Tài liệu Automatic control for Commercial building pptx
Tài liệu Auto control for Commercial building doc
... in digital
form, the controllers perform what is known as direct digital
control (DDC). Microprocessor-based controllers can be used
as stand-alone controllers or they can be used as controllers
incorporated ... microprocessor-based
controllers used in commercial buildings. These controllers
measure signals from sensors, perform control routines in
software programs, and take corrective...
Tài liệu Automatic control for Commercial_building pptx
... amount of controlled
variable required by the controller.
Proportional control, two-position control, and floating
control have different operating limitations. For example:
1. In modulating control, ... Series 90 controller with an
actuator usable for proportioning action. Limit controls can also
be added.
EQUIPMENT
CONTROLLERS
–Temperature controllers.
– Humidity controllers.
–Pres...
Auto control for Commercial building P1
... OF AUTOMATIC CONTROL
CONTROL FUNDAMENTALS
17
Fig. 20. Comparison of Analog and Digital Control Signals.
CONTROL MODES
Control systems use different control modes to accomplish
their purposes. Control ... 17
Basic Two-Position Control 17
Timed Two-Position Control 18
Step Control 19
Floating Control 20
Proportional Control 21
General 21
Compensation Control 22
Proport...
Auto control for Commercial building P2
... control system, and
indicating devices to facilitate monitoring of control system
activity.
ENGINEERING MANUAL OF AUTOMATIC CONTROL
CONTROL FUNDAMENTALS
35
CHARACTERISTICS AND ATTRIBUTES OF CONTROL ... cost, and
reliable actuators
for large valves
and dampers
Simplest
modulating
control
Most common for
simple on-off
control
Integral sensor/
controller
Simple sequence
of con...
Tài liệu Strategy Execution for Risk Management pptx
... a challenge
for business and technology executives. The former type of risk is somewhat more recurring, predictable
and perhaps controllable, and, therefore, the business case for investment ... management
more than ever before.
Business risks can be both internal to the firm, such as rolling out an inadequately tested system, as well as
environmental, in the form of an unanticipated...
Tài liệu RESEARCH INSTITUTE FOR AQUACULTURE NO2 pptx
... catfish
feed
in vitro
di ib
in vivo
l
Field
farming
Crude
enz
yme
Commercial
Protease
Mixtu
re A
Bi
commercial
Alpha amilase
commercial
Phytase
ivity
digestib
ivity
culture
farming
y
extract ... 600gwerecollected.
Compounded pellet feed were used for
feeding only and routinely fed on 3 times
per day.
Tra catfish previously starved for 12
hours before digestive tract remov...
Tài liệu Basic grammar for new learner pptx
... ít.
Twenty-five dollars
is too much for the meal.
Fifty minutes
isn’t enough time to finish this test
Twenty dollars
is all I can afford to pay for that radio.
Two miles
is too much ... than I did last week.
He has less
time now than he had before.
This magainze is better than
that one.
He acts worse
now than ever before.
Lưu ý: farther dùng cho khoảng cách; further dùn...
Tài liệu 26 Algorithms for Computed Tomography pptx
... reconstruction algorithm, for performing that task. In the
numerical observer approach [11, 16, 17], a task-specific FOM is computed for each image. Based
on the FOMs for all the images produced ... Fourier transform is the same as taking the Radon transform and then applying
the Fourier transform with respect to the first variable” [1]. The method was first proposed in [5]
and the reason...
Tài liệu MEMS Sensors for Biomedical Applications pptx
... MEMS Sensors for Biomedical
Applications
Yu-Chong Tai
Professor of EE
Member of NSF/CNSE
California Institute of Technology
(NSF/ERC Industry Day, May ... nanometers to millimeters.
Other Names
Monocytes/Field
Monocyte
Monocyte
Attachment
Attachment
Control Ox-PAPC
Ox-PAPC +
High slew Rate
Ox-PAPC +
Low Slew Rate
Ox-PAPC +
Oscillating Flow
Other ... Recording
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