TW201441625A - Acceleration sensor with gravity measuring function - Google Patents
Acceleration sensor with gravity measuring function Download PDFInfo
- Publication number
- TW201441625A TW201441625A TW102113886A TW102113886A TW201441625A TW 201441625 A TW201441625 A TW 201441625A TW 102113886 A TW102113886 A TW 102113886A TW 102113886 A TW102113886 A TW 102113886A TW 201441625 A TW201441625 A TW 201441625A
- Authority
- TW
- Taiwan
- Prior art keywords
- metal ball
- light
- sensing device
- acceleration sensing
- module
- Prior art date
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
本發明是關於一種加速度感測裝置,特別是指一種具有電磁模組的加速度感測裝置。The invention relates to an acceleration sensing device, in particular to an acceleration sensing device with an electromagnetic module.
按,一般加速度感測裝置依其種類可分為壓電式、壓阻式、電容式、及磁阻式加速度計,其中又以壓電式加速度計為較常被大眾使用於振動量測分析上,然採用壓電感測器所研製而成的加速度計需以壓電材料作為加速度感測器,導致成本較為昂貴。例如中華民國專利號碼第419839號的『振動量測裝置及其方法』中揭示一振動量測裝置及其方法,其包括一感應本體及一壓電感應層,該壓電感應層係以一均佈模態來形成,於實際應用上選擇一特定頻寬進行加速度之檢測,該『振動量測裝置及其方法』需以壓電材料作為加速度感測器,導致成本較為昂貴。According to its type, general acceleration sensing devices can be divided into piezoelectric, piezoresistive, capacitive, and magnetoresistive accelerometers. Among them, piezoelectric accelerometers are commonly used by the public for vibration measurement analysis. On the other hand, the accelerometer developed by the piezoelectric detector needs to use piezoelectric material as the acceleration sensor, which leads to higher cost. For example, in the "Vibration measuring device and method thereof" of the Republic of China Patent No. 419839, a vibration measuring device and a method thereof include an inductive body and a piezoelectric sensing layer, the piezoelectric sensing layer being The cloth mode is formed, and a specific bandwidth is selected for the acceleration detection in practical applications. The "vibration measuring device and the method thereof" need to use a piezoelectric material as an acceleration sensor, resulting in a relatively expensive cost.
另外,也有使用光學的感測裝置來製作加速度感測器,其主要技術是採用偵測光功率之方式來完成,例如美國專利編號Pat.No.4,592,235的光學式加速度感測器( Optical accelerometer )是揭露將一懸臂樑末端支承的葉片置放於LED與光阻感測器之間,當受到加速度產生的外力時,懸臂樑末端的葉片將會產生擺動現象,進而阻斷LED光源射向光阻感測器的光量,經由該光阻感測器接收到的光功率,即可求得所對應的加速度值,然由於該光學式加速度計( Optical accelerometer )採用LED光的能量穩定度不高,所以容易造成該光阻感測器所接收的光功率產生飄移現象,故無法應用於精密測量上,並且該光學式加速度計( Optical accelerometer )內部得元件(葉片)龐大,造成光學式加速度計( Optical accelerometer )本身也需要很大的容置空間,導致攜帶使用上較為不便。In addition, there is also an optical accelerometer that uses an optical sensing device to produce an accelerometer. The main technique is to detect the optical power. For example, the optical accelerometer of the US Pat. No. 4,592,235. It is disclosed that the blade supported by the end of a cantilever beam is placed between the LED and the photoresist sensor. When an external force generated by the acceleration is applied, the blade at the end of the cantilever beam will oscillate, thereby blocking the LED light source from being directed to the light. The amount of light of the sensor is obtained by the optical power received by the photoresist sensor, and the corresponding acceleration value is obtained, but the energy stability of the LED light is not high due to the optical accelerometer Therefore, it is easy to cause the optical power received by the photoresist sensor to drift, so it cannot be applied to precision measurement, and the optical accelerometer has a large internal component (blade), resulting in an optical accelerometer. (Optical accelerometer) itself also requires a large accommodation space, which makes it more inconvenient to carry.
另外,上述所提到的加速度感測器無法測量或無法直接測量重力,當使用在航太設備時其在應用上會有所侷限。In addition, the above mentioned acceleration sensor cannot measure or can not directly measure gravity, and its application will be limited when used in aerospace equipment.
因此,如何提供一種加速度感測裝置,讓加速度感測裝置本身有較小的體積和提高測量的精確度,便是值得本領域具有通常知識者去思量地。Therefore, how to provide an acceleration sensing device, which allows the acceleration sensing device itself to have a small volume and improve the accuracy of measurement, is worthy of consideration by those of ordinary skill in the art.
