CN213301955U - Multi-parameter measuring module and multi-parameter measuring instrument - Google Patents
Multi-parameter measuring module and multi-parameter measuring instrument Download PDFInfo
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- CN213301955U CN213301955U CN202021698513.1U CN202021698513U CN213301955U CN 213301955 U CN213301955 U CN 213301955U CN 202021698513 U CN202021698513 U CN 202021698513U CN 213301955 U CN213301955 U CN 213301955U
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Abstract
The utility model relates to a multi-parameter measuring module and a multi-parameter measuring instrument, wherein a laser dust detection module is arranged in a measuring module shell, and an optical channel is arranged between a light emitting unit and a light receiving unit; the measuring channel traverses the optical channel, the parameter measuring module is positioned in the middle position of the optical channel and is positioned between the light receiving unit and the measuring channel, the parameter measuring module comprises a gas concentration measuring module and/or a temperature measuring module, the parameter measuring module is provided with an optical trap structure, the gas concentration measuring module is used for detecting gas concentration, the temperature measuring module is used for detecting ambient temperature, and the optical trap structure is used for absorbing direct light. The parameter measurement module with the optical trap structure can absorb direct light, and the precision of a measurement result of the measuring instrument is improved.
Description
Technical Field
The utility model relates to a multi-parameter measurement module and multi-parameter measuring apparatu.
Background
The concentration of dust, the temperature and the concentration of harmful gas in a mine are important parameters for the safety operation under the coal mine, so that the concentration of dust and harmful gas in the mine and the environmental temperature parameters need to be frequently and accurately detected by adopting a corresponding measuring instrument during the production of the operation under the coal mine. In order to avoid the technical problems of inconvenient carrying and high labor intensity caused by carrying a dust measuring instrument, a temperature measuring instrument and a gas concentration measuring instrument at the same time, the gas concentration measuring function and the dust concentration detecting function or the temperature measuring function and the dust concentration measuring function are integrated on the same measuring instrument in the prior art.
The measuring instrument comprises a gas measuring device and a light source type dust measuring probe, wherein the gas measuring device is used for measuring gas concentration, and comprises a first shell and a gas sensor positioned in the first shell, correspondingly, the gas sensor is also provided with a gas inlet and a gas outlet, and the first shell is also provided with a display and an alarm for displaying a detection result and a switching signal interface connected with the display; the light source type dust measurement probe is provided with a second shell, and the second shell is provided with an airflow channel and a dust signal interface for detecting the dust concentration.
The device comprises a fine particle concentration detection device, a temperature and humidity detection device and the like, wherein the fine particle concentration detection device comprises a particle sampling cavity and an optical measurement system, the optical measurement system comprises a light source and a scattered light intensity detector which are correspondingly arranged, and the scattered light intensity detector is used for measuring the scattered intensity of fine particles in an air sample so as to determine the concentration of the fine particles in the air.
The measuring instrument integrates the dust concentration detection function and at least one other parameter detection function, effectively solves the problem that the measuring instrument is convenient to carry during multi-parameter measurement, but gradually increases the requirements on the detection precision of the measuring instrument along with the gradual increase of the safety requirement level of underground operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multi-parameter measurement module to satisfy the high requirement to measuring apparatu measurement accuracy in the actual production operation. An object of the utility model is also to provide a multi-parameter measurement appearance with above-mentioned multi-parameter measurement module.
The utility model discloses well multi-parameter measurement module adopts following technical scheme:
a multi-parameter measurement module comprising a measurement module housing; the laser dust detection module is arranged in the measuring module shell and comprises a light emitting unit and a light receiving unit, and an optical channel is arranged between the light emitting unit and the light receiving unit; a measuring channel which traverses the optical channel is also arranged in the measuring module shell, and the light emitting unit and the light receiving unit are respectively positioned at two opposite sides of the measuring channel; the measuring channel penetrates through the measuring module shell and is used for allowing air flow to pass through; the parameter measuring module is positioned in the middle of the optical channel and positioned between the light receiving unit and the measuring channel and comprises a gas concentration measuring module and/or a temperature measuring module, the parameter measuring module is provided with an optical trap structure, the gas concentration measuring module is used for detecting the gas concentration, the temperature measuring module is used for detecting the ambient temperature, and the optical trap structure is used for absorbing direct light.
