Abstract: Disclosed is a full-length vibration excitable component device for measuring the strength of a rock and a cementitious material. The device comprises a steel rod member (1), a vehicle body (2), a vibration motor (3), a frequency measurement element (4), and an integrated lead harness (5); wherein, the steel rod member (1) has a through slot (6) in its interior, the vehicle body (2) is placed in the through slot (6), and the top of the vehicle body (2) is provided with a first mounting slot and a second mounting slot.

Abstract: Disclosed is a full-length vibration excitable component device for measuring the strength of a rock and a cementitious material. The device comprises a steel rod member (1), a vehicle body (2), a vibration motor (3), a frequency measurement element (4), and an integrated lead harness (5); wherein, the steel rod member (1) has a through slot (6) in its interior, the vehicle body (2) is placed in the through slot (6), and the top of the vehicle body (2) is provided with a first mounting slot and a second mounting slot.

Abstract: A bimodal three-dimensional mammary gland imaging quality detecting phantom and method, which includes: a three-dimensional breast appearance phantom structure made of agarose gel containing polyethylene, which is a radiation equivalent material of adipose tissues under X-rays, the relaxation time of hydrogen protons in the agarose gel under a 3T magnetic field is equivalent to that of human adipose tissues, and mammary gland tissue duct phantoms and phantoms of lobules of mammary gland are distributed in the breast appearance phantom structure. The phantom can be used for the image quality detection and analysis of mammary gland imaging by the systems of magnetic resonance and mammography, the material is elastic and can be compressed on a mammography platform for imaging, and the phantom can also be vertically placed in the magnetic resonance mammary gland coil for tomography, so two imaging modes of one phantom are achieved, and the application range is expanded.

Abstract: A bimodal three-dimensional mammary gland imaging quality detecting phantom and method, which includes: a three-dimensional breast appearance phantom structure made of agarose gel containing polyethylene, which is a radiation equivalent material of adipose tissues under X-rays, the relaxation time of hydrogen protons in the agarose gel under a 3T magnetic field is equivalent to that of human adipose tissues, and mammary gland tissue duct phantoms and phantoms of lobules of mammary gland are distributed in the breast appearance phantom structure. The phantom can be used for the image quality detection and analysis of mammary gland imaging by the systems of magnetic resonance and mammography, the material is elastic and can be compressed on a mammography platform for imaging, and the phantom can also be vertically placed in the magnetic resonance mammary gland coil for tomography, so two imaging modes of one phantom are achieved, and the application range is expanded.

Abstract: Disclosed is a functional magnetic resonance imaging quality detection phantom and method. The phantom includes two independent shells which are movably connected with each other, wherein a BOLD simulation signal module is arranged in the first shell, and a basic imaging detection module is arranged in the second shell; the BOLD simulation signal module includes a locating accuracy test component and a BOLD signal simulation component, the locating accuracy test component includes two locating blocks placed in a crossing manner, a wedge-shaped passage composed of isosceles right triangle blocks is arranged on the locating blocks, and the BOLD signal simulation component includes an artificial brain for functional magnetic resonance imaging; and the present invention can simulate human body BOLD signal changes and simulate a brain activation area in a magnetic resonance system, and is for the test analysis and researches on the accuracy, reliability and repeatability of brain function imaging.

Abstract: Disclosed is a functional magnetic resonance imaging quality detection phantom and method. The phantom includes two independent shells which are movably connected with each other, wherein a BOLD simulation signal module is arranged in the first shell, and a basic imaging detection module is arranged in the second shell; the BOLD simulation signal module includes a locating accuracy test component and a BOLD signal simulation component, the locating accuracy test component includes two locating blocks placed in a crossing manner, a wedge-shaped passage composed of isosceles right triangle blocks is arranged on the locating blocks, and the BOLD signal simulation component includes an artificial brain for functional magnetic resonance imaging; and the present invention can simulate human body BOLD signal changes and simulate a brain activation area in a magnetic resonance system, and is for the test analysis and researches on the accuracy, reliability and repeatability of brain function imaging.