本發明之目的是提供一種加速度感測裝置,加速度感測裝置包括一矩形殼體、一金屬球、多個電磁模組、多個投光陣列和多個受光陣列。金屬球位於該矩形殼體的內部之中央位置,電磁模組是設置在矩形殼體的內側壁面,投光陣列和受光陣列是設置在矩形殼體的內側壁面,且位於電磁模組與金屬球之間,受光陣列與該投光陣列是彼此相對。其中,金屬球是藉由電磁模組所施加的一磁力而保持在矩形殼體的內部之中央位置,且當金屬球離開矩形殼體的內部之中央位置後,電磁模組會調整磁力以使金屬球回到矩形殼體的內部之中央位置。It is an object of the present invention to provide an acceleration sensing device that includes a rectangular housing, a metal ball, a plurality of electromagnetic modules, a plurality of light projecting arrays, and a plurality of light receiving arrays. The metal ball is located at a central position inside the rectangular casing, and the electromagnetic module is disposed on the inner wall surface of the rectangular casing. The light projecting array and the light receiving array are disposed on the inner wall surface of the rectangular casing, and are located at the electromagnetic module and the metal ball. Between the light receiving array and the light projecting array are opposed to each other. Wherein, the metal ball is held in the center of the interior of the rectangular casing by a magnetic force applied by the electromagnetic module, and after the metal ball leaves the central position of the interior of the rectangular casing, the electromagnetic module adjusts the magnetic force so that The metal ball returns to the center of the interior of the rectangular housing.
於上所述之加速度感測裝置,其中投光陣列包括多個投光器,受光陣列包括多個受光器,投光器具有一相對應的受光器,投光器發出光線時,相對應的受光器會立即偵測到,受光陣列感測到該金屬球的位置資訊。The acceleration sensing device described above, wherein the light projecting array comprises a plurality of light projectors, the light receiving array comprises a plurality of light receptors, and the light projector has a corresponding light receiver, and the corresponding light receptors are detected immediately when the light projector emits light. The light receiving array senses the position information of the metal ball.
於上所述之加速度感測裝置,其中投光器所發射出的光線為雷射光。In the acceleration sensing device described above, the light emitted by the light projector is laser light.
於上所述之加速度感測裝置,還包括一數據偵測模組,數據偵測模組包括一距離計算模組、一計時器,距離計算模組接收該金屬球的位置資訊,並產生一位置點的數據資料。當距離計算模組接收到該金屬球的位置資訊時,計時器會產生一個時間點,並將時間點給記錄下來產生一時間點的數據資料。其中,藉由距離計算模組和計時器產生的該數據資料便算出金屬球所移動的瞬間加速度。The acceleration sensing device further includes a data detection module, the data detection module includes a distance calculation module, a timer, and the distance calculation module receives the position information of the metal ball, and generates a The data of the location point. When the distance calculation module receives the position information of the metal ball, the timer generates a time point, and records the time point to generate data data of a time point. The data generated by the distance calculation module and the timer calculates the instantaneous acceleration of the movement of the metal ball.
於上所述之加速度感測裝置,數據偵測模組還包括一電流強度感測器,電磁模組的電流量產生變化時,電流強度感測器將電流變化的大小紀錄下來,並產生一電流量的數據資料。In the acceleration sensing device described above, the data detection module further includes a current intensity sensor. When the current quantity of the electromagnetic module changes, the current intensity sensor records the magnitude of the current change, and generates a Data flow of electricity flow.
於上所述之加速度感測裝置,數據偵測模組還包括一顯示螢幕,顯示螢幕顯示距離計算模組、計時器,和電流強度感測器的數據資料。In the acceleration sensing device described above, the data detection module further includes a display screen for displaying data of the distance display calculation module, the timer, and the current intensity sensor.
10...加速度感測裝置10. . . Acceleration sensing device
101...主體101. . . main body
101A...充電孔101A. . . Charging hole
102...數據偵測模組102. . . Data detection module
1021...顯示螢幕1021. . . Display screen
1022...計時器1022. . . Timer
1023...距離計算模組1023. . . Distance calculation module
1024...電流強度感測器1024. . . Current intensity sensor
12...金屬球12. . . Metal ball
13...電磁模組13. . . Electromagnetic module
131...第一電磁模組131. . . First electromagnetic module
132...第二電磁模組132. . . Second electromagnetic module
133...第三電磁模組133. . . Third electromagnetic module
134...第四電磁模組134. . . Fourth electromagnetic module
135...第五電磁模組135. . . Fifth electromagnetic module
136...第六電磁模組136. . . Sixth electromagnetic module
14...投光陣列14. . . Projection array
141...第一投光陣列141. . . First light projecting array
141a...投光器141a. . . Projector
142...第二投光陣列142. . . Second projection array
143...第三投光陣列143. . . Third projection array
15...受光陣列15. . . Light receiving array
151a...受光器151a. . . Receiver
151...第一受光陣列151. . . First light receiving array
152...第二受光陣列152. . . Second light receiving array
153...第三受光陣列153. . . Third light receiving array
X1、X2...金屬球位置X1, X2. . . Metal ball position
t1、t2...時間點T1, t2. . . Time point
M1...磁力M1. . . magnetic force
F1...重力F1. . . gravity
L1、L2...金屬球位置L1, L2. . . Metal ball position
Lt1、Lt2...時間點Lt1, Lt2. . . Time point
A2...瞬間加速度A2. . . Instantaneous acceleration
圖1所繪示為本實施例之加速度感測裝置。FIG. 1 illustrates an acceleration sensing device of the present embodiment.
