An off-line testing system for a nuclear scale

Abstract

The utility model discloses an offline test system of nuclear scale belongs to nuclear scale debugging device field, solves the problem that the existing nuclear scale spare parts cannot be directly detected and the online test environment is inconvenient to test. The utility model discloses an offline test system of nuclear scale belongs to nuclear scale debugging device field, solves the problem that the existing nuclear scale spare parts cannot be directly detected and the online test environment is inconvenient to test. The utility model discloses an offline test system of nuclear scale belongs to nuclear scale debugging device field, solves the problem that the existing nuclear scale spare parts cannot be directly detected and the online test environment is inconvenient to test. The utility model discloses an offline test system of nuclear scale belongs to nuclear scale debugging device field, solves the problem that the existing nuclear scale spare parts cannot be directly detected and the online test environment is inconvenient to test. The utility model discloses an offline test system of nuclear scale belongs to nuclear scale debugging device field, solves the problem that the existing nuclear scale spare parts cannot be directly detected and the online test environment is inconvenient to test.

Description

Technical Field

[0001] This utility model belongs to the field of nuclear scale debugging equipment, specifically relating to an offline testing system for nuclear scales. Background Technology

[0002] The nuclear scales used in the factory are mainly used for batching process metering control. The nuclear scale consists of a nuclear radiation source, an ionization chamber detector, a preamplifier board, a power supply board, and secondary display instruments. The amount of material is detected by the degree of attenuation of nuclear rays through the material. Therefore, the normal operation of the four components—ionization chamber, preamplifier board, power supply board, and secondary instruments—is inseparable from the irradiation of the nuclear radiation source, which makes daily offline testing difficult.

[0003] Currently, because the nuclear scale's radiation source and ionization chamber are installed on-site, to complete the system connection test of the nuclear scale's secondary instruments, preamplifier board, and power board, these devices must be transported to the site and connected to the signals generated by the on-site radiation source and ionization chamber to complete the online system test. However, due to the long-term operation of the online equipment, this online test cannot achieve the purpose of stopping the online equipment to test each component. Therefore, when a fault occurs on-site, only the spare parts are replaced to solve the problem. Moreover, there is no systematic testing method to check whether the replaced secondary instruments, preamplifier boards, and power boards are functioning properly. Utility Model Content

[0004] This invention provides an offline testing system for nuclear scales to solve the problems of existing nuclear scale spare parts not being able to be directly tested and the inconvenience of online testing environments.

[0005] The technical solution of this utility model is: an offline testing system for a nuclear scale, including a preamplifier assembly, a secondary instrument, and a power board. The secondary instrument and the power board are respectively connected to the preamplifier assembly. The system also includes a test resistor and a power supply connected in series. Signal output terminals are led out from both sides of the test resistor and the power supply and connected to the signal input port of the preamplifier assembly.

[0006] The beneficial effects of this invention are as follows: This invention generates a weak signal through a power supply and a test resistor, providing a signal source for the preamplifier component. The signal characteristics are the same as those received by the ionization chamber. Through the power board and secondary instruments connected to the preamplifier component, an offline testing system for the nuclear scale is constructed, enabling offline testing of various spare parts of the nuclear scale. Data analysis from the secondary instruments allows for the debugging of spare parts usage methods. The testing process is free from other interference sources, ensuring accurate and clear test data, and meeting the requirements for stable testing. This invention operates stably and provides accurate data. It allows for spare part testing in equipment maintenance rooms, uses common electronic components to generate signals, and achieves offline joint debugging of the nuclear scale's secondary instruments, preamplifier board, and power board, making it highly applicable. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model.

[0008] In the diagram: 1. Preamplifier assembly; 2. Secondary instrument; 3. Power supply board; 4. Test resistor; 5. Power supply; 6. Signal input connector; 7. Signal output terminal. Detailed Implementation

[0009] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0010] like Figure 1 As shown, an offline testing system for a nuclear scale includes a preamplifier 1, a secondary instrument 2, and a power board 3. The secondary instrument 2 and the power board 3 are respectively connected to the preamplifier 1. The system also includes a test resistor 4 and a power supply 5 connected in series. Signal output terminals 7 are led out from both sides of the test resistor 4 and the power supply 5 and connected to the signal input port 6 of the preamplifier 1.

[0011] In use, power supply 5 is connected in series with test resistor 4, and the leads on both sides of the series connection are used as signal output terminals 7. The signal output terminals 6 on both sides are connected to the signal input port 7 of the preamplifier assembly 1. The signal input port 7 is originally the receiving end of the ionization chamber signal. After power supply 5 and test resistor 4 are connected in series, a weak signal will be emitted to simulate the ionization chamber signal, so as to test the status of each spare part of the nuclear scale in offline state. Connect secondary instrument 2 and power board 3 to preamplifier assembly 1 respectively. After confirming that the wiring is correct, power supply 5 is turned on to perform offline testing. The signal is released to preamplifier assembly 1 through power supply 5 and test resistor 4. The test data is transmitted to secondary instrument 2 through the circuit. The data displayed by secondary instrument 2 realizes the testing of each spare part. Secondary instrument 2 displays a stable mass count and accurate test results, completing an offline testing system that does not require the participation of a radiation source and ionization chamber, which can be completed in the equipment maintenance room.

Claims

1. An offline testing system for a nuclear scale, comprising a preamplifier assembly (1), a secondary instrument (2), and a power board (3) for the nuclear scale, wherein the secondary instrument (2) and the power board (3) are respectively connected to the preamplifier assembly (1), characterized in that: It also includes a series test resistor (4) and a power supply (5), with signal output terminals (7) led out from both sides of the series test resistor (4) and the power supply (5) respectively, and connected to the signal input port (6) of the preamplifier assembly (1).

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