The beneficial effects are that: the parameter measurement module is provided with an optical trap structure and can absorb strong light rays at the central part of the optical channel, so that the strong light rays are prevented from irradiating the light receiving unit to influence the accuracy of a measured result of the laser dust detection module, and meanwhile, the parameter measurement module is arranged in the optical channel of the laser dust detection module, so that the measurement module has the functions of measuring gas concentration and/or temperature and dust concentration, and a multi-parameter measuring instrument with the measurement module can accurately measure various gas parameters.
Furthermore, the parameter measurement module comprises a gas concentration measurement module, and an air inlet channel for external gas to flow to the gas concentration measurement module is arranged in the measurement module shell.
The beneficial effects are that: the gas inlet channel is specially arranged for the gas concentration measuring module, so that the measured ambient gas flows to the gas concentration measuring module conveniently, and the reaction speed and the use convenience of the multi-parameter measuring module are improved.
Further, the gas concentration measurement module comprises a gas sensor and a gas sensor signal acquisition board, and the gas sensor is detachably mounted on the gas sensor signal acquisition board.
The beneficial effects are that: when the concentration of different types of harmful gases needs to be measured, the gas sensor can be conveniently replaced by the gas sensor corresponding to the type of the measured gas.
Further, the air inlet channel is arranged on one side of the measuring channel close to the light receiving unit, and the air inlet of the air inlet channel and the opening of the detection channel face in the same direction.
The beneficial effects are that: when the measuring module is used for measuring the concentration of harmful gases and the concentration of dust, air in a measured environment can flow to the gas concentration measuring module through the air inlet channel when entering the detection channel, the two data are synchronously tested, and the use convenience of the measuring module is improved. Meanwhile, a straight light inlet of the optical trap structure is used as an air outlet, when external air enters the inner cavity of the optical trap through the air inlet channel, the original air in the inner cavity of the optical trap structure can be quickly discharged through the air outlet, the measuring module is guaranteed to have a high reaction speed, and meanwhile, the air outlet does not need to be formed for the space where the gas sensor is located, so that the measuring module has a compact structure.
Furthermore, a calibrating part used for plugging the air inlet channel and the measuring channel during zero calibration is further installed on the measuring module shell.
The beneficial effects are that: when the measurement module needs to be calibrated, the air inlet channel and the measurement channel are plugged by the calibration part, so that dust in the air can be prevented from entering the measurement channel, and the measurement module can be accurately calibrated.
Furthermore, the measuring module shell is columnar, and the correcting part is a baffle ring which is sleeved on the columnar shell and can move or rotate on the columnar shell.
The beneficial effects are that: the measurement module housing is arranged to be a cylindrical convenient calibration part.
Further, the air inlet of the air inlet channel is arranged close to one end hole of the measuring channel.
The beneficial effects are that: the air inlet of the air inlet channel is arranged close to the orifice at one end of the measuring channel, so that an operator can conveniently plug the air inlet of the air inlet channel and the orifice of the measuring channel at the same time.
Furthermore, the optical channel comprises single-section channels which are oppositely arranged on two sides of the measuring channel, each single-section channel comprises a circular hole section and a conical hole section, the small-diameter section of each conical hole section is connected with the circular hole section, the conical hole sections of the two single-section channels are opposite, the parameter measuring module is located in the conical hole section, and the radial size of the parameter measuring module is larger than the diameter of the circular hole section.
The beneficial effects are that: the round hole section of the single-section channel on the two sides is located on the two sides of the measuring channel, the round hole section is used for restraining light, laser can be enabled to irradiate on dust more to form scattered light, meanwhile, the conical hole section is arranged, the passing path of the scattered light is increased, the scattered light is enabled to be received by the light receiving unit, and the accuracy of the measuring instrument on the dust concentration measuring result is improved.
