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208results about How to "Free from mechanical damage" patented technology

Bending-resistant multi-mode fiber

The invention relates to a bending-resistant multi-mode fiber used in an access network or a miniature optical device. The bending-resistant multi-mode fiber comprises an optical fiber and a coating coated on the outer surface of the optical fiber, wherein the fiber consists of a quartz glass core layer which has a section structure with a parabolic shape or step-type refraction index and a quartz glass cladding which surrounds the core layer. The optical fiber is characterized in that: the core layer has a diameter of between 20 and 200 mu m and consists of a germanium-and-fluorine-doped quartz glass material; and double solidified polymer coatings are coated out of the cladding, wherein an inner coating coated on the outer surface of the cladding is a low-refraction index flexible polymer coating while an outer coating is a high-Young's modulus polymer coating. Because of the design of the low-refraction index inner coating, an internal stress of the optical fiber is avoided, the mechanical performance of the optical fiber is greatly improved, and the use performance and the service life of the optical fiber working in a small-radius bending state are ensured. The bending-resistant multi-mode fiber has high bending-resistant performance; and at a wavelength of 850 nm, the additional attenuation of the bending caused by winding 1 circle with a bending radius of 10 mm is less than or equal to 0.15 dB. The bending-resistant multi-mode fiber has the characteristic of simple, convenient and effective manufacturing method, and is suitable for large-scale production.
Owner:EVERPRO TECH COMPANY

Elimination-absorber monitoring system

An elimination-absorber monitoring system addresses diaper-monitoring problems with a unique, low cost, multi-layer disposable sensor structure that absorbs small volumes of urine, yet allows most urine volume to flow unimpeded through it, and into the diaper below. When connected with a reusable, miniature monitor / indicator unit, the sensor presents a clear and on-going change of measurement condition upon experiencing a rapid influx into the diaper of a significant volume of urine, and / or upon a significant reduction in the available absorbency of the diaper's top surface. The sensor additionally provides recessed, protected elements for similarly presenting a clear and on-going change in measurement condition upon experiencing the presence of fecal matter. Further provided is the monitor unit employing narrow, widely-spaced, fast rise-time, fast transition-time pulses for conductivity measurement and alarm activation. The monitor and sensor are interconnected and attached to a diaper by particularly effective and unique means, and the monitor is equipped with a highly intuitive and convenient control interface, as well as improved assemblies for the transmission of audible and visual alarm indications. Also described is a convenient test-strip device which, when connected to the monitor / alarm unit of the system, can selectively simulate either a soiled or unsoiled elimination-absorber / sensor for test, caregiver-training or demonstration purposes.
Owner:NIELSEN WYN Y

Chain transmission dibble-type pot seedling planting device and method for same

ActiveCN104919953AHigh-speed transplantingEasy and flexible installationTransplantingEngineeringSeedling
The invention discloses a chain transmission dibble-type pot seedling planting device and a method for the same. The device comprises a rack, a power transmission assembly, a rail control assembly and a pot seedling planting assembly, wherein the power transmission assembly and the rail control assembly are arranged on the rack; the pot seedling planting assembly is arranged on the power transmission assembly, and keeps moving cyclically and perpendicularly under the action of the rail control assembly. The overall structure of the device is vertically arranged, so that the space volume in the horizontal direction is reduced, and the planting device can be arranged more flexibly and conveniently; a unique dibble-type structure is adopted for the pot seedling planting assembly, duckbills are opened and closed in a direction perpendicular to the advancing direction of the planting device in a planting process to prevent seedlings from mechanical damage, and the number of dibbles is regulated to transplant seedlings in different varieties and specifications; the pot seedling planting assembly is driven to move in a chain transmission manner, and is controlled to be kept in a perpendicular attitude by the rail control assembly in a roller and annular rail matching manner, so that transmission stability is ensured, and high-speed pot seedling transplantation operation is facilitated.
Owner:ZHEJIANG UNIV
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