lower. Relatively speaking, it is stored in the closed container 17; The less the level is, the lower the level is, the tapping tool 11 strikes the outer wall of the closed container 17, and the closed container 17 is affected by the surface of the closed container, and only the mass of the wall itself has a small quality. The density is easy to generate high-frequency vibration, so that the sound signal generated by the sealed container 17 is generated at a higher frequency than when the stored stock is large. By using the above principle, the sound signal generated by analyzing the vibration of the container is The stock amount of the stored material stored in the sealed container 17 can be detected. The following describes the detection method of the detecting device of the present invention in detail. The detecting device of the present invention first measures a sealed container 17 of a known storage capacity to establish a comparison table for recording the correspondence between the various stock changes of the stored items stored in the sealed container 17 and the frequency changes of the various sound signals for the analysis device 15 to analyze the stock of the storage of the sound signals. According to the present embodiment, the sealed container 17 is a gas cylinder, and the embodiment is applied to measure the stock of the tile form number A0101 in the gas cylinder, and the present invention is not limited to this embodiment. It can also be used to measure the stock of storage in other closed containers. In the embodiment, the method of establishing the comparison table firstly places the gas cylinder on the electronic scale to measure the weight, records the greedy weight value of the gas cylinder, and controls the gas gas to be released every time in order to change the weight of the gas cylinder. As the weight spacing of the control data, after releasing a certain amount of gas, close the gas outlet of the gas cylinder, and then measure the weight of the gas cylinder after the gas cylinder is stable. After the weight measurement of different gas stocks is completed, the weight of the stock is subtracted from the net weight of the gas cylinder, and the stock of gas stored in the gas cylinder can be known. 〇 measure the weight of different gas stocks, and we tap the cylinder so that The vibration produces a sound, and the sound is analyzed by r spectrum. It is used to establish the mouth curve of different gas storage and cylinder vibration production and sound frequency. That is, the tapping tool 11 is used to tap the selected position on the outer wall of the gas cylinder, and the sound is collected by the sound pickup device 13, and the sound signal obtained by the sound is processed (i.e., the frequency of the sound signal is analyzed). This creation can use an analog circuit or a digital circuit to analyze the frequency of the sound signal i, so that the corresponding relationship between the stock of the stored matter and the sound signal can be known, and the stock and frequency as shown in the second figure can be established. Corresponding graph. Each gas inventory (X-axis) corresponds to a sound signal frequency, and the sound spectrum of the cylinder is generated by the gas inventory, and the frequency corresponding to the maximum value of the spectral intensity value or the lowest frequency base frequency mark of the spectral intensity value is taken out. As a Y-axis, a graph of the stock and frequency as shown in the second figure can be established. According to the established comparison table, that is, the graph of stock and frequency as shown in the second figure, the relationship between the frequency of various sound signals and the stock size of the stock can be known. As shown in the second figure Form No. A0101 Page 8 of 16 When the stock of gas stored in gas cylinders is gradually reduced, the frequency of the sound signals generated by the 7 bottles of tapping will gradually increase. In short, when the stock of gas in the gas cylinder is high, the frequency of the corresponding sound number is lower. On the contrary, when the stock of gas in the gas cylinder is less disputed, the material is expected to wear, and the corresponding The frequency of the sound signal is higher. Therefore, divide the soil. 15 According to the comparison table and the sound δ number generated by the knocking gas cylinder, the volume of gas installed in the gas cylinder can be measured. The third person and the third map are referred to as the sealed container of the present invention. The vibration of the sealed container is detected by the detecting device. It is known from the theory that the sound produced by the closing and closing of the device is due to the closed container. The waveform of the wall of the wall generated by the wall vibration can be calculated by the boundary strip half = partial load-weight elastic rod vibration theory (calculated as the third figure, "When the field hits the middle part of the closed container j 7," The frequency change of the sound of the just bottle