The utility model discloses well multi-parameter measuring apparatu adopts following technical scheme:
a multi-parameter measuring instrument comprising a measurement module housing; the laser dust detection module is arranged in the measuring module shell and comprises a light emitting unit and a light receiving unit, and an optical channel is arranged between the light emitting unit and the light receiving unit; a measuring channel which traverses the optical channel is also arranged in the measuring module shell, and the light emitting unit and the light receiving unit are respectively positioned at two opposite sides of the measuring channel; the measuring channel penetrates through the measuring module shell and is used for allowing air flow to pass through; the parameter measuring module is positioned in the middle of the optical channel, is positioned between the light receiving unit and the measuring channel, and comprises a gas concentration measuring module and/or a temperature measuring module, the parameter measuring module is provided with an optical trap structure, the gas concentration measuring module is used for detecting the gas concentration, the temperature measuring module is used for detecting the ambient temperature, and the optical trap structure is used for absorbing direct light; the control module is integrated with a control panel and a display screen; and a power supply module; the power supply module is electrically connected with the control module, and the control module is electrically connected with the measurement module.
The beneficial effects are that: the parameter measurement module is provided with an optical trap structure which can absorb strong straight light rays at the central part of the optical channel, so that the influence of the strong straight light rays on the light receiving unit on the accuracy of the result measured by the laser dust detection module is avoided, and the accuracy of the detection result of the multi-parameter measuring instrument is ensured. Meanwhile, the parameter measuring module is arranged in an optical channel of the laser dust detection module, so that the measuring module has the functions of measuring gas concentration and/or temperature and dust concentration, and the multi-parameter measuring instrument can accurately measure various gas parameters.
Furthermore, the parameter measurement module comprises a gas concentration measurement module, and an air inlet channel for external gas to flow to the gas concentration measurement module is arranged in the measurement module shell.
The beneficial effects are that: the gas inlet channel is specially arranged for the gas concentration measuring module, so that the measured ambient gas flows to the gas concentration measuring module conveniently, and the reaction speed and the use convenience of the multi-parameter measuring module are improved.
Further, the gas concentration measurement module comprises a gas sensor and a gas sensor signal acquisition board, and the gas sensor is detachably mounted on the gas sensor signal acquisition board.
The beneficial effects are that: when the concentration of different types of harmful gases needs to be measured, the gas sensor can be conveniently replaced by the gas sensor corresponding to the type of the measured gas, a plurality of multi-parameter measuring instruments do not need to be carried, and the labor intensity of operators is reduced.
Further, the air inlet channel is arranged on one side of the measuring channel close to the light receiving unit, and the air inlet of the air inlet channel and the opening of the detection channel face in the same direction.
The beneficial effects are that: when the measuring module is used for measuring the concentration of harmful gases and the concentration of dust, the air in the measured environment can flow to the gas concentration measuring module through the air inlet channel when entering the detection channel, the test of the two data is synchronously carried out, and the convenience of the use of the multi-parameter measuring instrument is improved. Meanwhile, a straight light inlet of the optical trap structure is used as a gas outlet, when external air enters the inner cavity of the optical trap through the air inlet channel, the original air in the inner cavity of the optical trap structure can be quickly discharged through the gas outlet, the measuring module is guaranteed to have a high reaction speed, the multi-parameter measuring instrument is enabled to have a high reaction speed, the gas outlet does not need to be formed in the space where the gas sensor is located, and the measuring module is enabled to have a compact structure.
Furthermore, a calibrating part used for plugging the air inlet channel and the measuring channel during zero calibration is further installed on the measuring module shell.
The beneficial effects are that: when the measurement module needs to be calibrated, the air inlet channel and the measurement channel are plugged by the calibration part, so that dust in the air can be prevented from entering the measurement channel, the measurement module can be accurately calibrated, and the use convenience of the multi-parameter measuring instrument is improved.
Furthermore, the measuring module shell is columnar, and the correcting part is a baffle ring which is sleeved on the columnar shell and can move or rotate on the columnar shell.
The beneficial effects are that: the shell of the measuring module is arranged to be a cylindrical convenient correcting part, so that the multi-parameter measuring instrument is convenient to produce and manufacture.
Further, the air inlet of the air inlet channel is arranged close to one end hole of the measuring channel.
The beneficial effects are that: the air inlet of the air inlet channel is arranged close to the orifice at one end of the measuring channel, so that an operator can conveniently plug the air inlet of the air inlet channel and the orifice of the measuring channel at the same time, and the convenience in use of gas parameter measurement is improved.
Furthermore, the optical channel comprises single-section channels which are oppositely arranged on two sides of the measuring channel, each single-section channel comprises a circular hole section and a conical hole section, the small-diameter section of each conical hole section is connected with the circular hole section, the conical hole sections of the two single-section channels are opposite, the parameter measuring module is located in the conical hole section, and the radial size of the parameter measuring module is larger than the diameter of the circular hole section.