圖2所繪示為加速度感測裝置10的主體101的A-A剖視圖。2 is a cross-sectional view of the main body 101 of the acceleration sensing device 10 taken along line A-A.
圖3所繪示為加速度感測裝置10的主體101的B-B剖視圖。FIG. 3 is a cross-sectional view taken along line B-B of the main body 101 of the acceleration sensing device 10.
圖4所繪示為第一投光陣列141和第一受光陣列151的立體圖。4 is a perspective view of the first light projecting array 141 and the first light receiving array 151.
圖5所繪示為第一受光陣列151偵測金屬球12所在位置的示意圖。FIG. 5 is a schematic diagram showing the position of the first light receiving array 151 detecting the metal ball 12 .
圖6所繪示為加速度感測裝置10的主體101的A-A剖視圖。FIG. 6 is a cross-sectional view of the main body 101 of the acceleration sensing device 10 taken along line A-A.
圖7所繪示為金屬球12的受力方向示意圖。FIG. 7 is a schematic view showing the direction of force of the metal ball 12.
圖8至圖10所繪示為本實施力之加速度感測裝置10應用在測量加速度時的剖視圖。8 to 10 are cross-sectional views showing the acceleration sensing device 10 of the present embodiment applied to measure acceleration.
請參閱圖1,圖1所繪示為本實施例之加速度感測裝置10。加速度感測裝置10包括一主體101與一數據偵測模組102所構成,主體101的外形為一矩形殼體,在主體101的其中一面有一充電孔101A,充電孔101A可連接外部電源來提供主體101與數據偵測模組102所需的電力。在較佳的實施例中,主體101為一長寬高都為10mm的矩形殼體,其體積所佔據的空間不大。在本實施例中,主體101為立方形殼體,但主體101的形狀並不限於立方形殼體,只要為矩形殼體即可。另外,數據偵測模組具有一顯示螢幕1021、一計時器1022、一距離計算模組1023和一電流強度感測器1024,顯示螢幕1021主要顯示計時器1022、距離計算模組1023和電流強度感測器1024所產生的數據資料。Please refer to FIG. 1. FIG. 1 illustrates the acceleration sensing device 10 of the present embodiment. The acceleration sensing device 10 includes a main body 101 and a data detecting module 102. The main body 101 has a rectangular casing. The main body 101 has a charging hole 101A on one side thereof, and the charging hole 101A can be connected to an external power source to provide The power required by the main body 101 and the data detecting module 102. In a preferred embodiment, the body 101 is a rectangular housing having a length, width and height of 10 mm, and the volume occupied by the volume is not large. In the present embodiment, the main body 101 is a cuboidal casing, but the shape of the main body 101 is not limited to a cuboidal casing, and may be a rectangular casing. In addition, the data detection module has a display screen 1021, a timer 1022, a distance calculation module 1023, and a current intensity sensor 1024. The display screen 1021 mainly displays a timer 1022, a distance calculation module 1023, and a current intensity. The data generated by the sensor 1024.
