TWM546503U - Equipment of deep sea piezocone - Google Patents

Description

Seabed measurement cone penetration test equipment

This creation is a test device for soil measurement in the sea, especially a conical penetration test device that can be used for deep sea exploration.

Natural gas hydrates are found in the outer seas of southwestern Taiwan, and there are abundant offshore wind fields in the western seas. For the development and application of marine energy, site surveys must be conducted to establish the characteristics of the site. Due to the natural environment of typhoons and earthquakes, the geotechnical exploration technology in Taiwan's waters has become more important. Based on the exploration needs of the energy industry, the site survey conducted by the Taiwan Marine Engineering Foundation Design Institute must evaluate the site characteristics of water depths of several hundred to several thousand meters. This is an arduous task. It is necessary to be in such a deep seabed. It is difficult to obtain high-quality cores and operate indoor tests. The local test is the most direct way to obtain the characteristics of the site. Therefore, the deep sea cone penetration test is more important.

The Cone Penetration Test (CPT) is a widely used field test method. In the 1930s, the Dutch Pieter Barentsen developed a simple and practical mechanical survey tool, the Dutch cone penetrometer, in order to investigate the thickness and carrying capacity of the weak soil. Later, after continuous research and improvement, the appearance of the electric cone penetrometer during the Second World War greatly improved the accuracy and integrity of the data acquisition, and the researchers found that CPT can be applied to In the deep sand layer, obtained The result of the bearing capacity and shear strength of the deep sand layer. By 1965, Fugro had used the electronic conical penetration instrument as a tool for general soil investigations for the first time and has since been used more widely. In the mid-1970s, Norway, Sweden and the United States installed a water pressure gauge in an electronic cone to measure the pore water pressure, which is the widely used piezocone penetrometer (CPTu).

A conical penetration tester according to the ASTM D5778 standard is a cone having a bottom diameter of 35.7 mm (cross-sectional area of 10 cm ² ), the cone angle is 60 degrees, and the cone is penetrated into the soil at a steady speed of 20 mm/sec during the test. In addition to recording the cone tip impedance (q _C ) and the sleeve friction resistance (f _S ) acting on the outer wall of the cylinder behind the cone, the test can also be installed with a piezometer. Pore water pressure in the soil layer. The CPT operation is simple and rapid, and the data is continuous, so it provides great help for the measurement and analysis of the existing soil.

Compared with the conical penetration test equipment used in the land, the sea area operation cone penetration test mainly needs to face the analysis of the accuracy of the measured sensing parameters and the support system of the peripheral equipment. The design of the deep sea conical penetration instrument must consider the operating environment under severe conditions. The equipment must have sufficient measurement accuracy, pressure resistance, corrosion resistance, water resistance, and the influence of the temperature difference placed on the ship's upper deck and the seabed on the test performance.

In the measured sensing parameters, the sea cone penetration test is the same as that used on land, and at least contains the basic measurement components of CPTu: cone tip impedance (q _C ), casing friction resistance (sleeve) Friction, f _S ) and piezometer. However, because of the high pressure environment in the deep sea when entering the seabed, it is more important that the sensing parameters reflect the measurement resolution of the actual site condition.

Unlike the terrestrial environment, the hydrostatic pressure (u _S ) of the 2000 m deep seabed test environment is as high as 20 MPa (200 bar), with a standard penetration cone with a cross-sectional area of 10 cm ² (diameter: 35.7 mm). In terms of its high impedance, the penetration resistance (q _C ) may be as high as 20 kN before it penetrates, but for a weaker sea sediment site, the actual q _C value is about 20 to 100 kPa. That is, 1/1000~1/200 of the hydrostatic pressure around it, the same measurement range difference also occurs in the casing frictional resistance (f _S ) and excess pore water pressure (Δu).

However, at present, for deep sea conical penetration instruments used in marine land engineering, q _C and f _S use a load cell measurement mode, which simultaneously senses the depth water pressure and the penetration resistance value when penetrating into the seabed. Whether the sensing accuracy can filter out the influence of high water pressure and present the penetration resistance values (q _C and f _S ) is a major challenge for the resolution of the load cell. In addition, f _S is measured by converting the lateral frictional resistance into axial pressure by the ring piece connecting the sleeves, and the two pressure sensors are mounted on the same shaft, and the force is deformed simultaneously when the cone penetrates. Under the load element, q _C and f _S are mutually influenced by the configuration form, and must be carefully evaluated and proposed to be calibrated or corrected. In addition, in order to meet the measurement accuracy required in a high-pressure environment, in such a high pressure difference state, the equipment must have sufficient measurement accuracy, which still needs to be overcome.

