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Photomultiplier tube shielding structure and signal detection device

A technology of photomultiplier tube and shielding structure, applied in electron multiplier tubes, measuring devices, discharge tubes, etc., can solve problems such as affecting the accuracy of photomultiplier tubes to optical signals, and achieve the effect of improving accuracy

Active Publication Date: 2022-03-01
MEDCAPTAIN MEDICAL TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the prior art, in some instruments and devices, certain electromagnetic fields will be generated when the internal circuits or components work, and they cannot be avoided in space, which will affect the accuracy of photomultiplier tubes for optical signal detection

Method used

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  • Photomultiplier tube shielding structure and signal detection device
  • Photomultiplier tube shielding structure and signal detection device
  • Photomultiplier tube shielding structure and signal detection device

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner" and "outer" are based on the Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed...

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Abstract

The present invention provides a signal detection device for detecting weak light signals. The signal detection device includes a first casing, a photomultiplier tube and a photomultiplier tube shielding structure for shielding the photomultiplier tube. The first housing defines a mounting slot. The shielding structure of the photomultiplier tube includes a shielding cylinder, one end of the shielding cylinder is inserted into the installation groove, the photomultiplier tube is accommodated in the shielding cylinder, and the photomultiplier tube socket of the photomultiplier tube Located at one end of the shielding cylinder away from the first casing, the shielding cylinder has a magnetic field shielding effect. The invention also provides a shielding structure of the photomultiplier tube. The invention can shield the magnetic field in the working environment of the photomultiplier tube by arranging a shielding tube with a shielding effect outside the photomultiplier tube, so as to avoid the performance of the photomultiplier tube being affected, thereby improving the accuracy of detection.

Description

technical field [0001] The invention relates to the technical field of photomultiplier tube packaging, in particular to a photomultiplier tube shielding structure and a signal detection device having the photomultiplier tube shielding structure. Background technique [0002] Photomultiplier tube is an important detector for low-light measurement, especially for extreme weak light detection technology. Photomultiplier tubes play an extremely important role in high-tech fields such as life sciences, biochemistry, precision analysis, and optomechanical integration. However, photomultiplier tubes are very sensitive to magnetic fields, so it is desirable to use them in an environment where there is no magnetic field, especially to avoid close to power transformers or magnets. However, in the prior art, in some instruments and devices, certain electromagnetic fields will be generated when the internal circuits or components work, and they cannot be avoided in space, which will af...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J43/28G01J1/02G01J1/42
CPCH01J43/28G01J1/0295G01J1/42
Inventor 杨佰旺吴文超王海
Owner MEDCAPTAIN MEDICAL TECH
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