is equivalent to the sound produced by the first harmonic wave pure type generated by the above welding line and the lower welding line as the two fixed ends, as shown in Figure A, the tapping tool η; The tap # is also set to the antinode of the vibration waveform. Further, as shown in the third diagram, the outer wall and the bottom of the closed container 17 are tapped. The position near the Ρ is close to the wave in the second dynamometer vibration waveform. The position of the abdomen 'excitation of the second tones is also easy to excite the vibration m in the form of non-standing waves. Therefore, the preferred embodiment of the present invention is that the first harmonic vibration mode excited by the middle portion of the knocking container 17 is generated. Sound signal, accurate inventory detection, can improve the accuracy of detection. Form nickname A0101 Please refer to the fourth figure, which is a schematic diagram of another preferred embodiment of the device for detecting the storage of the closed container storage. Shown This embodiment is different from the embodiment of the first figure in that the embodiment includes a warning unit 18 coupled to the analysis device 15, and the analysis device 15 presets a stock pre-page 9/16 pages kfe AA. M382483 The value of the storage device in the closed container 17 is less than or equal to the stored value preset value, the analyzing device 15 generates a control signal to the warning device 18, and the warning device 18 generates a warning signal according to the control signal to notify the monitoring. The storage of the storage device is close to the preset value of the inventory. A preferred embodiment of the warning device 18 of the present invention may be a buzzer or a warning light, and the warning signal is a warning sound generated by the buzzer or A warning light is issued by the warning light. Please refer to the fifth figure, which is a schematic diagram of another preferred embodiment of the detecting device for storing the storage of the closed container. As shown, this embodiment is different from the first embodiment. The embodiment of the figure is that one of the tapping tools of this embodiment is an automatic tapping unit 19, and the automatic tapping list: the element 19 is connected to the analyzing device 15, and the analyzing device 15 is controlled by a predetermined time. Unit 19 The sealed container 17 is tapped. In addition, the user can set the tapping time of the 'iife tapping unit 19, and the automatic tapping unit 19 taps the sealed container 17 according to the time set by the user. Creating a closed container stock (3⁄4 detection device mainly includes a tapping tool, a sounding device, and an analysis device, the tapping tool hits the closed container to make the sealed container generate an audio signal, and the sealed container stores a stored object, and the receiving device receives The sound signal generated by the closed container is transmitted to the analysis device for analysis, thereby obtaining the stock amount of the stored matter in the closed container, so that the storage stored in the closed container can be more easily measured. Therefore, the creation is a novelty, progressive and available for industrial use. It should be in accordance with the requirements of patent applications in China's patent law. It is undoubtedly a new type of patent application, and the Prayer Council will grant patents as soon as possible. For prayer. However, the above description is only a preferred embodiment of the present invention, and is not the form number A0101, page 10/16 pages, M382483, which is used to limit the scope of the present invention, and therefore the shape described in the scope of the patent application. Equivalent changes and modifications to the structure, characteristics and spirits are to be included in the scope of the patent application for this creation. BRIEF DESCRIPTION OF THE DRAWINGS [0005] The first figure is a schematic diagram of a preferred embodiment of the present invention for detecting a stock of closed container storage; the second figure is preferably one of the detecting devices for the storage of the sealed container storage. The graph of the stock and frequency of the embodiment; the third graph is a schematic diagram of the vibration of the detecting device of the closed container storage stock, and the vibration of the sealed container; the third B is the knocking of the detecting device for the storage of the closed container storage A schematic diagram of another vibration of the sealed container; the fourth figure is a schematic view of another preferred embodiment of the detecting device for storing the sealed container storage; and the fifth drawing is another detecting device for the storage of the sealed container storage A schematic diagram of a preferred embodiment. [Main component symbol description] [0006] 11 Tap tool 13 Sound pickup device 15 Analysis device 16 Display device 17 Closed container 18 Warning unit 19 Automatic tap unit Form No. A0101 Page 11 of 16