In view of the above-mentioned shortcomings, the author is a brainstorming method for combining the measurement of the sensing parameters with a differential pressure transducer and a special mechanism design, and performing a cone penetration test. . This design concept can utilize the sensitivity characteristics of the differential pressure sensor to the pressure change in the hydrostatic environment such as the seabed to achieve the measurement accuracy required in the high pressure environment. Therefore, how to develop an innovative structure that is more ideal and practical is what consumers are eagerly awaiting, and it is also the goal and direction of relevant industry players to work hard to develop breakthroughs. In view of this, the creator is He has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation, he has to achieve a practical and practical creation.

The measurement accuracy required in a high-pressure environment is so high In the state of pressure difference, the equipment must have sufficient measurement accuracy.

Using a differential pressure sensor for the hydrostatic environment of the seabed, The sensitivity characteristic of the pressure change achieves the measurement accuracy required in the high pressure environment, and further designs the conical penetration device of the sensor pressure mechanism.

The present invention provides a conical penetration test device for seafloor measurement, which comprises a first pipe body, the front end of the first pipe body is provided with a consistent taper head, and the rear end of the penetrating cone head is provided with a consistent An impedance differential pressure sensor, the side of the cone is formed with a water pressure inlet, and the water pressure inlet is connected with a first water pressure pipeline, and the end of the first pipe body is provided with a limiting portion, The upper portion of the limiting portion is provided with a pushing block, a second tube body, and the front end portion of the second tube body is disposed on the pushing block, and the second tube body is provided with a frictional impedance differential pressure sensor. The second pipe body is provided with a second water pressure pipe, and the second water pressure pipe is connected with a water pressure chamber, wherein the water pressure chamber is provided with a pore water pressure difference sensor, a sea water pressure pipe, The seawater pressure pipe has an inlet disposed at an end of the second pipe body, and the seawater pressure pipe is respectively connected to the penetration impedance differential pressure sensor, the frictional impedance differential pressure sensor, and the pore water pressure differential sensor. By.

This design uses a differential pressure sensor to measure the penetration impedance, frictional impedance and excess pore pressure (Δu) respectively. The function of the differential pressure sensor is to reflect the two ends of the differential pressure sensor. The pressure difference values of different closed environments, the pressure increments (q _C , f _S and Δu) during the penetration process are transmitted to obtain accurate and continuous data.

The embodiments, structures, and features of the present invention are described in detail with reference to the preferred embodiments of the present invention.

10‧‧‧First tube

11‧‧‧ penetration cone

12‧‧‧Into the impedance differential pressure sensor

121‧‧‧ penetration into the upper chamber of the impedance

122‧‧‧ penetration into the lower chamber

13‧‧‧ penetrate rubber unit

131‧‧‧Limited slot

132‧‧‧ penetrated the rubber cone head

133‧‧‧ penetrated into stainless steel round flakes

14‧‧‧ Limit ring

15‧‧‧Water pressure inlet

151‧‧‧First water pressure pipeline

16‧‧‧Limited

17‧‧‧Promoting blocks

18‧‧‧ friction rubber unit

181‧‧‧ friction rubber cone head

182‧‧‧Friction stainless steel round foil

20‧‧‧Second body

21‧‧‧Friction Impedance Differential Pressure Sensor

211‧‧‧ Frictional impedance upper chamber

212‧‧‧The chamber under frictional impedance

22‧‧‧Second water pressure pipeline

23‧‧‧Hydraulic room

24‧‧‧ Pore water pressure difference sensor

241‧‧‧ pore water pressure upper chamber

242‧‧‧The pore water pressure chamber

25‧‧‧Hydraulic rubber unit

251‧‧‧Hydraulic pressure tank

252‧‧‧Water pressure rubber cone head

253‧‧‧Water pressure stainless steel round flakes

30‧‧‧Seawater pressure pipe

31‧‧‧ Entrance

40‧‧‧Slope sensing element

50‧‧‧Temperature sensing components

60‧‧‧Information Capture System

Figure 1 is an external view of the creation.