The beneficial effects are that: the round hole section of both sides single-section passageway is located the both sides of measuring the passageway, utilizes the restraint of round hole section to light, ensures that laser can shine more and form the scattered light on the dust, simultaneously, sets up the taper hole section, increases the route that passes through of scattered light, ensures that scattered light can be received by the light receiving unit, carries the accuracy of gas parameter height measuring apparatu to dust concentration measurement result.
Furthermore, the power supply module, the control module and the measurement module are independent modules respectively and are provided with connection structures for realizing mechanical connection and power-on connection.
The beneficial effects are that: each module is independent, is convenient for wash the maintenance to measuring module dismantlement, simultaneously, also is convenient for change battery module for it is more convenient that multi-parameter measuring apparatu uses.
Drawings
Fig. 1 is a schematic view of the internal structure of an embodiment 1 of the multi-parameter measuring instrument of the present invention;
fig. 2 is a schematic diagram of the layout structure of the optical channel, the measurement channel and the air inlet channel of the measurement module in embodiment 1 of the multi-parameter measuring apparatus of the present invention;
fig. 3 is a schematic view of an external structure of an embodiment 1 of the multi-parameter measuring apparatus of the present invention;
FIG. 4 is a schematic structural diagram of an embodiment of a multi-parameter measurement module according to the present invention;
fig. 5 is a schematic view of the internal structure of an embodiment 5 of the multi-parameter measuring apparatus of the present invention;
fig. 6 is a schematic structural diagram of the arrangement of the temperature measuring modules in the embodiment 5 of the multi-parameter measuring apparatus in the optical channel according to the present invention;
in the figure: 1-measuring a module housing; 2-a gas concentration measurement module; 3-measuring the control mainboard; 4-a light emitting unit; 5-a lens group; 6-a detector; 7-an optical channel; 8-a measurement channel; 9-a gas sensor; 10-gas sensor signal acquisition board; 11-a baffle ring; 12-a battery module housing; 13-a battery pack; 14-a power management board; 15-aerial plug; 16-a control module housing; 17-a control panel; 18-a display screen; 19-enclosing plates; 20 circular hole sections; 21 a tapered bore section; 22-an intake passage; 23-straight light entry; 24-temperature measuring module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses a multi-parameter measuring instrument's embodiment 1, including measurement module, control module and power module, wherein, as shown in fig. 1, measurement module includes measurement module shell 1, installs laser dust detection module, parameter measurement module in the measurement module shell 1. In this embodiment with have dust concentration measurement function and gas concentration measurement function concurrently as the example right the utility model discloses well multi-parameter measuring apparatu introduces, and is concrete, and parameter measurement module includes gas concentration measurement module 2. The control module is internally provided with a measurement control main board 3.
Laser dust detection module is arranged in measuring the concentration of dust in the gas, and gas concentration measurement module 2 is arranged in measuring the concentration of harmful gas in the environment surveyed, makes the measuring apparatu have dust concentration and harmful gas concentration measuring's function simultaneously concurrently from this. During operation, an operator can measure the dust concentration and the harmful gas concentration in the measured environment only by carrying the measuring instrument. The multi-parameter measuring instrument can be applied to measurement of dust concentration and harmful gas in a coal mine, and can also be applied to other working environments such as chemical plants, in which the dust concentration and the harmful gas concentration in air need to be measured.
As shown in fig. 1, the laser dust detection module includes a light emitting unit 4 and a light receiving unit, wherein the light emitting unit 4 can emit laser after being powered on, the light receiving unit specifically includes a lens group 5 and a detector 6 for receiving laser, and meanwhile, the detector 6 is in communication connection with the measurement control main board 3 and can feed back information to the measurement control main board 3. An optical channel 7 for laser to pass through is also arranged between the light emitting unit 4 and the light receiving unit. The measuring module shell 1 is also internally provided with a measuring channel 8, and the measuring channel 8 traverses the optical channel 7 and penetrates through the measuring module shell 1 to form a passage for gas to pass through.
