The above content is reviewed and announced by the National Science and Technology Term Review CommitteeIntroductionFiber access refers to the communication between the central office and the user Com...

Instructions for use1. Pointer display window: Indicate the built-in battery voltage 5 seconds before starting up, and then indicate the signal strength. 2. Cursor display: single display has signal,...

The signal leakage mentioned here refers to the phenomenon that occurs in the indoor distribution systemLeakage solution one: reduce power. Specific measures: BTS or active devices have low power; use...

MethodMeasurement Ruler DistanceMeasurement ruler directly measures the distance between two points, which is divided into steel ruler measurement distance and Invar baseline measurement distance. The...

PrincipleWhen a process device is manufactured or operated, it is not only necessary to know whether there is leakage, but also how large the leakage rate is. The concept of "leak" in leak detection t...

ExampleFor example, if glucose and fructose are expanded in n-butanol-acetic acid-water (4∶1∶5) at 20℃, R of 0.18 and 0.23 can be obtained, respectively.f value is expanded in ethyl acetate-pyridine-w...

Basic informationDevelopment historyJDSU was established in 1981. After more than 20 years of development, it has continued to implement acquisition strategies and has gradually become the leading glo...

Product introductionOptical power meter refers to an instrument used to measure absolute optical power or relative loss of optical power through a section of optical fiber. In fiber optic systems, mea...