Ningbo Water Meter Co.

Ningbo, China

Ningbo Water Meter Co.

Ningbo, China

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Yao L.,Ningbo Water Meter Co. | Yao L.,Ningbo University | Wang R.-D.,Ningbo University | Zuo F.-Q.,Ningbo Water Meter Co. | Wang X.-X.,Ningbo Water Meter Co.
Jiliang Xuebao/Acta Metrologica Sinica | Year: 2014

The evaluation index of ultrasonic water flow detection transducer is an important aspect for reflecting the transducer operational performance. The research details about the transducer evaluation index, evaluation index test method and performance test device were described. The performance and influence quantity test of the transducer has be done using a self-restraint transducer performance test device. The effective ways and means have be provided about ultrasonic water flow detection transducer screening, matching and quality control.


Yao L.,Ningbo University | Yao L.,Ningbo Water Meter Co. | Wang R.-D.,Ningbo University | Zuo F.-Q.,Ningbo Water Meter Co. | Luo Y.,Ningbo University
Jiliang Xuebao/Acta Metrologica Sinica | Year: 2013

As the fluid in pipe is in different Reynolds number, the average fluid velocity along the acoustic path measured by the ultrasonic water meter and the mean axial fluid velocity has significant nonlinear. Accorded to the different distribution state of measured fluid flow in the pipe, a new segmented correction method of flow measurement characteristics is proposed. By establishing a cutting point in critical area, the correction method of constant coefficient is adopted at the laminar, and that of linear equation fitting is used at the turbulence and transition flow respectively. Experiments show that this method is feasible.


Du Z.,China Jiliang University | Zhang K.,China Jiliang University | Yao L.,Ningbo Water Meter Co. | Tu C.X.,China Jiliang University | And 2 more authors.
AIP Conference Proceedings | Year: 2011

Firstly, a three-dimensional model of WS-80 vertical Woltmann water meter was created according to its geometrical parameters. And then the finite volume based SIMPLEC method and two different turbulence models (κ-ε RNG and κ-ε realizable) are used to get the internal flow of Water Meter, respectively. Finally, the details of flow, such as pressure loss, velocity vector and pressure distribution of flow field are derived. In addition, the numerical simulation of pressure loss was compared with experimental data. It has been found that numerical simulation results can really reflect the complicated internal flow of water meter, and they can be used as the guidance for the design and optimization of vertical Woltmann water meter. © 2011 American Institute of Physics.


Chen H.,China Jiliang University | Zhang K.,China Jiliang University | Yao L.,Ningbo Water Meter Co. | Zhang H.J.,China Jiliang University
Advanced Materials Research | Year: 2013

Flow field inside an ultrasonic water meter of time-difference-type are numerically simulated at several flow rates. Linear mean velocity (LMV) averaged along the line between the transmitting transducer and the receiving one, and the surface mean velocity (SMV) averaged in the cross section of the reducing-type flow passage, and the flow correction coefficient are calculated with the flow field data obtained by the simulation. It's found that the values of flow correction coefficient for the reducing-type meter channel flow are quite different from that for a fully developed pipe flow, and are related to the flow rate or Reynolds number. © (2013) Trans Tech Publications, Switzerland.


Yao L.,Ningbo Water Meter Co. | Xu L.,Ningbo Water Meter Co. | Zuo F.-Q.,Ningbo Water Meter Co.
Jiliang Xuebao/Acta Metrologica Sinica | Year: 2012

A fluidic electronic water meter based on the permanent magnet excitation electromagnetism examination method is described. Its structure principle, the major technique characteristic, the flow measurement characteristic, as well as the sensing and the signal processing technology are studied. In view of the fluidic electronic water meter is for small flow measurement the improvement idea and the method in the theoretical analysis and the experiment foundation is proposed. After volume production of the fluidic electronic water meter, it proves that the small flow characteristic idea and the method are effective.


Nwm

Trademark
Ningbo Water Meter Co. | Date: 2011-07-05

Water meters; distance measuring apparatus; gas meters; tool measuring instruments; electric meters.


