Intelligent UFM-B, Руководство по обслуживанию, Страница: 4 / 43

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2. SPECIFICATION
2.1 SYSTEM BLOCK DIAGRAM
Description:
When a mass is placed on the platform, the load of the article is
transferred to the load cell inside.
The resistance to the excitation current in the strain gauge will then
be changed and the analog output signal varies in proportion to the
load applied.
It is amplified and digitized continuously by the A/D converter into
a digital signal. Subsequently, the resulting count is processed and
managed
by the CPU. The CPU refers to the instructions from the keyboard,
and then conveys the output data to LCD driver, which formats the data
into a readout on the display panel.
LCD DRIVER
CPU
with ROM
E+
LOAD E-
CELL S+
S-
POWER SUPPLY:
AC ADAPTOR
(9V/500mA)
RECHARGEABLE
BATTERY (6V 4Ah)
A/D UNIT
KEYBOARD
(6 KEYS)
LCD
INTERFACE