Biosafety cabinet airflow velocity detection and calibration device and system
A biosafety cabinet and flow rate detection technology, which is applied in the testing/calibration of measuring devices, speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, etc., can solve the problems of low measurement efficiency, poor measurement accuracy, and measurement point positioning Difficulties and other problems, to achieve the effect of improving positioning efficiency, improving adaptability, improving measurement efficiency and measurement accuracy
Active Publication Date: 2022-05-10
NAT INST OF METROLOGY CHINA
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Problems solved by technology
For this reason, the present invention proposes a biosafety cabinet air flow velocity detection and calibration device to solve the problems of difficult positioning of measurement points, low measurement efficiency and poor measurement accuracy in the process of manual detection and calibration of biosafety cabinets
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[0045] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0046] Such as Figure 1 to Figure 9 As shown, the embodiment of the present invention provides a biosafety cabinet airflow velocity detection and calibration device (in the embodiment of the present invention may be simply referred to as "detection and calibration device"). The detection and calibration device is used to detect air flow velocity at several air flow measurement points located in the biological safety cabinet 101 .
[0047] Such as image 3 As shown, the detection and calibration device includes a positioning block 301 and a fixed rod 302 . At least one positioning block 301 is horizontally placed in the biological safety cabinet 101 . Wherein, there are several installation po...
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The invention relates to the technical field of air flow velocity calibration of biological safety cabinets, in particular to a detection and calibration device and system for air flow velocity of biological safety cabinets. The air flow velocity detection and calibration device of the biological safety cabinet is used to detect the air flow velocity of several air flow measurement points located in the biological safety cabinet; the detection and calibration device includes: at least one positioning block, placed horizontally in the biological safety cabinet, on the positioning block There are several installation positions distributed, and each installation position is set in one-to-one correspondence with several airflow measurement points in the same row; the fixed rod is set as a retractable structure, one end of which is inserted into any installation position, and the other end is installed with a wind speed sensor. The wind speed sensor can rotate relative to the positioning block, and the wind speed sensor is provided with a wind speed sensing position, and the wind speed sensing position is used for setting corresponding to any airflow measurement point. The detection and calibration device can quickly and accurately locate the airflow measurement point, and perform multiple measurements on different airflow measurement points, thereby effectively improving measurement efficiency and measurement accuracy.
Description
technical field [0001] The invention relates to the technical field of air flow velocity calibration of biological safety cabinets, in particular to a detection and calibration device and system for air flow velocity of biological safety cabinets. Background technique [0002] Biological safety cabinet is a kind of negative pressure filter fume cabinet, which can prevent the operator and the environment from being exposed to the bioaerosol pollution generated during the experiment. It is widely used in medical and health, disease prevention and control, food hygiene, biopharmaceutical, environmental Monitoring, as well as various biological laboratories and other fields, are important basic equipment for ensuring biological safety and environmental safety. Biological safety cabinets are divided into three levels: Class I biological safety cabinets, Class II biological safety cabinets and Class III biological safety cabinets. Among them, Class I biological safety cabinets an...
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IPC IPC(8): G01P21/02
CPCG01P21/025
Inventor 黄泽建江游隋志伟戴新华方向
Owner NAT INST OF METROLOGY CHINA
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