Figure 2 is a schematic diagram of the internal structure of the creation.

Figure 3 is a partial schematic view of the penetrating impedance differential pressure sensor of the present invention.

Figure 4 is a partial schematic view of the frictional impedance differential pressure sensor of the present invention.

Figure 5 is a partial schematic view of the pore water pressure difference sensor of the present invention.

First, the drawings and internal structure of the preferred embodiment of the present invention are shown in FIGS. 1 and 2, but the embodiments are for illustrative purposes only and are not limited by the structure in the patent application.

The conical penetration device comprises, as shown in Figures 1 and 2, comprising: a first tube body 10, the first tube body 10 is provided with a constant entry cone 11 at the front end, and the penetration cone 11 is The end system is provided with a constant impedance drop difference sensor 12, please cooperate with the third figure, which is a partial schematic diagram of the penetration impedance differential pressure sensor, and the penetration impedance difference sensor 12 is respectively provided at two ends There is a constant impedance upper chamber 121 and a constant impedance lower chamber 122. The penetration impedance upper chamber 121 and the penetration impedance lower chamber 122 are provided with a high pressure resistant rubber paste, the penetration impedance differential sensor 12 and the penetration cone. The first end of the first tube body 10 is provided with a limiting ring 14 , and the limiting slot 131 is configurable. Limited to the retaining ring 14 and having a displacement of a restricted position, the penetrating rubber cone head 132 is provided at the top of the conical head 132 and is provided with a constant stainless steel circular sheet 133 which penetrates the top of the stainless steel circular sheet 133 and the top of the penetrating rubber cone head 132 Contacting, the penetrating stainless steel circular sheet 133 is disposed at the bottom of the chamber 122 under the penetration impedance, and a side of the penetration cone 11 is provided with a water pressure inlet 15, and the water pressure inlet 15 is connected with a first water pressure pipeline. 151, the end of the first pipe body 10 is provided with a limiting portion 16, the locking portion 16 is provided with a pushing block 17, and the pushing block 17 is provided with a friction rubber unit 18, please cooperate with Figure 4. As shown, the top end is provided with a friction rubber cone head 181 a friction stainless steel circular sheet 182 is attached to the top of the friction rubber unit 18, and the friction stainless steel circular sheet 182 is in contact with the top of the friction rubber cone head 181; a second tube 20, the second tube The front end of the body 20 is disposed on the pushing block 17, and the second pipe body 20 is provided with a frictional impedance differential pressure sensor 21, which is referred to as FIG. 4, which is a frictional impedance differential pressure sensing. The frictional impedance differential sensor 21 is respectively provided with a frictional impedance upper chamber 211 and a frictional impedance lower chamber 212. The frictional resistance upper chamber 211 and the frictional impedance lower chamber 212 are provided with resistance. a high-pressure silicone rubber paste, the friction stainless steel circular sheet 182 is disposed at the bottom of the chamber 212 under the frictional resistance, and a second water pressure line 22 and a first water pressure line 151 are disposed in the second tube body 20 In connection with the second water pressure line 22, a water pressure chamber 23 is connected to the water pressure chamber 23, and a pore water pressure difference sensor 24 is disposed in the water pressure chamber 23, please refer to FIG. A schematic diagram of a pore water pressure difference sensor 24, which is respectively provided at two ends of the pore water pressure difference sensor 24 A pore water pressure The upper chamber 241 and a pore water pressure lower chamber 242, the pore water pressure upper chamber 241 and the pore water pressure lower chamber 242 are provided with a high pressure resistant rubber paste, and a water pressure is provided in the water pressure chamber 23 The rubber unit 25 has a water pressure groove 251 at the bottom thereof, and a water pressure rubber cone head 252 is arranged on the top, and a water pressure stainless steel circular sheet 253 is attached to the top of the water pressure rubber unit 25 and the water pressure rubber. The tops of the conical heads 252 are in contact with each other; the three seawater pressure pipes 30 are provided with an inlet 31 at the end of the second pipe body 20, and the other end of the seawater pressure pipe 30 is respectively coupled to the penetration impedance The penetration impedance upper chamber 121 of the differential sensor 12, the frictional resistance upper chamber 211 of the frictional impedance differential sensor 21, and the pore water pressure upper chamber 241 of the pore water pressure difference sensor 24 are connected. An external water pressure can be provided as a reference pressure; a tilt sensing component 40, a temperature sensing component 50 and a data capture system 60 are mounted in the second tubular body 20.

