Gas humidity measuring device and proton transfer reaction time-of-flight mass spectrometer
A humidity measurement and gas technology, applied in the field of testing equipment, can solve the problems of affecting the measurement results, liquid water accumulation, affecting the qualitative and quantitative measurement of the calibration gas, etc., to reduce the humidity balance time and prevent the accumulation of liquid water.
Inactive Publication Date: 2019-10-11
BEIJING SDL TECH
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Problems solved by technology
After measuring high-humidity gas, water vapor will condense on the sensor probe, and long-term measurement will cause liquid water to accumulate at the sensor probe, affecting subsequent measurement results
The filter material in the filter will have adsorption effect on the calibration gas, which will affect the qualitative and quantitative measurement of the subsequent calibration gas
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[0024] The specific embodiments of the present invention will be described in more detail below with reference to the drawings and examples, so as to better understand the solution of the present invention and its advantages in various aspects. However, the specific embodiments and examples described below are for the purpose of illustration only, rather than limiting the present invention.
[0025] The "connection" mentioned in the present invention should be interpreted in a broad sense unless otherwise specified or limited, and may be a direct connection or a connection through an intermediary. In the description of the present invention, it should be understood that the directions or positions indicated by "upper", "lower", "front", "back", "left", "right", "top", "bottom" etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, ra...
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The invention discloses a gas humidity measuring device and a proton transfer reaction time-of-flight mass spectrometer. The gas humidity measuring device comprises a body, a humidity sensor, a drainage pump and a control unit; the body includes a measuring chamber, a gas inlet and a gas outlet; the measuring chamber is a cavity structure with an opening at the top end; the gas inlet and the gas outlet are separately connected to the measuring chamber; the humidity sensor extends from the top opening of the measuring chamber into the measuring chamber; the humidity sensor measures the humidityof the gas in the measuring chamber, and sends the measured humidity value to the control unit; and the drainage pump is connected to the gas outlet. The gas humidity measuring device disclosed by the invention prevents liquid water from accumulating and reduces the humidity balance time.
Description
technical field [0001] The invention belongs to the field of detection equipment, and in particular relates to a gas humidity measuring device and a proton transfer reaction time-of-flight mass spectrometer. Background technique [0002] The monitoring of gas quality is inseparable from precise monitoring instruments. Proton transfer reaction time-of-flight mass spectrometer is a high-precision, high-sensitivity analysis equipment, with H 3 As a reaction reagent in the ionization process, O+ does not need to separate gaseous water before qualitative and quantitative gas analysis, which can effectively avoid the adsorption of gas components and complex chemical reactions by the water removal device, thus ensuring the accuracy of the test results. However, when the concentration of components in the gas is low, the influence of gas humidity on the detection results cannot be ignored, especially in the process of overweight detection, analyzing the change of the concentration o...
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IPC IPC(8): G01N1/44G01N27/62
CPCG01N1/44G01N27/62
Inventor 敖小强薛振华胡丹
Owner BEIJING SDL TECH