EDGUN DIGITAL MEASURING SYSTEM
EDgun is proud to introduce a new innovative manometer; the EDgun Digital
Measuring System (EDMS). The new EDMS is much more than a gauge that
reads pressure. This system is designed to interface with the user on many
levels. The EDMS will provide constant feedback on pressure, efficiency, shot
count and the gun's performance. This groundbreaking device will help the user
get the most out of the Pre-Charged Pneumatic airgun.
EDMS Hardware
The EDMS built around the MSP430AFE251
microcontroller
with
low
power
consumption.
Controller MSP430AFE251 relates to the line of
microcontrollers
series
AFE2xx
from
Texas
Instruments. This microcontroller is a high-performance
device and equipped with a built-in delta-sigma module
of a second-order converter with a dynamic range of more than 100 dB. This series
of microcontrollers characterized by extreme accuracy and minimum power
consumption
.
The gauge uses a solid ceramic pressure sensor made of
aluminum oxide ceramics from Metallux (Switzerland).
On one of the inner sides of the sensor is a thick-film
membrane. The housing contains contacts for connecting
the wire leads. High accuracy of the sensor achieved
through laser matching of the resistive bridge and
temperature compensation. As a result, the error of the
output signal is ± 0.1 mV/V. Monolithic ceramic pressure sensors manufactured by
Metallux, have stable output, possess resistance against various environments.
Metallux sensors possess excellent mechanical properties widely used in analog
measuring systems, and in pressure monitoring systems. These sensors commonly
used in high-performance automobiles by famous manufacturers such as Audi and
BMW.
The EDMS uses the Winstar OLED display with a resolution of 64x32 pixels.
Displays built on OLED technology have several advantages over conventional
LCD and VFD technologies.