請參閱圖2和圖3,圖2為加速度感測裝置10的主體101的A-A剖視圖,圖3為加速度感測裝置10的主體101的B-B剖視圖。加速度感測裝置10之主體101內部包括至少一金屬球12、多個電磁模組13、多個投光陣列14、和多個受光陣列15。而電磁模組13是頂靠著主體101的四周內壁,電磁模組13包括第一電磁模組131、第二電磁模組132、第三電磁模組133、第四電磁模組134、第五電磁模組135、和第六電磁模組136,電磁模組13是藉由外部的電力來產生磁力吸引金屬球12,當電磁模組的電流量產生變化時,電流強度感測器1024會將電流變化的大小紀錄下來,並產生一電流量的數據資料。此外,投光陣列14包括第一投光陣列141、第二投光陣列142和第三投光陣列143,而受光陣列15則包括第一受光陣列151、第二受光陣列152和第三受光陣列153。由圖2和圖3的剖視圖可看出,投光陣列14和受光陣列15位於該電磁模組13與金屬球12之間。在本實施例中,金屬球12的材質是由鐵所構成,但金屬球12的材質並不限於鐵,也可以是由其他可被磁力所吸引的物質所構成。另外,在電磁模組13外側還可設置有一金屬外壁16,此金屬外壁16可發揮金屬屏蔽的功效,以免電磁模組13受到外界電磁波的影響。2 and FIG. 3, FIG. 2 is a cross-sectional view taken along line A-A of the main body 101 of the acceleration sensing device 10, and FIG. 3 is a cross-sectional view taken along line B-B of the main body 101 of the acceleration sensing device 10. The main body 101 of the acceleration sensing device 10 includes at least one metal ball 12, a plurality of electromagnetic modules 13, a plurality of light projecting arrays 14, and a plurality of light receiving arrays 15. The electromagnetic module 13 is disposed against the inner wall of the main body 101. The electromagnetic module 13 includes a first electromagnetic module 131, a second electromagnetic module 132, a third electromagnetic module 133, and a fourth electromagnetic module 134. The fifth electromagnetic module 135 and the sixth electromagnetic module 136, the electromagnetic module 13 generates magnetic force to attract the metal ball 12 by external electric power. When the current quantity of the electromagnetic module changes, the current intensity sensor 1024 The magnitude of the current change is recorded and a data amount of current is generated. In addition, the light projecting array 14 includes a first light projecting array 141, a second light projecting array 142, and a third light projecting array 143, and the light receiving array 15 includes a first light receiving array 151, a second light receiving array 152, and a third light receiving array. 153. As can be seen from the cross-sectional views of FIGS. 2 and 3, the light projecting array 14 and the light receiving array 15 are located between the electromagnetic module 13 and the metal ball 12. In the present embodiment, the material of the metal ball 12 is made of iron, but the material of the metal ball 12 is not limited to iron, and may be composed of other substances that can be attracted by magnetic force. In addition, a metal outer wall 16 may be disposed outside the electromagnetic module 13, and the metal outer wall 16 can exert the function of metal shielding to prevent the electromagnetic module 13 from being affected by external electromagnetic waves.
請參閱圖4,圖4為第一投光陣列141和第一受光陣列151的立體圖。第一投光陣列141是由多個投光器141a排成的矩形陣列,而第一受光陣列151是由多個受光器排列成的矩形陣列,每一個投光器141a都有一個相對應的受光器151a,也就是說第一投光陣列141與第一受光陣列151是彼此相對。當投光器141a發出光線時,相對應的受光器151a會立即偵測到。同理,當投光器141a的光線未被受光器151a偵測到時,相對應的受光器151a也會立即得知。Please refer to FIG. 4. FIG. 4 is a perspective view of the first light projecting array 141 and the first light receiving array 151. The first light projecting array 141 is a rectangular array arranged by a plurality of light projectors 141a, and the first light receiving array 151 is a rectangular array in which a plurality of light receivers are arranged, and each of the light projectors 141a has a corresponding light receiver 151a. That is, the first light projecting array 141 and the first light receiving array 151 are opposed to each other. When the light projector 141a emits light, the corresponding light receiver 151a detects it immediately. Similarly, when the light of the light projector 141a is not detected by the light receiver 151a, the corresponding light receiver 151a is also known immediately.
