5 results about "Radiation testing" patented technology

The present application relates to a kind of separation identification and monitoring method and system of radiation background noise, in separation identification and monitoring method, background noise and equipment emission signal are synchronously collected by multiple fixed reference antennas and main antenna, and time synchronization is realized by central synchronous unit.First, based on spectrum comparison, background noise probability is calculated, and first grade is filtered out;Second, baseline model is established according to reference antenna data, abnormal signal is identified and its source is judged, and burst background noise and equipment real emission are distinguished;Second grade is filtered out by using pre-stored feature library for matching identification;Finally, the comparison result of real emission signal and background noise after filtering is displayed on test interface, and the data exceeding the standard is automatically marked, test margin is calculated and conclusion is generated.Compared with prior art, the present application can effectively solve the technical problem that background noise and equipment signal are difficult to separate in real time and accurately in complex electromagnetic environment, and the reliability and efficiency of radiation test are significantly improved.

The utility model belongs to the field of light radiation test technology especially relates to radiation test system, including work table, rotary table, clamping mechanism, support column, lifting mechanism, test antenna, be equipped with rotatable rotary table on work table, the centre of rotary table is equipped with positioning hole, rotary table still is equipped with clamping mechanism, is used for clamping the lamp to be measured, makes the lamp to be measured axis perpendicular to positioning hole axis, work table one side is equipped with support column, be equipped with lifting mechanism on support column, the lifting end of lifting mechanism is connected with an installation frame, and test antenna is installed on the installation frame, makes test antenna towards clamping mechanism. Adjust the ground clearance of test antenna through lifting mechanism, can ensure that the light emitting surface center of lamp to be measured and test antenna keep the same horizontal plane, improve the precision of radiation detection. Then rotate rotary table again, adjust the light emitting angle of lamp and the height of lifting test antenna, capture the maximum radiation value of lamp space distribution, ensure the accuracy of test, reduce the detection blind area.

This application discloses an RF shielding device and its design method for pod testing, belonging to the technical field of pod testing. The RF shielding device includes: a shielding shell with a pod interface on its side wall, through which the pod antenna radome enters the shielding shell; an absorbing layer disposed on the inner wall of the shielding shell for absorbing the RF signal output by the pod and interference signals from outside the shielding shell; a test antenna disposed within the shielding shell for receiving the RF signal; and an RF interface disposed on the side wall of the shielding shell, connected to the test antenna for connecting to pod testing equipment. Compared to traditional anechoic chambers, this provides a convenient and safe radiation testing environment for pods, thus reducing the difficulty of pod radiation testing.

This invention discloses a method for hazard assessment of the ship deck fuel handling environment, comprising: constructing a first-type test facility based on the ship deck fuel handling environment; conducting multi-level tests on the first-type test facility under different radiation conditions, different radiation times, and fuel vapor ignition at different test temperatures to obtain first-type test results; improving the first-type test facility to obtain a second-type test facility; controlling the test temperature in the second-type test facility to the highest temperature of the first-type test results and then starting radiation testing according to a preset frequency and power to obtain second-type test results; and conducting a hazard assessment of the ship deck fuel handling environment based on the first-type and second-type test results to obtain an assessment result. This invention enables a comprehensive assessment of the hazards of the ship deck fuel handling environment. The method not only improves the accuracy of the assessment but also provides a scientific basis for developing corresponding safety measures and operating procedures.

This application relates to an irradiation testing system for nuclear power robots. The system includes an irradiation source, at least one irradiation platform, a testing device, and a central control device. The irradiation platform carries the component under test and is positioned close to the irradiation source. The testing device is connected to both the component under test and the central control device via wiring to collect electrical parameters of the component under test during irradiation. The central control device analyzes the radiation resistance of the component under test based on these electrical parameters. A first isolation component is provided between the testing device and the irradiation source. A second isolation component is provided between the central control device and the irradiation source. By collecting the electrical parameters of the component under test in real time during irradiation through the testing device and analyzing them through the central control device, online dynamic monitoring and accurate determination of the radiation resistance of the nuclear power robot are achieved, thereby improving testing accuracy.