Array radiation level-sensing device and measuring method thereof

Abstract

The invention relates to the field of level-sensing devices, and discloses an array radiation level-sensing device and a measuring method thereof. An array type photoelectric conversion and multiplying part (2) consists of at least two micro-devices (5) which can independently accomplish photoelectric conversion and multiplying; scintillating crystals (1) are coupled to the array type photoelectric conversion and multiplying part (2); the array type photoelectric conversion and multiplying part (2) has at least one electric signal channel; the input end of an arithmetic processor (3) is connected to the electric signal channels; and the input end of an output part (4) is connected to the output end of the arithmetic processor (3). Compared with the prior art, the level-sensing device realizes the functions and performance that existing level-sensing devices cannot accomplish; the level-sensing device has extremely strong performance extensibility; the size of the level-sensing device can be greatly reduced; and the time characteristics, direction characteristics and spatial resolving power of the level-sensing device can be enhanced, the measuring ranges of single level-sensing device can be increased, so that the measuring can be more accurate and reliable.

Description

technical field [0001] The invention relates to the field of material level gauges, in particular to an array radiation level gauge and a measuring method thereof. Background technique [0002] In the field of material level measurement, the non-contact measurement method is not easily affected by harsh environments such as falling material inside the container, high temperature, steam, etc. because it does not contact the material. Compared with radar, laser, ultrasonic, machine vision and other non-contact level gauges that need to be placed inside the container, nuclear level gauges and passive nuclear level gauges are placed outside the container, directly penetrating the container under non-destructive conditions The shell completes the measurement, which is a necessary choice for many working conditions. However, in actual production and application, both the nuclear material level gauge and the passive nuclear material level gauge have certain defects, which cannot g...

AI Technical Summary

Problems solved by technology

[0005] 1. Poor time characteristics

Due to the long single pulse time of the photomultiplier tube, the response time of the passive nuclear level gauge that generates material level data after a large number of sample calculations is relatively long

When measuring the material level of a container with a relatively fast operation process, even in the fastest response time mode, the measurement data of the passive nuclear material level gauge seriously lags behind the actual working conditions, such as a warehouse pump that feeds in a few seconds and comes out in a few seconds , the passive nuclear level gauge cannot perform real-time control and measurement

[0006] 2. Poor directionality

When measuring the material level, it is impossible to distinguish the actual position of the material level in the container, such as up, down, left, and right. You only know the material level, but you don’t know where the material is.

[0007] 3. Large size and heavy weight

As a result, the actual measurement range of the passive nuclear level gauge is very small

Through multi-probe passive nuclear level gauges or multiple passive nuclear level gauges connected in series to form a large range of measurement, although the measurement range problem is solved, the cost is high

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