Radon exhalation rate measuring instrument
A technology of radon exhalation rate and measuring instrument, which is applied in the field of radon measurement, can solve the problems affecting the detection accuracy and pressure difference, and achieve the effects of avoiding danger, improving accuracy and ensuring safety
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Embodiment 1
[0028] Such as figure 2 As shown, the radon measuring chamber 300 is a shell structure, and is arranged inside the precipitation cover 200, wherein the shell of the radon measuring chamber 300 is charged, and the charged amount is the first voltage value, and the detector 400 has a processing circuit and a probe 414 Two parts, the probe 414 part extends into the inside of the radon measuring chamber 300, and has a second voltage value, wherein the first voltage value is greater than the second voltage value, the positive high voltage radon measuring chamber 300 and the low voltage probe 414 form electrostatic field.
[0029] The casing of the radon measuring chamber 300 is provided with through holes, and there are multiple through holes distributed in various positions of the casing, so as to ensure that the external air can freely diffuse into the radon measuring chamber 300 .
[0030] In the precipitation cover 200, a protective plate 500 is also provided. The protective ...
Embodiment 2
[0034] Such as image 3 As shown, the inside of the shell of the precipitation cover 200 is the chamber 300 for measuring radon, the probe 414 of the detector 400 is arranged inside the shell of the precipitation cover 200, and the detector 400 is a negative high voltage detector 410, and the shell of the precipitation cover 200 is used Conductive material, and ground the precipitation cover 200 at the same time, the zero-voltage shell and the negative high-voltage detector 400 form a collection electric field to collect positively charged radon progeny.
[0035] Since the shell has been grounded and has zero voltage, the precipitation cover 200 no longer needs insulation treatment, which greatly simplifies the structure and volume of the radon precipitation rate measuring instrument, and simplifies the insulation process.
[0036] In the precipitation cover 200, a protective plate 500 is also provided. The protective plate 500 is arranged at the opening of the precipitation c...
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