The invention provides a support for calibrating field uniformity of a transient electromagnetic field, and the support comprises a base (1), an angle adjusting device (2) and a test rod (3); the base (1) comprises two supporting arms (11) and a fixed disc (14), the two supporting arms (11) are mutually vertical to each other and fixedly connected with the fixed disc (14), the end of each supporting arm (11), which is close to the fixed disc (14), is provided with a projection (12), and a rotating shaft (15) is arranged on the center of the fixed disc (14); and the angle adjusting device (2) is installed on the rotating shaft (15) and can rotate along the rotating shaft (15), and one end of the angle adjusting device (2) is connected with one end of the test rod (3). When the support is adopted in a system for calibrating the field uniformity of the transient electromagnetic field, the support not only can be used for supporting and fixing a probe, but also can be used for adjusting the position and angle of the probe; the support can meet the multi-angle, multi-position and multi-plane test requirement for the electromagnetic pulse uniformity area; the support has high precision for adjusting the position and the angle of the probe; and the support is low in production cost and convenient to use.

Novel system for quickly calibrating field uniformity of transient electromagnetic field

The invention provides an on screen display data electromagnetic compatible test system and method. The system comprises a test unit, a data acquisition unit, a shooting monitoring unit, and an on screen control unit, wherein the data acquisition unit is used for obtaining first test data generated by the test unit, extracting the target data in the first test data to generate second test data, and sending the second test data to the on screen control unit; the shooting monitoring unit is used for performing video monitoring on the area to be tested, and sending obtained video data to the on screen control unit; the on screen control unit is used for displaying received second test data and video data on a same screen. The on screen display data electromagnetic compatible test system can realize simultaneous display of test data and monitoring videos, and provide great convenience for test personnel.

On screen display data electromagnetic compatible test system and method

The invention discloses a method for calibrating the field intensity distribution characteristics of an electromagnetic reverberation chamber. The field intensity of an electromagnetic reverberation chamber can be tested by eight field intensity probes at the same time to acquire the field intensity distribution characteristics. The precision is high, and the speed is high. Spatial field intensity sensors are used to sense spatial 100MHz-18GHz radio-frequency microwave electromagnetic field signals and convert the radio-frequency microwave signals into direct-current signals. The eight channels of signals are transmitted by optical fibers to a data receiving unit after data processing end encoding is carried out and the direct-current signals pass through an electro-optical converter. The field intensity distribution characteristics of the electromagnetic reverberation chamber are calculated and processed through a central processing unit. The method is disclosed to realize accurate measurement of the distribution characteristics of a spatial broadband electromagnetic field. The range of field intensity amplitude measurement is from 1V/m to 200V/m, and the inaccuracy of measurement is 1.5dB.

Method for automatically calibrating the field intensity distribution characteristics of electromagnetic reverberation chamber

The invention relates to a video data processing method comprising: receiving a push request sent by a first terminal, wherein the push request includes a first terminal identifier; adding the first terminal identifier to a push terminal identifier set; receiving real-time push data sent by a second terminal, wherein the first terminal and the second terminal are terminals for watching camera real-time videos; adding the real-time push data to a push data set; pushing the push data set to a terminal corresponding to the push terminal identifier set according to a preset rule, the push data set being used for being played simultaneously with the real-time video acquired by the camera. The terminal corresponding to the push terminal identifier set can play the push data transmitted by itself or other terminals while playing the real-time video to satisfy data sharing and interaction in live video play. Furthermore, a video data processing apparatus is provided.

Video data processing method and apparatus

Method and system for quickly calibrating field uniformity of transient electromagnetic field

The invention discloses a radiation field uniformity calibration positioner, which comprises a vertical connected rod, a bottom plate, a horizontal connected rod and a horizontal sleeve; the bottom end of the vertical connected rod is fixed on the bottom plate; the horizontal sleeve is sleeved on the vertical connected rod, and can axially slide along the vertical connected rod; an axial positioning mechanism is arranged on the horizontal sleeve and/or the vertical connected rod, and is used for axially fixing the horizontal sleeve on the vertical connected rod; one end of the horizontal connected rod is fixed on the horizontal sleeve and is perpendicular to the vertical connected rod, and the other end of the horizontal connected rod is used for fixing an electric field probe; and the cross-sectional area of the horizontal connected rod is smaller than the cross-sectional area of the vertical connected rod. The radiation field uniformity calibration positioner can increase the accuracy of a radiation field uniformity test result and the efficiency and accuracy of radiation field uniformity calibration positioning operation.

Radiation field uniformity calibration positioner

The invention discloses an electromagnetic compatibility test monitoring system, which is characterized in that: corresponding screen information of various parameters of the electromagnetic compatibility test testing system output to an integrated data acquisition system display is acquired, and the layout state and the working state of a test sample in a test site of an electromagnetic compatibility test are shot by a video camera, and are respectively converted into an FLV (flash video) format and sent to an FMS (flash media server); and the FMS is communicated with a monitoring terminal and a client terminal through Internet. When the electromagnetic compatibility test of the test samples is conducted by the electromagnetic compatibility test monitoring system provided by the invention, the information needing to be concerned in the electromagnetic compatibility test can be remotely obtained by client engineers in real time.

Electromagnetic compatibility test monitoring system

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Radiation field uniformity calibration positioner

Electromagnetic compatibility test monitoring system