Features of 5G connector assembly testing machine

    Features of 5G connector assembly testing machine

    The accuracy and reliability of the metal detector depends on the frequency stability of the electromagnetic transmitter, and generally use the operating frequency from 80 to 800 kHz. The lower the working frequency, the better the detection performance of iron; the higher the working frequency, the better the detection performance of high carbon steel. The sensitivity of the detector decreases as the detection range increases, and the size of the inductive signal depends on the size of the metal particles and the conductivity.

Due to the current pulsation and current filtering, the metal detector has certain restrictions on the conveying speed of the detected items. If the conveying speed exceeds a reasonable range, the sensitivity of the detector will decrease.

    In order to ensure that the sensitivity does not decrease, a suitable metal detector must be selected to adapt to the corresponding product being detected. Generally speaking, the detection range should be controlled as small as possible. For products with good high-frequency inductance, the size of the detector channel should match the product size. The adjustment of the detection sensitivity should be determined with reference to the center of the detection coil, and the induction at the center position is low. The detection value of the product will change with the change of production conditions, such as changes in temperature, product size, humidity, etc., which can be adjusted and compensated through the control function

    The spherical objects have repetitiveness and small surface area, which is also difficult for metal detectors to detect. Therefore, the ball can be used as a reference sample for detection sensitivity. For non-spherical metals, the detection sensitivity largely depends on the location of the metal, and different locations have different cross-sectional areas, and the detection effect is also different. For example, when passing longitudinally, iron is more sensitive; while high-carbon steel and non-iron are less sensitive. When passing horizontally, iron is less sensitive, while high-carbon steel and non-iron are more sensitive.

    In the food industry, systems usually use higher operating frequencies. For food such as cheese, due to its inherent high-frequency induction performance, it will proportionally increase the response of high-frequency signals. Moist fat or salt substances, such as bread, cheese, sausages, etc., have the same conductivity as metals. In this case, in order to prevent the system from giving false signals, the compensation signal must be adjusted to reduce the sensitivity of the induction.