具有电感式传感的低功耗水流测量参考设计
This reference design demonstrates a highly-integrated solution for this application using an inductive sensing technique enabled by the CC1350 SimpleLink™ Wireless MCU and FemtoFET™ MOSFET. This reference design also provides the platform for integration of wireless communications such as wireless M-Bus, Sigfox™, or a proprietary protocol. Water utility providers who wish to add Automatic Meter Reading (AMR) capability face the choice of replacing all of their existing meters or installing a simple electronic add-on module, which will accurately measure the water flow rate and wirelessly transmit the results. Such add-on modules can provide the least expensive solution to provide AMR features to consumers.
详情介绍
Meets measurement accuracy requirements of ISO4064-1:2014-11 (Class 1) Accurate measurement at a distance of 4.2 mm to a wheel (11mm diameter) Accurate flow measurement as low as 11.25 liters per hour Consumes only 4µA with 12Hz sampling rate Support ISM bands in 431 to 527MHz and 861 to 1054MHz range plus Bluetooth® Low Energy at 2.4GHz