參閱圖5,圖5為第一受光陣列151偵測金屬球12所在位置的示意圖。金屬球12在主體101的內部會遮蔽住其中一個投光器141a所發射的光線,導致相對應的受光器151a會立即感測到,如此便可獲知金屬球12所在的橫向位置。同理,第二受光陣列152和第三受光陣列153也可獲得金屬球12所在縱向位置。也就是說,藉由受光陣列15所發出的感測信號,可得知金屬球12在主體101內部的正確位置。受光陣列15再將所感測到的位置資訊傳送給距離計算模組1023,讓距離計算模組1023算出金屬球12在主體101內的實際位置,並產生一位置點的數據資料。在本實施例中,投光器141a的光源為雷射光,這樣金屬球12被偵測出的位置可較為準確。此外,當金屬球12的位置資訊傳送給距離計算模組1023時,計時器1022會產生一個時間點,而計時器1022便會將該時間點給記錄下來,並產生一時間點的數據資料,例如:請參考圖6,金屬球12的位置從X1移動至X2時,距離計算模組1023接收到X1的位置資訊時,計時器1022獲得一時間點t1秒,另外距離計算模組1023接收到X2的位置資訊時,計時器1022也獲得一時間點t2秒,計時器會將t1和t2記錄下來,便可得知金屬球從X1移動置X2所花費的時間。Referring to FIG. 5, FIG. 5 is a schematic diagram of the first light receiving array 151 detecting the position of the metal ball 12. The metal ball 12 shields the light emitted by one of the light projectors 141a inside the main body 101, so that the corresponding light receiver 151a is immediately sensed, so that the lateral position of the metal ball 12 can be known. Similarly, the second light receiving array 152 and the third light receiving array 153 can also obtain the longitudinal position of the metal ball 12. That is to say, the correct position of the metal ball 12 inside the main body 101 can be known by the sensing signal emitted by the light receiving array 15. The light receiving array 15 then transmits the sensed position information to the distance calculation module 1023, and causes the distance calculation module 1023 to calculate the actual position of the metal ball 12 in the main body 101, and generate data data of a position point. In this embodiment, the light source of the light projector 141a is laser light, so that the detected position of the metal ball 12 can be relatively accurate. In addition, when the position information of the metal ball 12 is transmitted to the distance calculation module 1023, the timer 1022 generates a time point, and the timer 1022 records the time point and generates data of a time point. For example, referring to FIG. 6, when the position of the metal ball 12 is moved from X1 to X2, when the distance calculation module 1023 receives the position information of X1, the timer 1022 obtains a time point t1 seconds, and the distance calculation module 1023 receives When the position information of X2 is used, the timer 1022 also obtains a time point t2 seconds, and the timer records t1 and t2 to know the time taken for the metal ball to move X2 from X1.
請參考圖7,圖7為金屬球12的受力方向示意圖。當加速度感測裝置10運作時,金屬球12受到電磁模組13的磁力吸引會停留在主體101內部的正中央位置,若當該金屬球12離開該矩形殼體的內部之中央位置後,電磁模組13會調整磁力以使該金屬球12回到主體101的內部之中央位置。因為金屬球12在主體101的內部之中央位置時,還是受到地心引力的影響,金屬球12會承受一個向下的重力F1,若要維持金屬球12停留在主體101的正中央位置,第一電磁模組131需提供向上的磁力M1吸住金屬球12,且磁力M1與重力F1相等,才能保持金屬球12停留在矩形殼體10a的正中央位置。相對的,第一電磁模組131會比其他電池模組多增加磁力M1,導致第一電磁模組131需提高電流的強度,而電流的強度所增加的量可利用數據偵測模組102的電流強度感測器1024偵測出來。經由第一電磁模組131增加的電流大小便可換算出磁力M1的大小,而磁力M1又等同於金屬球12所承受的重力F1,所以加速度感測裝置10在靜止時便可藉由第一電磁模組131增加的電流大小獲得所處環境的重力大小(也就是重力F1大小)。例如,若將加速度感測裝置10放置在航空器(未繪示,例如:飛機或太空梭)中,當航空器的高度提高時,金屬球12所承受的重力F1便會變小,為了使金屬球12保持在矩形殼體10a的正中央位置,第一電磁模組131便必須將磁力M1往下調整,藉由磁力M1的值便可以推知航空器於該位置的重力場大小。Please refer to FIG. 7. FIG. 7 is a schematic diagram of the force direction of the metal ball 12. When the acceleration sensing device 10 is operated, the magnetic ball 12 is attracted by the magnetic force of the electromagnetic module 13 to stay in the center of the main body 101. If the metal ball 12 leaves the center of the inner portion of the rectangular casing, the electromagnetic The module 13 adjusts the magnetic force to return the metal ball 12 to the center of the interior of the body 101. Since the metal ball 12 is still in the center position of the inside of the main body 101, it is still affected by gravity, and the metal ball 12 is subjected to a downward gravity F1. To maintain the metal ball 12 in the center of the main body 101, An electromagnetic module 131 is required to provide an upward magnetic force M1 to attract the metal ball 12, and the magnetic force M1 is equal to the gravity F1 to maintain the metal ball 12 in the center position of the rectangular casing 10a. In contrast, the first electromagnetic module 131 increases the magnetic force M1 more than other battery modules, so that the first electromagnetic module 131 needs to increase the intensity of the current, and the amount of current increase can be increased by the data detecting module 102. The current intensity sensor 1024 detects it. The magnitude of the current increased by the first electromagnetic module 131 can be converted into the magnitude of the magnetic force M1, and the magnetic force M1 is equivalent to the gravity F1 of the metal ball 12, so the acceleration sensing device 10 can be used by the first The increased current magnitude of the electromagnetic module 131 obtains the magnitude of the gravity of the environment (i.e., the magnitude of the gravity F1). For example, if the acceleration sensing device 10 is placed in an aircraft (not shown, for example, an airplane or a space shuttle), when the height of the aircraft is increased, the gravity F1 of the metal ball 12 is reduced, in order to make the metal ball 12 is held at the center of the rectangular casing 10a, and the first electromagnetic module 131 must adjust the magnetic force M1 downward. The value of the magnetic force M1 can infer the magnitude of the gravity field of the aircraft at the position.