When the gas dust concentration measuring device works, the light emitting unit 4 is electrified to emit laser, the laser emits the laser to the light receiving unit along the optical channel 7, the laser meets dust particles in gas when passing through the intersection of the optical channel 7 and the measuring channel 8 and generates scattered light, the scattered light passes through the lens group 5 along a light path set by the optical channel 7 and is gathered on the detector 6, and the scattered light is fed back to the measuring control main board 3 through the detector 6 and is calculated through the measuring control main board 3 to obtain the concentration of the dust in the measured gas. How the laser dust detection module can measure the dust concentration in the gas belongs to the prior art, and a detailed description is not given here.
The specific structure of the optical channel 7 is as shown in fig. 1 and fig. 2, in this embodiment, the optical channel 7 includes single-section channels that are oppositely arranged at two sides of the measurement channel 8, each single-section channel includes a circular hole section 20 and a conical hole section 21, the small diameter section of the conical hole section 21 is connected with the circular hole section 20, and the conical hole sections 21 of the two single-section channels are arranged in opposite directions. The round hole sections 20 of the single-section channels on the two sides are located on the two sides of the measuring channel 8, the laser can be enabled to irradiate more dust to form scattered light by utilizing the constraint effect of the round hole sections 20 on the laser, meanwhile, the conical hole sections 21 are arranged, the passing path of the scattered light is increased, the scattered light can be enabled to be received by the detector 6, and the accuracy of the measuring instrument on the dust concentration measuring result is improved.
In other embodiments, each single-section channel can also be directly set as a conical section, the two conical sections are arranged oppositely, the opening of the conical section arranged close to the light emitting unit gradually decreases towards the measuring channel, and the opening of the conical section arranged close to the light receiving unit gradually increases along the direction back to the measuring channel, so that a wider passage is provided for scattered light. Of course, in the case where the laser beam is relatively thin, i.e., the diameter of the laser beam is smaller than that of the circular hole section, only the circular hole section may be provided without providing the tapered hole section.
The gas concentration measuring module 2 is arranged in the middle of the optical channel 7, is positioned between the lens group 5 and the light emitting unit 2, is specifically arranged in a taper hole section of the optical channel 7, and comprises a gas sensor 9, a gas sensor signal acquisition plate 10 and a light-tight coaming plate 19, wherein the coaming plate 19 is fixed on the gas signal acquisition plate 10 and forms an optical trap structure with an opening facing the light emitting unit 4 together with the gas sensor signal acquisition plate 10, and therefore the parameter measuring module has the optical trap structure. The optical trap structure has a straight light inlet 23, and strong straight light at the central portion of the light beam emitted by the light emitting unit 4 can be emitted into the inner cavity of the optical trap structure through the straight light inlet 23 and absorbed by the optical trap. In other embodiments, the gas concentration measurement module may be directly provided to have a groove structure, so that the gas concentration measurement module itself has an optical trap structure.
The gas sensor 9 is located in a cavity of the optical trap structure and can be detachably mounted on a gas sensor signal acquisition board 10, and during specific use, the corresponding type of gas sensor is mounted according to the type of harmful gas to be detected.
An air inlet channel 22 is further disposed in the measurement module housing, specifically located on one side of the measurement channel 8 close to the light receiving unit, and is communicated with the inner cavity of the optical trap structure, as shown by an arrow in fig. 2, measured ambient air can enter the inner cavity of the optical trap structure through the air inlet channel 22 to contact with the gas sensor 9, and original gas in the optical trap structure flows into the optical channel 7 through the straight light inlet 23. Because the inner cavity of the optical trap structure is small, the air around the gas sensor 9 can be quickly replaced by the air in the measured environment, and the reaction time of the gas sensor 9 is shortened. In other embodiments, in consideration of simplifying the structure of the measurement module, an air inlet channel may not be specially provided for the gas concentration measurement module, but an optical channel and a measurement channel are used as an air inlet passage, when the multi-parameter measurement instrument is used, external air enters from one end of the measurement channel and enters into the inner cavity of the optical trap structure through the optical channel, and original gas in the inner cavity of the optical trap flows out into the measurement channel through the optical channel and flows out from the other end of the measurement channel.
The gas sensor 9 can produce the electric current of corresponding size in the harmful gas environment of different concentrations to give the gas sensor signal acquisition board 10 with current signal feedback, the gas sensor signal acquisition board 10 feeds back corresponding current signal to measurement control mainboard 3 for voltage signal, voltage signal and the concentration of corresponding harmful gas in the environment of surveying are linear relation, the board that measures control mainboard 3 carries CPU and can reversely deduce the concentration of the harmful gas that will detect according to the size of gas sensor signal acquisition board 10 output voltage.