In order to further understand the characteristics of this creation, the use of the means of technology and the expected results, we will describe the use of this creation, I believe that this can have a deeper and more specific understanding of the creation, as follows; Please refer to Figure 3, when the conical penetrating device is to be measured, the penetrating cone 11 at the front end will first contact the sea floor. When the penetrating cone 11 penetrates into the sea floor, the surface will be contacted by the seabed. The penetration resistance and the deformation, the deformation amount of the surface pushes the penetration rubber unit 13, and the penetration rubber unit 13 generates a thrust, so that the penetration rubber unit 13 can move within a predetermined distance of the limiting groove 131, the penetration rubber unit 13 The top penetration rubber cone 132 will push against the penetration stainless steel circular sheet 133 to push the silicone grease into the lower chamber 122, and penetrate the impedance of the lower chamber 122 to penetrate the impedance upper chamber 121. Connected to the seawater pressure pipe 30 The seawater pressure of the end inlet 31 is compared with each other, which allows the penetration impedance differential pressure sensor 12 to measure the difference in pressure between the upper chamber and the lower chamber, thereby knowing the pressure change when the penetration cone 11 is penetrated. The cone tip impedance can be measured and transmitted to the data capture system 60 for recording. In addition, since the penetration rubber unit 13 is in contact with the rubber cone head 132 in a tip contact manner and penetrates the stainless steel circular sheet. When 133 is in contact, the central portion of the stainless steel circular sheet 133 has a large deformation amount, and the pressure change thereof is relatively sensitive; then, as shown in Fig. 4, when the first tube body 10 penetrates the ground floor of the sea bottom, the outer circumference is The frictional resistance will be generated with the upper soil, so that the first pipe body 10 will generate a push-up reaction force. At this time, the limit portion 16 at the rear of the first pipe body 10 pushes the push block 17 upward to form an axis. The thrust force causes the friction rubber unit 18 to generate a thrust, and the friction rubber cone 181 of the friction rubber unit 18 pushes the friction stainless steel circular sheet 182 so that the friction stainless steel circular sheet 182 pushes the frictional resistance lower cavity room 212, causing a pressure change in the silicone grease in the chamber 212 under the frictional resistance, and the pressure change of the chamber 212 through the frictional resistance communicates with the frictional resistance upper chamber 211 to the seawater pressure of the upper end 31 of the seawater pressure tube 30. In comparison, the frictional impedance differential pressure sensor 21 can measure the difference in the pressure between the upper chamber and the lower chamber, and can further know the magnitude of the circumferential frictional resistance of the tube during penetration, and transmit the value to the data. The recording is performed in the scooping system 60. In addition, since the friction rubber unit 18 is in contact with the friction stainless steel circular sheet 182 by the tip of the friction rubber cone 181, the center of the stainless steel circular sheet 182 is larger. The amount of deformation, the pressure change will be more sensitive; at the same time, please refer to the water inlet 15 on the side of the cone 11 as shown in Fig. 5, when the penetration cone 11 penetrates into the sea bottom, the seawater enters from the water pressure inlet 15 The water pressure is introduced into the first water pressure line 151 and the second water pressure line 22, and then enters the water pressure chamber 23, and the pore water is pushed by the water pressure. Pressing the water pressure groove 251 at the bottom of the rubber unit 25 to generate a change in pressure, the water pressure pushing the water pressure groove 251 to drive the water pressure rubber cone head 252 to push the water pressure stainless steel circular sheet 253 to push the pore water Pressing the chamber 242, the pressure change through the pore water pressure lower chamber 242 is compared with the seawater pressure of the pore water pressure upper chamber 241 communicating with the upper end 31 of the seawater pressure tube 30, so that the pore water pressure difference is sensed. The device 24 can know the pressure difference between the seabed water pressure and the water pressure entered by the seawater pressure pipe 30, and transmit the value to the data extraction system 60 for recording; in addition, the inclination sensing element 40 and the temperature sense The measuring element 50 can record the inclination angle of the first tube body 10 and the second tube body 20 and the sea floor temperature during the penetration process, and record it to the data extraction system 60.

