ScioSense AS6040 Ultrasonic Flow Meter for Gas Meters

ScioSense AS6040 Ultrasonic Flow Meter for Gas Meters is a solution dedicated to gas meters and is suitable for water meters as well. The system is made of four major blocks: supervisor, front-end, post-processing, and interface. The supervisor manages all tasks and is the master of the whole system, making the AS6040 autonomous. The front-end integrates a high-voltage driver, an integrated PGA and an offset-stabilized comparator in the receive path, a precision TDC for the time-of-flight measurement, amplitude measurement as well as an RDC unit for temperature measurement.

Features

High performance + ultra-low-power 32-bit CPU
120 x 32-bit NVRAM (non-volatile RAM) for user firmware parameter and data
3968 x 8-bit NVRAM (non-volatile RAM) for user firmware program code
4k x 8-bit ROM for system task code and special flow library code
50kHz to 1MHz at 6V to 17V drive voltage, generated from battery supply

Integrated PGA, gain 2 to 200
First hit level and phase detection
Amplitude measurement
Up to 31 zero-crossing measurements
Precision time-to-digital converter and low-noise front-end with < 50ps single shot with good 1MHz transducers on a DN20
Ultra-low power consumption
SPI serial interface

Applications

Residential gas meters
Industrial gas meters

Clamp-on water meters
Volume counters

ScioSense AS6040 Ultrasonic Flow Meter for Gas Meters

Features

Applications

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Block Diagram

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