Low temperature chamber for dynamic and static character measurement of shock transmission unit and dynamic and static character measurement method

摘要

The present invention provides a low temperature for measuring the dynamic and static characteristics of the devices that are installed on your left jingyo large buildings In the test chamber, it is an object to provide a device within the left jingyo while maintaining a low temperature and pressure conditions within jingyo dynamic and dynamic and static characteristic measurement method using low-temperature chamber and this device for measuring the static characteristics of the left. ; According to the present invention, in the dynamic and static properties of the left jingyo cylinder 3 and the piston (5) provided within jingyo left and apparatus for stretching at a constant stroke (1) to measure the condition of minus surrounding the device (1) according to the low-temperature chamber to form a sub-zero temperatures, the piston rod (5), (7) and the body surrounding the periphery of the device within the left jingyo (1) so as to project to the outside (20), the body a heat transfer medium filled in the interior of (20) (29) and, in the interior of the body 20 and position the fluid injection means for supplying a fluid of a fluid or naengwon ( ) of the heat source ( ) as the heat transfer medium 29 and including, in the stroke of the stretching device jingyo left (1) and left it within jingyo as dynamic and static characteristics of the measurement device (1) provides a low-temperature chamber to maintain the heat transfer medium 29 to a temperature below zero.