The penetration impedance differential pressure sensor 12, the frictional impedance differential pressure sensor 21 and the pore water pressure differential sensor 24 designed in this way are installed in an inner hollow bar, and are double O-rings. The penetration impedance differential pressure sensor 12, the frictional impedance differential pressure sensor 21 and the pore water pressure differential sensor 24 form two independent penetration impedance upper chambers 121, a penetration impedance lower chamber 122, and friction. The upper impedance chamber 211, the lower frictional impedance chamber 212, the pore water pressure upper chamber 241, and the pore water pressure lower chamber 242. The function of the penetration impedance differential pressure sensor 12, the frictional impedance differential pressure sensor 21 and the pore water pressure differential sensor 24 is to compress the pressure of different closed environments of the upper chamber and the lower chamber at both ends of the differential pressure sensor. The difference value, when the two closed environments have connected pipes, the pressure difference is zero. Using this sensing characteristic, the design is connected to the hydrostatic pressure (u _S ) of the surrounding seabed operating environment to form a penetration impedance differential pressure sensor 12, a frictional impedance differential pressure sensor 21, and a pore water pressure difference. The sensor 24 is located in the impedance upper chamber 121, the penetration lower chamber 122, the frictional impedance upper chamber 211, the frictional impedance lower chamber 212, the pore water pressure upper chamber 241, and the pore water pressure lower chamber 242. Pressure state, in order to eliminate the effect of hydrostatic pressure, and then use silicone grease to transfer the pressure increase (Δp) change during the penetration process and convert it into the corresponding sensing parameter (q _C , f _S and Δu).

The measurement pressure transmitted to the penetration impedance differential pressure sensor 12, the frictional impedance differential pressure sensor 21, and the pore water pressure differential sensor 24 is the use of silicone grease to transmit the pressure during the penetration process. The escess pressure (Δp) changes and is converted into corresponding sensing parameters (q _C , f _S and Δu). In order to be able to react to the local pressure change in real time, the penetration impedance differential sensor 12, the frictional impedance differential pressure sensor 21, and the pore water pressure difference sensor 24 penetrate the impedance upper chamber 121 and penetrate the impedance lower chamber. 122. The frictional resistance upper chamber 211, the frictional impedance lower chamber 212, the pore water pressure upper chamber 241 and the pore water pressure lower chamber 242 are filled with a high-pressure resistant rubber paste and a stainless steel circular sheet 133, and a friction stainless steel circle. The sheet 182 and the hydraulic stainless steel circular sheet 253 are composed.

The design theory of the chamber contact surface is the theory of elastic thin plates (Timoshenko and Woinowsky-Krieger, 1959), the diaphragm in the chamber (ie, the penetration of stainless steel circular sheet 133, the friction stainless steel circular sheet 182 and the hydraulic stainless steel round). When the sheet 253) is subjected to pressure, linear elastic deformation occurs, and the sheet pressure and deformation can be calculated according to the theory. If the amount of pressure change is large, the thickness of the penetration stainless steel circular sheet 133, the friction stainless steel circular sheet 182, and the hydraulic stainless steel circular sheet 253 can be appropriately adjusted according to the measurement requirements.

The function of filling the internal high-pressure resistant rubber paste is to prevent the seawater from infiltrating into the penetration impedance difference sensor 12, the frictional impedance differential pressure sensor 21, and the front end contact surface of the pore water pressure difference sensor 24 to cause corrosion loss, and The pressure can be evenly distributed on the front end contact faces of the penetration impedance differential pressure sensor 12, the frictional impedance differential pressure sensor 21, and the pore water pressure differential sensor 24.

By summarizing the above description, with the design of the creation structure, there are many advantages and practical values mentioned above, so this creation is an excellent creation and has not seen in the same technical field. The same or similar product creation or public use, so this creation has met the requirements of the novelty of "newness" and "progressiveness", is to apply according to law.