The gas sensor signal acquisition board 10 is also integrated with a temperature and pressure sensor, monitors the ambient temperature and pressure in real time, transmits temperature and pressure information to the measurement control main board 3, and the measurement control main board 3 corrects the concentration value of the measured harmful gas through an onboard CPU. How to correct the concentration value of the harmful gas according to the measured ambient temperature and pressure by the CPU carried by the measurement control main board 3 belongs to the prior art, and is not described herein again.
In order to ensure that the measuring instrument is convenient to use and can quickly and simultaneously measure the dust concentration and the air flow rate in the gas, in this embodiment, preferably, the air inlet of the air inlet channel 22 and the opening of the measuring channel 8 are in the same direction, so that the gas can quickly enter the air inlet channel and the measuring channel, a gas environment which is the same as the outside is quickly formed around the gas concentration measuring module 2 and in the measuring channel 8, and the reaction speed of the detector is improved.
Further, in order to facilitate zero calibration of the measuring instrument, in this embodiment, the measuring module housing 1 is further provided with a calibration component, and in order to facilitate the setting of the calibration component, meanwhile, in order to facilitate the holding of an operator, in the embodiment, the measuring module shell 1 is cylindrical, the calibration part is a baffle ring 11 which is sleeved on the cylindrical measuring module shell 1 and can slide along the axis of the measuring module shell 1 again, the baffle ring 11 has a shielding position and an avoiding position on the sliding stroke, when the baffle ring 11 is in the blocking position, the baffle ring blocks the two ends of the air inlet channel 22 and the measuring channel 8, a windless environment is created, the initial value of the measuring instrument is corrected, accurate measurement is realized, when the baffle ring is at the avoidance position, the baffle ring avoids the air inlet of the air inlet channel 22 and two ends of the measuring channel 8, so that air can smoothly enter the intake passage 22 and the measurement passage 8 to measure the parameters of the ambient air.
In other embodiments, the shape of the measurement module housing may be designed to be a corresponding shape according to actual requirements, for example, to facilitate stable placement of the measurement instrument on a plane and prevent the measurement instrument from rolling and breaking, the measurement instrument measurement module housing may be set to be a square column. Of course, in other embodiments, the measuring instrument may be taken to a dust-free environment for zero calibration, and if zero calibration is performed by this operation, a calibration part may not be provided on the measuring module of the measuring instrument.
In this embodiment, the inlet passage 22 is zigzag-shaped, so that the inlet of the inlet passage 22 is adjacent to the orifice of the measuring passage 8, and the inlet of the inlet passage 22 and the orifice of the measuring passage 8 can be simultaneously blocked by using a small-sized calibration part. In other embodiments, the gas intake passage may also be provided as a straight passage that is inclined toward the measurement passage from the position where the gas concentration measurement module is located.
As shown in fig. 3, the control module includes a control module housing 16 butted to the lower end of the measurement module housing 1, and in order to facilitate the operation of the measuring instrument and reading the measurement result, the control module further includes a control panel 17 and a display screen 18 installed on the control module housing 16, and the operation of switching, zeroing and the like can be performed on the measuring instrument by operating keys on the control panel. The display screen 18 is used for displaying the measurement result, so that an operator can directly know the parameters of the gas in the measured environment, the ambient temperature and the pressure.
The power supply module comprises a power supply module shell 12 butted on the lower side of a control module shell 16, a battery pack 13 arranged in the power supply module shell 12 and a power supply management board 14 arranged corresponding to the battery pack 13, the charging and discharging of the battery pack 13 are controlled, and the battery pack 13 supplies power to elements such as the measurement control main board 3 and the light emitting unit 4 through corresponding power supply lines. To charge the battery pack 13, the power module further includes an aerial receptacle 15 mounted on the underside of the power module housing 12, the aerial receptacle 15 being connected to the battery pack 13 so that the instrument can be charged using an external power source. In this embodiment, the battery pack 13 is an explosion-proof battery in order to enable the safe use of the measuring instrument in a coal mine.