Dublin, Dec. 16, 2016 (GLOBE NEWSWIRE) -- Research and Markets has announced the addition of the "China Smart Meter Industry Report, 2016-2020" report to their offering. In 2015, China's smart meter shipments reached 150 million units, up 6.8% yr-on-yr; expected to grow to 160 million units in 2016. In the future, with the continuous development of IoT (Internet of Things), the smart meter market will grow steadily at an average annual rate of over 8.0% in 2016-2020. Smart Gas Meter records shipments of 19.4 million units in 2015 and (an expected) 24.3 million units in 2016. As the market penetration grows, the figure may exceed 50 million units by 2020. At present, main suppliers in the market include Goldcard, Shaanxi Aerospace Power Hi-Tech Co., Ltd., HangZhouInnover Technology Co., Ltd., etc. In 2015, Goldcard took the first place with a 10.2% market share. Smart Water Meter records shipments of 11.73 million units in 2015 (up 13.7% yr-on-yr) and (an expected) 13.49 million units in 2016. Currently, the market penetration of smart water meter is far below that of smart electric meter and smart gas meter, indicating a larger growth space. Key manufacturers are Sanchuan Wisdom Technology Co., Ltd., Suntront Tech Co., Ltd, Ningbo Water Meter Co., Ltd., etc. with annual capacity of more than one million units. Primary driving factors in the future development of smart meter industry in China include IoT popularization, ladder price policies, etc. Key Topics Covered: 1 Industry Overview 2 Smart Meter Industry 3 Smart Electric Meter Industry 4 Smart Water Meter Industry 5 Smart Gas Meter Industry 6 Heat Meter Industry 7 Foreign Smart Meter Manufacturers 8 Key Manufacturers in China Companies Mentioned For more information about this report visit http://www.researchandmarkets.com/research/2rnpqp/china_smart_meter


News Article | December 16, 2016
Site: www.prnewswire.co.uk

DUBLIN, Dec. 16, 2016 /PRNewswire/ -- Research and Markets has announced the addition of the "China Smart Meter Industry Report, 2016-2020" report to their offering. In 2015, China's smart meter shipments reached 150 million units, up 6.8% yr-on-yr; expected to grow to 160 million units in 2016. In the future, with the continuous development of IoT (Internet of Things), the smart meter market will grow steadily at an average annual rate of over 8.0% in 2016-2020. Smart Gas Meter records shipments of 19.4 million units in 2015 and (an expected) 24.3 million units in 2016. As the market penetration grows, the figure may exceed 50 million units by 2020. At present, main suppliers in the market include Goldcard, Shaanxi Aerospace Power Hi-Tech Co., Ltd., HangZhouInnover Technology Co., Ltd., etc. In 2015, Goldcard took the first place with a 10.2% market share. Smart Water Meter records shipments of 11.73 million units in 2015 (up 13.7% yr-on-yr) and (an expected) 13.49 million units in 2016. Currently, the market penetration of smart water meter is far below that of smart electric meter and smart gas meter, indicating a larger growth space. Key manufacturers are Sanchuan Wisdom Technology Co., Ltd., Suntront Tech Co., Ltd, Ningbo Water Meter Co., Ltd., etc. with annual capacity of more than one million units. Primary driving factors in the future development of smart meter industry in China include IoT popularization, ladder price policies, etc. For more information about this report visit http://www.researchandmarkets.com/research/3x3mqj/china_smart_meter Research and Markets Laura Wood, Senior Manager press@researchandmarkets.com For E.S.T Office Hours Call +1-917-300-0470 For U.S./CAN Toll Free Call +1-800-526-8630 For GMT Office Hours Call +353-1-416-8900 U.S. Fax: 646-607-1907 Fax (outside U.S.): +353-1-481-1716


News Article | December 12, 2016
Site: www.businesswire.com

DUBLIN--(BUSINESS WIRE)--Research and Markets has announced the addition of the "China Smart Meter Industry Report, 2016-2020" report to their offering. In 2015, China's smart meter shipments reached 150 million units, up 6.8% yr-on-yr; expected to grow to 160 million units in 2016. In the future, with the continuous development of IoT (Internet of Things), the smart meter market will grow steadily at an average annual rate of over 8.0% in 2016-2020. Smart Gas Meter records shipments of 19.4 million units in 2015 and (an expected) 24.3 million units in 2016. As the market penetration grows, the figure may exceed 50 million units by 2020. At present, main suppliers in the market include Goldcard, Shaanxi Aerospace Power Hi-Tech Co., Ltd., HangZhouInnover Technology Co., Ltd., etc. In 2015, Goldcard took the first place with a 10.2% market share. Smart Water Meter records shipments of 11.73 million units in 2015 (up 13.7% yr-on-yr) and (an expected) 13.49 million units in 2016. Currently, the market penetration of smart water meter is far below that of smart electric meter and smart gas meter, indicating a larger growth space. Key manufacturers are Sanchuan Wisdom Technology Co., Ltd., Suntront Tech Co., Ltd, Ningbo Water Meter Co., Ltd., etc. with annual capacity of more than one million units. Primary driving factors in the future development of smart meter industry in China include IoT popularization, ladder price policies, etc. For more information about this report visit http://www.researchandmarkets.com/research/wdzhdq/china_smart_meter

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