10‧‧‧First tube

11‧‧‧ penetration cone

12‧‧‧Into the impedance differential pressure sensor

13‧‧‧ penetrate rubber unit

14‧‧‧ Limit ring

15‧‧‧Water pressure inlet

151‧‧‧First water pressure pipeline

16‧‧‧Limited

17‧‧‧Promoting blocks

18‧‧‧ friction rubber unit

20‧‧‧Second body

22‧‧‧Second water pressure pipeline

23‧‧‧Hydraulic room

24‧‧‧ Pore water pressure difference sensor

25‧‧‧Hydraulic rubber unit

30‧‧‧Seawater pressure pipe

31‧‧‧ Entrance

40‧‧‧Slope sensing element

50‧‧‧Temperature sensing components

60‧‧‧Information Capture System

Claims (10)

The utility model relates to a conical penetration test device for seafloor measurement, which comprises: a first pipe body, the front end of the first pipe body is provided with a consistent taper head, and the rear end of the penetrating cone head is provided with a consistent impedance difference differential sensor The water pressure inlet is connected to a first water pressure pipe, and the end of the first pipe body is provided with a limiting portion, and the limiting portion is fastened. a second tubular body is disposed on the push block, and the second tubular body is provided with a frictional impedance differential pressure sensor, and the second tubular body is disposed a second water pressure pipeline is connected to the first water pressure pipeline, and the second water pressure pipeline is connected to a water pressure chamber, wherein the water pressure chamber is provided with a pore water pressure difference sensor; a seawater pressure The seawater pressure pipe has an inlet disposed at an end of the second pipe body, and the seawater pressure pipe is respectively sensed with the penetration impedance differential pressure sensor, the frictional impedance differential pressure sensor, and the pore water pressure difference Connected to the device. The conical penetration test device for sea bottom measurement according to claim 1, wherein the penetration impedance differential sensor has a constant impedance lower chamber and a constant impedance upper chamber respectively, and the penetration impedance lower chamber And the penetration resistance upper chamber is filled with a high-pressure resistant rubber paste, the penetration impedance differential sensor and the penetration cone end are provided with a consistent rubber unit, and the top is provided with a stainless steel circular sheet, which is inserted into the stainless steel circle. The shaped sheet is disposed at the bottom of the chamber under the penetration impedance, and the seawater pressure tube is in communication with the penetration impedance upper chamber. The conical penetrating test device for seafloor measurement according to claim 2, wherein the penetrating rubber unit comprises a limit groove and a consistent rubber cone, and the first pipe system is oppositely provided with a limit. The ring may limit the limiting slot such that the limiting slot is movable a predetermined distance, and the penetrating stainless steel circular sheet is in contact with the top of the penetrating rubber cone. The conical penetration test device according to claim 1, wherein the frictional impedance differential sensor is respectively provided with a frictional impedance upper chamber and a frictional impedance lower chamber, and the frictional impedance upper chamber And the friction resistance is filled in the chamber with a high pressure resistant rubber paste, the pushing block is provided with a friction rubber unit, and a friction stainless steel circular sheet is arranged on the top of the friction rubber unit, and the friction stainless steel circular sheet is set on the frictional resistance At the bottom of the lower chamber, the seawater pressure tube is in communication with the upper chamber of the frictional resistance. The conical penetration test apparatus according to claim 4, wherein the frictional anti-skin unit is provided with a friction rubber cone at the top, and the friction stainless steel circular sheet is in contact with the top of the friction rubber cone. The conical penetration test device according to claim 1, wherein the two sides of the pore water pressure differential sensor are respectively provided with a pore water pressure upper chamber and a pore water pressure lower chamber, the pore water Pressing the chamber and the pore water pressure, the chamber is provided with a high-pressure resistant rubber paste, and the water pressure chamber is provided with a water pressure rubber unit, and the water pressure rubber unit is provided with a water-pressure stainless steel circular sheet at the top of the water pressure rubber unit. The sheet is placed at the bottom of the chamber under the pore water pressure. The conical penetration test apparatus of the subsea measurement according to claim 6, wherein the bottom of the hydraulic rubber unit is recessed with a water pressure tank, and the water pressure tank is connected to the second water pressure pipeline, the water The top of the pressure rubber unit is provided with a water pressure rubber cone, and the water pressure stainless steel circular sheet is in contact with the top of the water pressure rubber cone. The conical penetration test apparatus according to claim 1, wherein the second tube body further comprises an inclination sensing element. The conical penetration test apparatus according to claim 1, wherein the second tube body further comprises a temperature sensing element. The conical penetration test apparatus for sea bottom measurement according to claim 1, wherein the second tube body further comprises a data extraction system.