1. An 8 passageway electron number grain sensor which characterized in that: comprises a bottom plate (1), side plates (2) arranged at the left side and the right side of the bottom plate (1), a front vertical plate (3) arranged at the front side of the bottom plate (1), a rear vertical plate (4) arranged at the rear side of the bottom plate (1) and an upper cover plate (5) arranged above the bottom plate (1);

the upper cover plate (5) and the bottom plate (1) are uniformly provided with 8 channels (6) which are matched with each other, one end of each channel (6) is provided with a transmitting circuit board (7), the other end of each channel (6) is provided with a receiving circuit board (8), the outer sides of the channels (6) between adjacent channels (6) and at two ends are provided with an inner vertical plate (9) and an outer vertical plate (10), the inner vertical plate (9) is positioned between the bottom plate (1) and the upper cover plate (5), the outer vertical plate (10) is positioned at the outer side of the upper cover plate (5), the front end of the inner vertical plate (9) is provided with a front mounting plate (11), the rear end of the inner vertical plate (9) is provided with a rear mounting plate (12), a power supply conversion and output signal isolation amplifying circuit board (13) is arranged between the bottom plate (1) and the upper cover plate (5), the upper cover, the base plate (1) is provided with a socket board (15), the transmitting circuit board (7), the receiving circuit board (8) and the power conversion and output signal isolation amplifying circuit board (13) are electrically connected, the power and signal output interface circuit board (14) are installed on the socket board (15), and the power conversion and output signal isolation amplifying circuit board (13) and the power and signal output interface circuit board (14) are electrically connected.

2. An 8-channel electronic particle counting sensor according to claim 1, wherein: a front cover plate (16) is arranged between the upper cover plate (5) and the front vertical plate (3), the bottom plate (1), the side plate (2), the front vertical plate (3), the rear vertical plate (4), the upper cover plate (5) and the front cover plate (16) are matched to form a complete shell, and a rectangular groove is formed in the position of the front cover plate (16).

3. An 8-channel electronic particle counting sensor according to claim 1, wherein: the bottom plate (1) is fixedly connected with the side plate (2), the bottom plate is fixedly connected with the front vertical plate (3), the bottom plate (1) is fixedly connected with the rear vertical plate (4), the upper cover plate (5) is fixedly connected with the side plate (2), and the upper cover plate (5) is fixedly connected with the rear vertical plate (4) through bolts.

4. An 8-channel electronic particle counting sensor according to claim 2, wherein: the front cover plate (16) is fixedly connected with the upper cover plate (5) through bolts, and the front cover plate (16) is fixedly connected with the front vertical plate (3) through bolts.

5. An 8-channel electronic particle counting sensor according to claim 1, wherein: the inner vertical plate (9) is fixedly connected with the front mounting plate (11) and the inner vertical plate (9) is fixedly connected with the rear mounting plate (12) through bolts.

Background

One of the technical cores of the particle counting machine is a photoelectric particle counting sensor which is installed for emitting and receiving infrared rays, a particle counting detection channel is arranged in the photoelectric particle counting sensor, when particles pass through the detection channel, the infrared rays of an emitting end are blocked, the corresponding receiving end can detect the pulse change of an infrared ray signal, the changed pulse is transmitted to a receiving plate to be conditioned and processed by an application program in a CPU, the pulse signal is identified and judged through a specific algorithm and a basic model, the corresponding particles are output in real time to pass through a signal of a detection window, the whole structure of the existing photoelectric particle counting sensor is generally designed according to a certain product, the applicability is poor, the particle counting efficiency is not high, the precision is low, and the particle counting sensor is easy to damage.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the technology and provide an 8-channel electronic particle counting sensor.

In order to solve the technical problems, the technical scheme provided by the invention is an 8-channel electronic particle counting sensor: comprises a bottom plate, side plates arranged at the left side and the right side of the bottom plate, a front vertical plate arranged at the front side of the bottom plate, a rear vertical plate arranged at the rear side of the bottom plate and an upper cover plate arranged above the bottom plate; the upper cover plate and the bottom plate are uniformly provided with 8 mutually matched channels, one end of each channel is provided with a transmitting circuit board, the other end of the channel is provided with a receiving circuit board, an inner vertical plate and an outer vertical plate are arranged between adjacent channels and on the outer side of the channel at the two ends, the inner vertical plate is positioned between the bottom plate and the upper cover plate, the outer vertical plate is positioned outside the upper cover plate, the front end of the inner vertical plate is provided with a front mounting plate, the rear end of the inner vertical plate is provided with a rear mounting plate, a power supply conversion and output signal isolation amplification circuit board is arranged between the bottom plate and the upper cover plate, a power supply and signal output interface circuit board is arranged on the upper cover plate, the base plate is provided with a socket board, the transmitting circuit board and the receiving circuit board are electrically connected with the power supply conversion and output signal isolation amplifying circuit board, the power supply and signal output interface circuit board is arranged on the socket board, and the power supply conversion and output signal isolation amplification circuit board is electrically connected with the power supply and signal output interface circuit board.

As an improvement, a front cover plate is arranged between the upper cover plate and the front vertical plate, the bottom plate, the side plates, the front vertical plate, the rear vertical plate, the upper cover plate and the front cover plate are matched to form a complete shell, and a rectangular groove is formed in the front cover plate of the shell.