In the whole working process, the measurement control main board 3 distributes the energy of the power supply to the gas concentration measurement module 2 and the light emitting unit 4 after being regulated on one hand, and receives signals fed back by the gas sensor signal acquisition board 10 and the detector 6 on the other hand.
In the embodiment, the measurement module, the control module and the power supply module are independent modules, the control module is in butt joint with the measurement module shell 1 through the control module shell 16 and is mechanically connected to the lower end of the measurement module, the connection mode can be plug-in connection, meanwhile, the control module and the measurement module are electrically connected to realize conductive communication and signal transmission communication between the two modules, and the electrical connection structure can be plug-in connection corresponding to the plug-in mechanical connection; the power supply module is in butt joint with the control module shell 16 through the power supply module shell 12 and is mechanically connected to the lower end of the control module, meanwhile, the control module is electrically connected with the power supply module to achieve conductive communication and signal transmission communication between the two modules, and the electric connection structure can be plug-in connection corresponding to the plug-in mechanical connection. The measurement module, the control module and the power supply module are independent modules, so that the measurement module can be conveniently detached for maintenance, and meanwhile, the power supply module can be conveniently replaced at any time. In other embodiments, the measurement module, the control module and the power supply module may not be independent structures, and the three modules share the same housing, and are electrically connected in the housing.
The utility model discloses embodiment 2 of well multi-parameter measurement appearance, different from embodiment 1, in this embodiment, the optical trap structure of parameter measurement module still can be for the bottle form light-absorbing piece, and gas sensor signal acquisition board are installed in the bottle form light-absorbing piece, and the bottle form light-absorbing piece is installed in the optical channel, and the bottleneck is towards the light emission unit for the strong straight light in the light beam middle part that the light emission unit sent can penetrate into the bottle form light-absorbing piece through the bottleneck. In other embodiments, the bottom of the bottle-shaped light absorbing member can be directly mounted on the gas sensor, and the bottle opening faces the light emitting unit.
The embodiment 3 of the multi-parameter measuring instrument of the present invention is different from the embodiment 1 in that in the embodiment 1, the calibration part has a shielding position and an avoiding position along the axial sliding of the measuring module housing, which aims to shield the corresponding measuring channel and the air inlet channel at the time of calibration through the position change of the calibration part to create a windless environment, in this embodiment, the calibration ring is rotatably installed on the measuring module housing around the axis of the measuring module housing, the calibration ring is provided with through holes corresponding to the measuring channel and the air inlet channel, when the calibration is required, the calibration ring is rotated to make the through holes on the calibration ring and the holes of the measuring channel and the air inlet channel on the measuring module housing circumferentially staggered along the measuring module housing, so as to use the calibration ring to shield the holes of the measuring channel and the holes of the air inlet channel on the measuring module housing, creating a windless environment, when the measuring instrument is required to perform the measuring operation, and then, rotating the zero calibration ring to enable the through hole on the zero calibration ring to be aligned with the orifice of the measurement channel and the air inlet of the air inlet channel on the measurement module shell along the circumferential direction of the measurement module shell.
The utility model discloses embodiment 4 of well multi-parameter measurement appearance, different from embodiment 1, in embodiment 1, the school part is for setting up the fender ring on the measuring module shell, keep off the ring when sheltering from the position, shelter from measuring channel's both ends mouth and inlet channel's import simultaneously, in this embodiment, the school part is for installing the baffle on the measuring module shell through the spout along measuring module shell axial direction, the baffle is in when sheltering from the position, shelter from inlet channel's air inlet and measuring channel's drill way, in order to build the windless environment so that the operator carries out the school zero to the measuring apparatu.
The utility model discloses embodiment 4 of well multi-parameter measuring instrument, the difference with embodiment 1 is that, in this embodiment, parameter measurement module is temperature measurement module 24, as shown in fig. 5, 6, temperature measurement module 24 constitutes the optical trap structure with bounding wall 19 for multi-parameter measuring instrument has dust concentration measurement function and ambient temperature measurement function concurrently. Of course, in other embodiments, the temperature measurement module may be directly configured to have a groove structure, such that the temperature measurement module itself has an optical trap structure. Of course, the parameter measurement module may include both a gas concentration measurement module and a temperature measurement module.
