How to detect the deflection value with the rigidity tester of medical injection needle

Sanquan Zhongshi medicine fully implements the standard gb18457-2015, the research and development of the rigid tester gxy-02 for injection needle and tube, which is used to measure the deflection value of the rigid stainless steel needle and tube used in the skin, subcutaneous, muscle and vein of human body, also known as the rigid testing machine for medical injection needle (needle) Medical injection needle (needle) rigidity tester, medical needle rigidity tester and medical injection needle rigidity tester, etc The instrument gxy-02 uses a dial indicator to display the displacement range, and the data collected through the dial indicator interface is sent to the LCD screen for display It has the advantages of intuitive display, high precision, and digital display of the measured deflection of the needle under the force First, place the instrument horizontally on the test bench; select the span block matching the injection needle to be tested and install it on the sensor; insert the power plug on the distribution board, and the ground wire of the power socket on the distribution board must be reliably grounded Calculation method of measured deflection: select the model and loading value of the tested needle tube on the main menu For example, for a 0.7mm needle, the loading force is 10N, and put the needle on a 15mm span block, turn on the power switch of the dial indicator, set the metric inch conversion key to mm, and then enter the test When the needle tube is just stressed, record the reading of the dial indicator (the dial indicator has a short pause time) For example -0.200, when the loading force value is reached, the dial indicator will observe the large value of Zui, for example -0.620, at this time, the displacement measured on the dial indicator is 0.620mm-0.200mm = 0.420mm, and then subtract the force displacement of a sensor, which is 0.011mm at 10N (refer to the verification report); then the deflection of the needle tube is 0.420mm-0.011mm = 0.409mm, Compared with the measured deflection on the LCD, the accuracy shall not be greater than ± 0.005mm Sanquan Zhongshi sumspring is committed to helping customers to deal with packaging problems and help the quality and safety of packaging related industries through the improvement of packaging testing technology and the research and development of packaging testing equipment