1 The new watt-hour meters had been widely adopted.

2 This paper introduces a new smart watt-hour meter based on mechanical Induction watt-hour meter.

3 A three - phase watt-hour meter with function of piecewise measuring in real time is designed and realized.

4 The text will introduce error test methods of watt-hour meter and uncertainty measurement analysis.

5 Residential watt-hour meters are important tools that are used to measure the electricity of resident customers.

6 DD862 single phase watt-hour meter is an induction meter which is applicable to measure the rated frequency of 50 Hz , and power loss of single-phase intercourse grid.

7 Now it has been widely adopted in many watt-hour meters company of China.

8 In order to achieve accurate measurement under normal load and lower load, this paper produces a project of three-phase watt-hour meter, with real-time subsection according to load power.

9 A kind of technique of design of a prepaid single - phase electronic watt-hour meter was presented.

10 The performance, working theory and software of functional tester of single - phase watt-hour meter is introduced.

11 Based on bluetooth technology, this paper designs a long-distance Watt-hour meter's field test control system, describes working principle, implementation and communicating protocol.

12 This paper includes the following areas:Designed general scheme of prepaid watt-hour meter based on CPU card.

13 Wei could Group sales in Hong Kong and China, exclusive agents of the Israeli production company SATEC electric watt-hour meter and a series of devices equipment.

14 This paper discusses the development of multi - function watt-hour meter and compares the level of technology.

15 The design for assembly language programming, the realization of watt-hour meter and infrared communication function count.

16 The characteristics of a TM card and its reading-writing circuit and software program are discussed in detail, and a design of TM card watt-hour meter is introduced in brief.

17 The paper compares the three kinds of methods and, according to the characteristics of watt-hour meter in use stratified sampling, considers Neyman allocation as the appropriate method.

18 By practice and research, put on the ideas and requirements for multi - function watt-hour meter.