請參考圖8至圖10,圖8至圖10為本實施力之加速度感測裝置10應用在測量加速度時的剖視圖。當加速度感測裝置10設置在一個等速移動的交通工具(例如火車)上時,啟動速度感測裝置10後,金屬球12會懸浮在矩形殼體10a內部的中央定點L1處(請參考圖8),若火車瞬間加速產生一瞬間加速度A2,加速度感測裝置10的主體101也會被火車帶動具有瞬間加速度A2。然而,主體101內的金屬球12本身是受到電磁模組13的吸引而處於懸浮的狀態,不像主體101是設置在火車上(主體101與火車成為同一個體),所以由於慣性作用金屬球12會往火車前進的反方向移動,而金屬球12反方向移動的瞬間加速度也會等同於火車的瞬間加速度A2(請參考圖9),此種現象類似火車加速啟動的那一瞬間,車內的乘客會往火車前進的反方向傾斜或往椅背頂靠。在圖10中,金屬球12受到火車瞬間加速度A2的影響,其從中央定點L1移動至左方定點L2,第一受光陣列151會將中央定點L1和左方定點L2的位置資訊回報給距離計算模組1023,同時計時器1022也產生中央定點L1的時間點Lt1和左方定點L2的時間點Lt2。最後經由顯示螢幕1021獲得計時器1022和距離計算模組1023的數據之料,再經由加速度的位移公式 ( S=1/2at2),便可求得金屬球從中央定點L1移動至左方定點L2的瞬間加速度,而金屬球的瞬間加速度也就是火車的瞬間加速度A2。相較於習知的加速度感測器,本實施例之加速度感測器10利用雷射光來偵測金屬球12的位置,所獲得的加速度資料會有較高的準確度,此外加速度感測裝置10的體積較不占空間,更便於攜帶使用。Please refer to FIG. 8 to FIG. 10 . FIG. 8 to FIG. 10 are cross-sectional views of the acceleration sensing device 10 of the present embodiment applied to measure acceleration. When the acceleration sensing device 10 is disposed on a vehicle (such as a train) that moves at a constant speed, after the speed sensing device 10 is activated, the metal ball 12 is suspended at a central fixed point L1 inside the rectangular housing 10a (please refer to the figure). 8) If the train instantaneously accelerates to generate an instantaneous acceleration A2, the main body 101 of the acceleration sensing device 10 is also driven by the train to have an instantaneous acceleration A2. However, the metal ball 12 in the main body 101 itself is in a state of being suspended by the electromagnetic module 13, unlike the main body 101 which is disposed on the train (the main body 101 and the train are the same individual), so the metal ball 12 due to inertia It will move in the opposite direction of the train forward, and the instantaneous acceleration of the metal ball 12 moving in the opposite direction will be equivalent to the instantaneous acceleration A2 of the train (please refer to Figure 9). This phenomenon is similar to the moment when the train accelerates to start. Passengers will lean in the opposite direction of the train forward or lean against the back of the chair. In FIG. 10, the metal ball 12 is affected by the instantaneous acceleration A2 of the train, which moves from the central fixed point L1 to the left fixed point L2, and the first light receiving array 151 returns the position information of the central fixed point L1 and the left fixed point L2 to the distance calculation. At the same time as the module 1023, the timer 1022 also generates the time point Lt1 of the central fixed point L1 and the time point Lt2 of the left fixed point L2. Finally, the data of the timer 1022 and the distance calculation module 1023 are obtained through the display screen 1021, and then the displacement formula of the acceleration (S=1/2at 2 ) is used to obtain the movement of the metal ball from the central fixed point L1 to the left fixed point. The instantaneous acceleration of L2, and the instantaneous acceleration of the metal ball is the instantaneous acceleration A2 of the train. Compared with the conventional acceleration sensor, the acceleration sensor 10 of the embodiment uses the laser light to detect the position of the metal ball 12, and the obtained acceleration data has higher accuracy, and the acceleration sensing device is further provided. The volume of 10 is less space-consuming and more portable.
另外,在上述的實施例中,加速度感測裝置10雖然包括數據偵測模組102中的計時器1022與距離計算模組1023,但本領域具有通常知識者應可明白在選擇不設置計時器1022與距離計算模組1023的情況下,也可以測得加速度,其是利用『F = ma』這條方程式所求得。詳細的說,在已知金屬球12的質量與其所受磁力的情況下,便可測得加速度。In addition, in the foregoing embodiment, the acceleration sensing device 10 includes the timer 1022 and the distance calculating module 1023 in the data detecting module 102. However, those skilled in the art should understand that the timer is not set in the selection. In the case of 1022 and the distance calculation module 1023, the acceleration can also be measured, which is obtained by using the equation "F = ma". In detail, the acceleration can be measured in the case where the mass of the metal ball 12 and the magnetic force it receives are known.
