CN215871423U - Optical fiber communication equipment of time-of-flight mass spectrometer - Google Patents

Abstract

The utility model relates to an optical fiber communication device of a time-of-flight mass spectrometer. The optical fiber communication apparatus includes: an optical signal generating system and an optical signal receiving system. The optical signal receiving system is connected with the optical signal generating system through an optical fiber. Based on the structure, the digital level signal generated in the time-of-flight mass spectrometer can be converted into the optical signal by adopting the optical signal generating system, the optical signal can be reduced into the digital level signal by adopting the optical signal receiving system, and in the transmission process of the optical signal, the optical fiber is adopted, so that the reliability of signal routing in the time-of-flight mass spectrometer can be greatly improved due to low loss of optical fiber communication, and the optical fiber communication has the characteristic of electromagnetic interference resistance and is not influenced by an electromagnetic field and temperature, so that the effectiveness and the reliability of data transmission in the time-of-flight mass spectrometer can be further improved.

Description

Optical fiber communication equipment of time-of-flight mass spectrometer

Technical Field

The utility model relates to the field of optical fiber communication, in particular to optical fiber communication equipment of a time-of-flight mass spectrometer.

Background

The time-of-flight mass spectrometer is a novel soft ionization biological mass spectrum, and the instrument mainly comprises an MS main system, a sample introduction system and an auxiliary system. The MS main system consists of a mass analyzer and an ion source, and can generate high-voltage pulses when needing to work in a high-voltage electric field; the sample introduction system mainly comprises a target point camera shooting collection mechanism, a mobile platform and a target entering and exiting mechanism, and the part is controlled by data transmission and depends on the reliability and stability of the data transmission; the auxiliary system mainly comprises a vacuum system and a power supply, wherein the vacuum system is continuously operated by a molecular pump and a mechanical pump to maintain high vacuum degree, and the pumps can generate certain electromagnetic interference during operation. The switching power supply used for the power supply of the apparatus also generates electrical noise. The time-of-flight mass spectrometer needs to ensure the normal operation of instruments in a complex electrical environment, and the effectiveness and reliability of data transmission and communication must be ensured, but due to the influence of an electromagnetic field and temperature, the data transmission in the existing time-of-flight mass spectrometer has the defects of low reliability, poor effectiveness and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides optical fiber communication equipment of a time-of-flight mass spectrometer.

In order to achieve the purpose, the utility model provides the following scheme:

a fiber optic communication device for a time-of-flight mass spectrometer, comprising:

the optical signal generating system is connected with the MCU of the time-of-flight mass spectrometer and used for converting the digital level signal generated in the MCU into an optical signal;

and the optical signal receiving system is connected with the optical signal generating system through an optical fiber and is used for converting the received optical signal into a digital level signal.

Preferably, the optical signal generation system includes:

the Darlington tube is connected with the MCU and used for increasing the driving current;

and the photoelectric generator is connected with the Darlington tube and used for converting the digital level signal into an optical signal under the driving of the driving current.

Preferably, the photoelectric generator is internally provided with a lamp light source; the lamp light source is used for emitting light signals;

when the received digital level signal is 0, the light source is turned off; and when the received digital level signal is 1, the lamp light source is on.

Preferably, the darlington tube is model number SN 75451.

Preferably, the photoelectric generator is T-1528Z in model.

Preferably, the optical signal receiving system includes:

the photoelectric receiver is connected with the optical signal generating system through an optical fiber and used for receiving an optical signal;

and the photoelectric converter is connected with the photoelectric receiver and used for converting the received optical signal into a digital level signal.

Preferably, the model of the photoelectric receiver is R-2528Z.

Preferably, the system further comprises a serial port system;

and the serial port system is connected with the optical signal receiving system and is used for transmitting the converted digital level signal.

According to the specific embodiment provided by the utility model, the utility model discloses the following technical effects:

the optical fiber communication equipment of the time-of-flight mass spectrometer provided by the utility model can convert digital level signals generated in the time-of-flight mass spectrometer into optical signals by adopting the optical signal generating system, can restore the optical signals into the digital level signals by adopting the optical signal receiving system, and adopts the optical fibers in the transmission process of the optical signals, so that the reliability of signal routing in the time-of-flight mass spectrometer can be greatly improved due to low loss of optical fiber communication, and the optical fiber communication has the characteristic of electromagnetic interference resistance and is not influenced by an electromagnetic field and temperature, so that the effectiveness and reliability of data transmission in the time-of-flight mass spectrometer can be further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a block diagram of a fiber optic communication device of a time-of-flight mass spectrometer provided by the present invention;

FIG. 2 is a schematic circuit diagram of a Darlington tube and a photovoltaic generator according to the present invention;

fig. 3 is a schematic circuit diagram of the photoelectric receiver according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model aims to provide optical fiber communication equipment of a time-of-flight mass spectrometer, so as to improve the effectiveness and reliability of data transmission in the time-of-flight mass spectrometer.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1, the optical fiber communication device of the time-of-flight mass spectrometer provided by the present invention includes: an optical signal generating system and an optical signal receiving system.

The optical signal generating system is connected with the MCU of the time-of-flight mass spectrometer and is mainly used for converting the digital level signal generated in the MCU into an optical signal.

The optical signal receiving system is connected with the optical signal generating system through an optical fiber and is mainly used for converting the received optical signals into digital level signals.

Further, the optical signal generation system preferably includes: a Darlington tube and a photoelectric generator.

The Darlington tube is connected with the MCU and mainly used for increasing the driving current. The photoelectric generator is connected with the Darlington tube and used for converting the digital level signal into an optical signal under the driving of the driving current. The circuit connection principle of the darlington tube and the photoelectric generator is shown in fig. 2.

The reason why the Darlington tube is adopted in the utility model is that when the photoelectric generator with the model number of T-1528Z is selected, the driving current is dozens of mA, and a common gate circuit cannot be driven at all. Therefore, a darlington tube is used to increase the drive current. The darlington tube used in the present invention is preferably SN 75451.

Further, one or more light sources may be built into the photovoltaic generator for emitting light signals.

When the received digital level signal is 0, the light source is turned off. When the received digital level signal is 1, the light source is on. The light source of the lamp is turned on or off to replace a 0 or 1 signal of a digital level, so that the equipment cost is reduced, the equipment structure is simplified, and meanwhile, the timeliness of optical signal transmission is provided.

Further, the optical signal receiving system includes: a photoelectric receiver and a photoelectric converter.

The photoelectric receiver is connected with the optical signal generating system through an optical fiber and used for receiving optical signals. The model of the photoelectric receiver adopted in the utility model is preferably R-2528Z, and the specific circuit principle is shown in FIG. 3.

The photoelectric converter is connected with the photoelectric receiver and used for converting the received optical signal into a digital level signal.

In addition, in order to facilitate data transmission with other peripheral equipment or other serial devices in the time-of-flight mass spectrometer, the optical fiber communication equipment of the time-of-flight mass spectrometer provided by the utility model is also provided with a serial system. And the serial port system is connected with the optical signal receiving system and used for transmitting the converted digital level signal to other peripheral equipment or other serial port equipment in the time-of-flight mass spectrometer.

The following describes a specific operation principle of the optical fiber communication device according to the present invention based on the circuit principle shown in fig. 2 and 3.

The MCU is also a device with a serial port, and the serial devices are provided with a transmitting end USART _ TXD and a receiving end USART _ RXD. Information on the transmitting end USART _ TXD is transmitted as a digital level signal to the linton tube U67. The light source built in the photoelectric generator U66 replaces the 0 or 1 signal of the digital level by turning on and off, so that after the photoelectric receiver U68 is driven to receive the digital level signal, the photoelectric converter converts the digital level signal into an optical signal for transmission. Wherein the optical signal is transmitted in the optical fiber from the photo-generator end to the photo-receiver end. The photoelectric converter is arranged in the photoelectric receiver U68, and converts the received optical signal into a digital level signal 0 or 1. And then the converted digital level signal is transmitted to the receiving end of another serial device, so that the information of the serial device is completely transmitted to the other serial device.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.

Claims (8)

1. A fiber optic communication device for a time-of-flight mass spectrometer, comprising:

the optical signal generating system is connected with the MCU of the time-of-flight mass spectrometer and used for converting the digital level signal generated in the MCU into an optical signal;

and the optical signal receiving system is connected with the optical signal generating system through an optical fiber and is used for converting the received optical signal into a digital level signal.

2. The fiber optic communication device of claim 1, wherein the optical signal generation system comprises:

the Darlington tube is connected with the MCU and used for increasing the driving current;

and the photoelectric generator is connected with the Darlington tube and used for converting the digital level signal into an optical signal under the driving of the driving current.

3. The fiber optic communication device of claim 2, wherein the photo generator has a light source built therein; the lamp light source is used for emitting light signals;

when the received digital level signal is 0, the light source is turned off; and when the received digital level signal is 1, the lamp light source is on.

4. The fiber optic communication device of claim 2, wherein said darlington tube is model number SN 75451.

5. The fiber optic communication device of claim 2, wherein the photovoltaic generator is of type T-1528Z.

6. The fiber optic communication device of claim 1, wherein the optical signal receiving system comprises:

the photoelectric receiver is connected with the optical signal generating system through an optical fiber and used for receiving an optical signal;

and the photoelectric converter is connected with the photoelectric receiver and used for converting the received optical signal into a digital level signal.

7. The fiber optic communication device of claim 6, wherein the opto-electronic receiver is of the type R-2528Z.

8. The fiber optic communication device of a time-of-flight mass spectrometer of claim 1, further comprising a serial port system;

and the serial port system is connected with the optical signal receiving system and is used for transmitting the converted digital level signal.

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