The utility model discloses well multi-parameter measurement module's embodiment, as shown in FIG. 4, the integration has laser dust to survey module, parameter measurement module and optical trap structure in this measurement module, and wherein, laser dust surveys the function that the module is arranged in realizing measurement module measuring gas medium dust density, and parameter measurement module is arranged in realizing that measurement module measures the function of other parameters in surveying the environment, and is specific, the utility model discloses well multi-parameter measurement module's structure, theory of operation and position relation are the same with above-mentioned each embodiment multi-parameter measurement instrument measurement module's structure and theory of operation in with, no longer give unnecessary details here.
The above description is only a preferred embodiment of the present application, and not intended to limit the present application, the scope of the present application is defined by the appended claims, and all changes in equivalent structure made by using the contents of the specification and the drawings of the present application should be considered as being included in the scope of the present application.
Claims (10)
1. A multiparameter measurement module, comprising:
a measurement module housing;
the laser dust detection module is arranged in the measuring module shell and comprises a light emitting unit and a light receiving unit, and an optical channel is arranged between the light emitting unit and the light receiving unit;
a measuring channel which traverses the optical channel is also arranged in the measuring module shell, and the light emitting unit and the light receiving unit are respectively positioned at two opposite sides of the measuring channel;
the measuring channel penetrates through the measuring module shell and is used for allowing air flow to pass through;
the parameter measuring module is positioned in the middle of the optical channel and positioned between the light receiving unit and the measuring channel and comprises a gas concentration measuring module and/or a temperature measuring module, the parameter measuring module is provided with an optical trap structure, the gas concentration measuring module is used for detecting the gas concentration, the temperature measuring module is used for detecting the ambient temperature, and the optical trap structure is used for absorbing direct light.
2. The multiparameter measurement module of claim 1, wherein the parameter measurement module comprises a gas concentration measurement module, and wherein an intake passage is provided in the measurement module housing for ambient gas to flow to the gas concentration measurement module.
3. A multiparameter measurement module according to claim 1 or 2, wherein the gas concentration measurement module comprises a gas sensor and a gas sensor signal acquisition board, the gas sensor being detachably mounted on the gas sensor signal acquisition board.
4. A multiparameter measuring module according to claim 2, wherein the air inlet channel is located on a side of the measuring channel adjacent to the light receiving unit, and an air inlet of the air inlet channel is oriented in the same direction as an opening of the detecting channel.
5. A multiparameter measuring module according to claim 4, wherein calibrating elements are also mounted on the measuring module housing for blocking the inlet channel and the measuring channel during calibration.
6. A multiparameter measuring module according to claim 5, wherein the measuring module housing is cylindrical and the calibration element is a stop ring that fits over and can move or rotate on the cylindrical housing.
7. A multiparameter measuring module according to claim 5, wherein the inlet of the inlet channel is disposed adjacent to an end opening of the measuring channel.
8. A multiparameter measuring module according to claim 1 or 2, wherein the optical channel comprises single-section channels disposed on opposite sides of the measuring channel, the single-section channels including a circular hole section and a tapered hole section, the tapered hole section having a smaller diameter section connected to the circular hole section, the tapered hole sections of the two single-section channels being opposite to each other, and the parameter measuring module being disposed in the tapered hole section and having a radial dimension greater than a diameter of the circular hole section.
9. A multi-parameter measuring instrument, comprising:
a measurement module, the measurement module being a multi-parameter measurement module of any one of claims 1-8;
the control module is integrated with a control panel and a display screen; and
a power supply module;
the power supply module is electrically connected with the control module, and the control module is electrically connected with the measurement module.
10. A multiparameter measuring instrument according to claim 9, wherein the power supply module, the control module and the measuring module are independent modules and are provided with connecting structures for mechanical and electrical connections.
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| CN202021698513.1U CN213301955U (en) | 2020-08-14 | 2020-08-14 | Multi-parameter measuring module and multi-parameter measuring instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116608750A (en) * | 2023-07-19 | 2023-08-18 | 陕西华达科技股份有限公司 | Interface size measuring device of radio frequency connector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116608750A (en) * | 2023-07-19 | 2023-08-18 | 陕西华达科技股份有限公司 | Interface size measuring device of radio frequency connector |
| CN116608750B (en) * | 2023-07-19 | 2023-10-31 | 陕西华达科技股份有限公司 | Interface size measuring device of radio frequency connector |
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