除了測量加速度與重力之外,本發明之加速度感測裝置10還能用以感測飛機所受到的風向。例如,當飛機受到左側來風的吹襲時,位於主體101中的金屬球12便會往左移動,這樣加速度感測裝置10便會判斷飛機受到左側來風的吹襲。而且,藉由所量測到的加速度,也可以得知飛機所受的風力。In addition to measuring acceleration and gravity, the acceleration sensing device 10 of the present invention can also be used to sense the wind direction to which the aircraft is subjected. For example, when the aircraft is hit by the wind from the left side, the metal ball 12 located in the main body 101 will move to the left, so that the acceleration sensing device 10 will judge that the aircraft is hit by the wind from the left side. Moreover, the wind received by the aircraft can also be known by the measured acceleration.
本發明以實施例說明如上,然其並非用以限定本發明所主張之專利權利範圍。其專利保護範圍當視後附之申請專利範圍及其等同領域而定。凡本領域具有通常知識者,在不脫離本專利精神或範圍內,所作之更動或潤飾,均屬於本發明所揭示精神下所完成之等效改變或設計,且應包含在下述之申請專利範圍內。The present invention has been described above by way of examples, and is not intended to limit the scope of the claims. The scope of patent protection is subject to the scope of the patent application and its equivalent fields. Modifications or modifications made by those skilled in the art, without departing from the spirit or scope of the invention, are equivalent to the equivalents or modifications made in the spirit of the invention and should be included in the following claims. Inside.
101...主體101. . . main body
12...金屬球12. . . Metal ball
13...電磁模組13. . . Electromagnetic module
131...第一電磁模組131. . . First electromagnetic module
132...第二電磁模組132. . . Second electromagnetic module
133...第三電磁模組133. . . Third electromagnetic module
134...第四電磁模組134. . . Fourth electromagnetic module
14...投光陣列14. . . Projection array
141...第一投光陣列141. . . First light projecting array
142...第二投光陣列142. . . Second projection array
15...受光陣列15. . . Light receiving array
151...第一受光陣列151. . . First light receiving array
152...第二受光陣列152. . . Second light receiving array
Claims (8)
一矩形殼體;
一金屬球,位於該矩形殼體的內部之中央位置,該金屬球可被磁力所吸引;
多個電磁模組,是設置在該矩形殼體的內側壁面;
多個投光陣列,是設置在該矩形殼體的內側壁面,且位於該電磁模組與該金屬球之間;
多個受光陣列,是設置在該矩形殼體的內側壁面,且位於該電磁模組與該金屬球之間,該受光陣列與該投光陣列是彼此相對;
其中,該金屬球是藉由該電磁模組所施加的一磁力而保持在該矩形殼體的內部之中央位置,且當該金屬球離開該矩形殼體的內部之中央位置後,該電磁模組會調整磁力以使該金屬球回到該矩形殼體的內部之中央位置。
An acceleration sensing device includes:
a rectangular housing;
a metal ball located at a central position inside the rectangular casing, the metal ball being attracted by a magnetic force;
a plurality of electromagnetic modules disposed on an inner side wall surface of the rectangular casing;
a plurality of light projecting arrays are disposed on an inner sidewall surface of the rectangular casing and located between the electromagnetic module and the metal ball;
a plurality of light receiving arrays disposed on the inner side wall surface of the rectangular casing and located between the electromagnetic module and the metal ball, the light receiving array and the light projecting array being opposite to each other;
Wherein the metal ball is held at a central position inside the rectangular casing by a magnetic force applied by the electromagnetic module, and the electromagnetic ball is removed from a central position of the interior of the rectangular casing. The set adjusts the magnetic force to return the metal ball to the center of the interior of the rectangular housing.