As an improvement, the bottom plate and the side plate, the bottom plate and the front vertical plate, the bottom plate and the rear vertical plate, the upper cover plate and the side plate, and the upper cover plate and the rear vertical plate are fixedly connected through bolts.

As an improvement, the front cover plate is fixedly connected with the upper cover plate through a bolt, and the front cover plate is fixedly connected with the front vertical plate through a bolt.

As an improvement, the inner vertical plate is fixedly connected with the front mounting plate and the inner vertical plate is fixedly connected with the rear mounting plate through bolts.

Compared with the prior art, the invention has the advantages that: the invention is provided with 8 channels, can realize rapid grain counting, has high precision and reasonable structure, can be installed on various equipment, has strong applicability, is not easy to damage and has long service life.

Drawings

FIG. 1 is a schematic structural diagram 1 of an 8-channel electronic particle counting sensor according to the present invention.

FIG. 2 is a schematic structural diagram of an 8-channel electronic particle counting sensor according to the present invention 2.

FIG. 3 is a schematic structural diagram of an 8-channel electronic particle counting sensor according to the present invention, FIG. 3.

FIG. 4 is a cross-sectional view of an 8-channel electronic particle counting sensor in accordance with the present invention.

As shown in the figure: 1. the base plate, 2, curb plate, 3, preceding riser, 4, back riser, 5, upper cover plate, 6, passageway, 7, transmission circuit board, 8, receiving circuit board, 9, interior riser, 10, outer riser, 11, preceding mounting panel, 12, back mounting panel, 13, power conversion and output signal keep apart amplifier circuit board, 14, power and signal output interface circuit board, 15, socket board, 16, front cover plate.

Detailed Description

The 8-channel electronic particle counting sensor of the present invention will be further described in detail with reference to the accompanying drawings.

With reference to fig. 1-4, an 8-channel electronic particle counting sensor comprises a bottom plate 1, side plates 2 arranged on the left and right sides of the bottom plate 1, a front vertical plate 3 arranged on the front side of the bottom plate 1, a rear vertical plate 4 arranged on the rear side of the bottom plate 1, and an upper cover plate 5 arranged above the bottom plate 1; the upper cover plate 5 and the bottom plate 1 are uniformly provided with 8 channels 6 which are mutually matched, one end of each channel 6 is provided with a transmitting circuit board 7, the other end of each channel 6 is provided with a receiving circuit board 8, the outer sides of the channels 6 positioned between the adjacent channels 6 and at the two ends are respectively provided with an inner vertical plate 9 and an outer vertical plate 10, the inner vertical plate 9 is positioned between the bottom plate 1 and the upper cover plate 5, the outer vertical plate 10 is positioned at the outer side of the upper cover plate 5, the front end of the inner vertical plate 9 is provided with a front mounting plate 11, the rear end of the inner vertical plate 9 is provided with a rear mounting plate 12, a power conversion and output signal isolation amplifying circuit board 13 is arranged between the bottom plate 1 and the upper cover plate 5, the upper cover plate 5 is provided with a power and signal output interface circuit board 14, the bottom plate 1 is provided with a socket plate 15, and the transmitting circuit board 7 and the receiving circuit board 8 are electrically connected with the power conversion and output signal isolation amplifying circuit board 13, the power and signal output interface circuit board 14 is mounted on the socket board 15, and the power conversion and output signal isolation and amplification circuit board 13 is electrically connected to the power and signal output interface circuit board 14.

A front cover plate 16 is arranged between the upper cover plate 5 and the front vertical plate 3, the bottom plate 1, the side plates 2, the front vertical plate 3, the rear vertical plate 4, the upper cover plate 5 and the front cover plate 16 are matched to form a complete shell, and a rectangular groove is formed in the front cover plate 16 of the shell.

The bottom plate 1 and the side plate 2, the bottom plate and the front vertical plate 3, the bottom plate 1 and the rear vertical plate 4, the upper cover plate 5 and the side plate 2, and the upper cover plate 5 and the rear vertical plate 4 are fixedly connected through bolts.

The front cover plate 16 is fixedly connected with the upper cover plate 5 through bolts, and the front cover plate 16 is fixedly connected with the front vertical plate 3 through bolts.

The inner vertical plate 9 is fixedly connected with the front mounting plate 11, and the inner vertical plate 9 is fixedly connected with the rear mounting plate 12 through bolts.

When the particle counting device is implemented concretely, an 8-channel electronic particle counting sensor is installed on a particle counting machine, materials enter a channel 6 from an outer vertical plate 10, when particles pass through the channel 6, infrared rays emitted by an infrared emitting diode in an emitting circuit board 7 are shielded, pulse changes of infrared signals can be detected by an infrared receiving tube on a corresponding channel in a corresponding receiving circuit board 8, the signals are processed by signal conditioning and application programs in a CPU (central processing unit) in the receiving circuit board 8, the pulse signals are identified and judged by adding a self-adaptive anti-dust algorithm and comparing and analyzing with a model database, real-time output signals are sent to a signal amplification board 13 for isolated amplification, and are output to a processing device on the particle counting machine through a power supply and a signal output interface circuit board 14 for counting and recording.

The invention is provided with 8 channels, can realize rapid grain counting, has high precision and reasonable structure, can be installed on various equipment, has strong applicability, wide working voltage range, good dust resistance effect, difficult damage and long service life.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.