CN216082616U

CN216082616U - Real-time monitoring system for sample allowance in sample tray

Info

Publication number: CN216082616U
Application number: CN202121606007.XU
Authority: CN
Inventors: 戴冕
Original assignee: Fuyi Heqi Nanjing Instrument Technology Co ltd
Current assignee: Fuyi Heqi Nanjing Instrument Technology Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-03-18
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses a real-time monitoring system for sample allowance in a sample disc, which comprises a spring, wherein a clamping seat is arranged at the top of the spring, the bottom of the spring is connected with a pressure sensing system, a high-precision signal amplifying circuit matched with the pressure sensing system is arranged in the pressure sensing system, and the pressure sensing system is connected with a computer acquisition system through a bus. The utility model monitors the sample allowance in the sample plate in real time by using a pressure sensing mode, amplifies the signal and transmits the amplified signal to a computer acquisition system which is automatically set with a sample allowance warning line according to the actual experimental condition, and when the monitored sample allowance reaches the warning line, a short message sending module in the computer acquisition system reminds an experimenter of adding the sample amount by sending a short message, so that the experimenter can smoothly complete the experiment and the experimental efficiency is improved.

Description

Real-time monitoring system for sample allowance in sample tray

Technical Field

The utility model relates to the technical field of chromatographs, in particular to a real-time monitoring system for sample allowance in a sample tray.

Background

In a liquid chromatograph, an autosampler is a very important unit to reduce the use of manpower in the operation of the instrument, so that the instrument can independently sample, sample and analyze without being attended, and complete part of the work which needs a skilled operator before. In the in-service use process, often need take a sample many times in same sample bottle, do the different concentration gradient tests of sample, often can appear not accurately calculate under the condition that needs the sample total amount, in the later stage of whole experiment, the sample surplus is not enough, appears and leads to the unable smooth condition of accomplishing of whole experiment.

Disclosure of Invention

The utility model aims to provide a real-time monitoring system for sample surplus in a sample tray, which can monitor the sample surplus in the sample tray in real time, set a warning line according to actual conditions and provide early warning for experimenters when the sample amount is insufficient.

The technical scheme adopted by the utility model is as follows:

the utility model provides a real-time supervision system of sample surplus in sample dish, it includes the spring, and the cassette is installed at the spring top, and the spring bottom is connected with pressure sensing system, is equipped with the high accuracy signal amplification circuit who matches with it in the pressure sensing system, and pressure sensing system has the computer acquisition system through bus connection.

In the sample bottle placing hole of this system's cassette cunning on the sample dish, the draw-in groove of placing the sample bottle is seted up at the top of cassette.

The clamping seat of the system is of a cylindrical structure, and the clamping seat is made of insulating plastics.

The pressure sensing system of the system is arranged on a supporting plate, and two ends of the supporting plate are fixedly connected with the bottom surface of a sample tray through a support.

The pressure sensing system of the system comprises a pressure sensor, wherein the sensing surface of the pressure sensor is connected with a spring, and the pressure sensor is connected with a high-precision signal amplifying circuit through a line.

The computer acquisition system of the system comprises a single-chip microcontroller and a short message sending module, wherein the single-chip microcontroller is respectively connected with a high-precision signal amplification circuit and the short message sending module through circuits.

The computer acquisition system of the system is internally provided with a 16-bit or 24-bit AD converter or an external 16-bit or 24-bit AD converter.

The utility model has the following beneficial effects: the utility model installs the monitoring system in the sample bottle placing hole on the sample plate, monitors the sample allowance in the sample plate in real time by using a pressure induction mode, amplifies the signal and transmits the amplified signal to the computer acquisition system which is automatically set up a sample allowance warning line according to the actual experimental condition, when the monitored sample allowance reaches the warning line, the short message sending module in the computer acquisition system reminds the experimenter to add the sample amount by sending a short message, so that the experimenter can smoothly complete the experiment, the unattended function of the automatic sample injector can be further improved, the manpower is greatly released, and the experimental efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

figure 1, spring; 2. a card holder; 3. a pressure sensing system; 4. a high-precision signal amplification circuit; 5. a computer acquisition system; 6. a card slot; 7. a support plate; 8. a support; 9. and a short message sending module.

Detailed Description

The utility model will be further described with reference to the accompanying drawings in which:

as shown in figure 1, the sample bottle fixing device comprises a spring 1, a clamping seat 2 which is made of insulating plastics and is of a cylindrical structure is installed at the top of the spring 1, the clamping seat 2 is slidably arranged in a sample bottle placing hole in a sample plate, and a clamping groove 6 for placing a sample bottle is formed in the top of the clamping seat 2, so that the sample bottle can be better fixed, and the sample bottle is prevented from shaking along with a shadow to influence a monitoring effect.

The bottom of the spring 1 of the system is connected with a pressure sensing system 3, a high-precision signal amplifying circuit 4 matched with the pressure sensing system is arranged in the pressure sensing system 3, the pressure sensing system 3 comprises a pressure sensor, the sensing surface of the pressure sensor is connected with the spring 1 and used for sensing the residual quantity in a sample bottle placed on the clamping seat 2 in real time, and the pressure sensor is connected with the high-precision signal amplifying circuit 4 through a circuit.

In the in-service use process, often need sample many times in same sample bottle, but the volume of sampling at every turn is unset, and pressure sensor connects high accuracy signal amplification circuit 4 and can enlarge some slight response signals to do not influence the degree of accuracy of monitoring, the follow-up experiment of being convenient for can accomplish smoothly. The pressure sensing system 3 is arranged on a support plate 7, and two ends of the support plate 7 are fixedly connected with the bottom surface of the sample tray through a support 8.

The pressure sensing system 3 of the system is connected with a computer acquisition system 5 through a bus, the computer acquisition system 5 comprises a single-chip microcontroller and a short message sending module 9, a sample allowance warning line can be preset according to experiment requirements, the single-chip microcontroller is respectively connected with a high-precision signal amplification circuit 4 and the short message sending module 9 through circuits, a 16-bit or 24-bit AD converter is arranged in the computer acquisition system 5 or is externally connected with the 16-bit or 24-bit AD converter and used for converting received amplified pressure induction electric signals into digital signals which can be output to the short message sending module 9, and then the short message sending module 9 processes the signals and informs an experimenter through a short message mode.

The using process of the utility model is as follows:

before using, install cassette 2 at spring 1 top earlier, spring 1 bottom is connected with the response face of the pressure sensor in the pressure sensing system 3, and pressure sensing system 3 fixed mounting is in backup pad 7 simultaneously, in placing the hole with the sample bottle that cassette 2 set up on the sample dish after that, then backup pad 7 both ends through the support 8 and the sample dish bottom surface rigid coupling of suitable length, ensure that spring 1 does not take place any deformation, be connected pressure sensing system 3 with computer acquisition system 5 through the bus at last.

When the device is used, firstly, a sample bottle filled with a sample amount is placed on the clamping seat 2, after the device samples in the sample bottle, the pressure sensor senses the deformation of the spring 1 and transmits a sensing signal to the high-precision signal amplifying circuit 4, particularly, the signal is transmitted to a single-chip microcontroller in a computer acquisition system after being amplified, and the single-chip microcontroller receives and processes the signal and compares the signal with a sample allowance warning line preset in the single-chip microcontroller; if the residual amount of the sample does not reach the warning line, the compared signal does not need to be transmitted to the short message sending module 9; if the residual quantity warning line of the sample is reached, the compared signal is transmitted to the short message sending module 9 for processing, and after the processing is finished, the experimenter is informed to add the sample quantity into the sample bottle in a short message mode.

Other undescribed portions of the present invention are the same as the prior art.

Claims

1. The utility model provides a real-time monitoring system of sample surplus in sample dish, its characterized in that includes spring (1), cassette (2) are installed at spring (1) top, spring (1) bottom is connected with pressure sensing system (3), be equipped with in pressure sensing system (3) with it matched with high accuracy signal amplification circuit (4), pressure sensing system (3) have computer acquisition system (5) through bus connection.

2. The system for real-time monitoring of the residual amount of the samples in the sample plate according to claim 1, wherein the clamping seat (2) is slidably disposed in a sample bottle placing hole on the sample plate, and a clamping groove (6) for placing the sample bottle is formed at the top of the clamping seat (2).

3. The system for real-time monitoring of the sample allowance in the sample plate as claimed in claim 1, wherein the clamping seat (2) is a cylindrical structure, and the clamping seat (2) is made of insulating plastic.

4. The system for real-time monitoring of the sample balance in a sample plate according to claim 1, wherein the pressure sensing system (3) is mounted on a support plate (7), and both ends of the support plate (7) are fixedly connected with the bottom surface of the sample plate through a bracket (8).

5. The system for real-time monitoring of the sample balance in the sample plate according to claim 1, wherein the pressure sensing system (3) comprises a pressure sensor, the sensing surface of the pressure sensor is connected with the spring (1), and the pressure sensor is connected with the high-precision signal amplifying circuit (4) through a line.

6. The system for monitoring the sample allowance in the sample tray according to claim 1, wherein the computer acquisition system (5) comprises a single-chip microcontroller and a short message sending module (9), and the single-chip microcontroller is respectively connected with the high-precision signal amplification circuit (4) and the short message sending module (9) through lines.

7. The system for real-time monitoring of the sample balance in a sample plate as claimed in claim 1, wherein the computer collection system (5) is internally provided with a 16-bit or 24-bit AD converter or is externally connected with a 16-bit or 24-bit AD converter.