一距離計算模組,該距離計算模組接收該金屬球的位置資訊,並產生一位置點的數據資料;
一計時器,該距離計算模組接收到該金屬球的位置資訊時,該計時器會產生一個時間點,並將該時間點給記錄下來產生一時間點的數據資料;
其中,藉由該距離計算模組和該計時器產生的該數據資料便算出該金屬球所移動的瞬間加速度。The acceleration sensing device of claim 2, further comprising a data detection module, the data detection module comprising:
a distance calculation module, the distance calculation module receives position information of the metal ball, and generates data data of a position point;
a timer, when the distance calculation module receives the position information of the metal ball, the timer generates a time point, and records the time point to generate data data of a time point;
The instantaneous acceleration of the movement of the metal ball is calculated by the distance calculation module and the data generated by the timer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW102113886A TWI470229B (en) | 2013-04-19 | 2013-04-19 | Acceleration sensor with gravity measuring function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW102113886A TWI470229B (en) | 2013-04-19 | 2013-04-19 | Acceleration sensor with gravity measuring function |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201441625A true TW201441625A (en) | 2014-11-01 |
TWI470229B TWI470229B (en) | 2015-01-21 |
Family
ID=52422874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW102113886A TWI470229B (en) | 2013-04-19 | 2013-04-19 | Acceleration sensor with gravity measuring function |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI470229B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106771357A (en) * | 2015-06-08 | 2017-05-31 | 鄢碧珠 | A kind of adjustable acceleration transducer of precision |
CN112720498A (en) * | 2020-12-30 | 2021-04-30 | 深兰人工智能芯片研究院(江苏)有限公司 | Control method and device for manipulator, pickup device and storage medium |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI655434B (en) * | 2016-12-27 | 2019-04-01 | 孫君意 | Direction sensor |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4592235A (en) * | 1983-11-18 | 1986-06-03 | Fink Lawrence E | Optical accelerometer |
TW479161B (en) * | 1999-08-18 | 2002-03-11 | Zeroplus Technology Co Ltd | Gradient and acceleration detecting device |
AT503995B1 (en) * | 2006-08-07 | 2009-03-15 | Arc Seibersdorf Res Gmbh | MINIATURE SENSOR ACCELERATION |
CN201060581Y (en) * | 2007-06-14 | 2008-05-14 | 孙勇 | Gravitational acceleration measurement demonstrator |
TWM385698U (en) * | 2010-02-22 | 2010-08-01 | Yang-Han Li | Exercise equipment capable of providing exercise trajectory information |
-
2013
- 2013-04-19 TW TW102113886A patent/TWI470229B/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106771357A (en) * | 2015-06-08 | 2017-05-31 | 鄢碧珠 | A kind of adjustable acceleration transducer of precision |
CN112720498A (en) * | 2020-12-30 | 2021-04-30 | 深兰人工智能芯片研究院(江苏)有限公司 | Control method and device for manipulator, pickup device and storage medium |
Also Published As
Publication number | Publication date |
---|---|
TWI470229B (en) | 2015-01-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6862039B2 (en) | Seismometers and methods for sensing vibration | |
US20140290372A1 (en) | Fiber optic directional acoustic sensor | |
US20100103777A1 (en) | Seismograph system | |
RU2015112966A (en) | CLOSED CIRCUIT CONTROL METHODS FOR OPTICAL READING MOVEMENT SENSORS | |
JP5926456B2 (en) | Optical accelerometer system | |
TWI470229B (en) | Acceleration sensor with gravity measuring function | |
KR20070120997A (en) | A device with a sensor arrangement | |
FR2986322B1 (en) | ON-BOARD DEVICE FOR MEASURING THE MASS AND THE POSITION OF THE CENTER OF GRAVITY OF AN AIRCRAFT | |
CN104266740A (en) | Transformer winding and iron core surface vibration signal detecting system and method | |
RU2012141153A (en) | GRADIENTOMETER | |
JP2013501240A5 (en) | ||
JP2013171041A (en) | Apparatus, system, and method for monitoring earthquake | |
JP2021512337A (en) | A device for measuring the gradient change of a structure and a method for measuring the gradient change of a structure using the device. | |
CN104236523A (en) | Angle detection device and inclined angle sensor with angle detection device | |
CN105627949A (en) | Optical sensing-type three-dimensional high-precision contact scanning measurement probe | |
CN109061225A (en) | A kind of acceleration measurement device and its acceleration measurement method | |
JP3199375U (en) | Surveying equipment | |
US20120008149A1 (en) | Velometer, navigational apparatus and methods for direct measurement of object's own velocity | |
ES2775215T3 (en) | Fiber optic acceleration sensor | |
CN102539819A (en) | System for testing speeds and appearances of high-speed moving objects | |
CN203163722U (en) | Vibrating wire type level detection device | |
KR20160127385A (en) | Magnetorheological elastomer magnetic sensor | |
KR102209753B1 (en) | A method and apparatus for measuring a slope change amount based on image recognition, which real-time measurement of a relative slope change amount in comparison with a point in time when installed in a structure and a facility | |
US20230105395A1 (en) | Vibration remote sensor based on speckles tracking, which uses an optical-inertial accelerometer, and method for correcting the vibrational noise of such a sensor | |
KR101427810B1 (en) | 3 axis optic acceleration sensor for seismometer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |