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Dave
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Recent content by Dave
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D
A Control Loop That Provably Never Acts on Stale State
You certainly need to contact those involved in such research. https://ieeexplore.ieee.org/document/10371395
Dave
Post #5
Aug 30, 2026
Forum:
Programmable Logic Controller - PLC
D
A Control Loop That Provably Never Acts on Stale State
This addresses several approaches to introducing new concepts https://owl.purdue.edu/owl/graduate_writing/graduate_writing_genres/graduate_writing_genres_conference_presentations_new.html
Dave
Post #4
Aug 28, 2026
Forum:
Programmable Logic Controller - PLC
D
A Control Loop That Provably Never Acts on Stale State
Given that you want a review, the usual approach is to present it at a conference
Dave
Post #2
Aug 27, 2026
Forum:
Programmable Logic Controller - PLC
D
Don't Overlook the Mounting Structure When Ordering a Magnetron
Not just the physics, but the physical installation!
Dave
Post #2
Aug 27, 2026
Forum:
Off-Topic
D
How do you know when a soft sensor / inferential model has silently gone wrong?
So how many process variables are you monitoring and the level of measurement redundancy required, together with the number of control variables being used to achieve the desired outcomes.
Dave
Post #4
Aug 24, 2026
Forum:
General Automation Chat
D
Measuring Sulfuric Acid 98% Flow
Acid flow measurement well understood. Contact the major instrument suppliers in your area. The key is getting proper support from the supplier when things get complicated.
Dave
Post #9
Aug 19, 2026
Forum:
General Automation Chat
D
Life expectancy of 24VDC power supply continuously being in use in DCS & PLC System
Indeed, even solder connections have a MTBF
Dave
Post #4
Aug 13, 2026
Forum:
General Automation Chat
D
Calibration of new type DP Level Transmitter Make Endress+Hauser
The volume of the horizontal tank is immaterial, only the liquid level relative to the transmitter connection. Such factors have been studied for thousands or years, from Archimedes on...
Dave
Post #6
Aug 13, 2026
Forum:
Sensors & Calibration
D
Life expectancy of 24VDC power supply continuously being in use in DCS & PLC System
Those numbers indicate that the greatest loss of reliability is outside of the control of the manufacturer, and in the hands of the end user.
Dave
Post #2
Aug 13, 2026
Forum:
General Automation Chat
D
Process Engineers: What's one thing you'd improve about your plant's alarm system?
There is no simple answer as it involves process design, and how are the controls and alarms supervised. The latter dictates that operations and maintenance staff be involved in the design review.
Dave
Post #3
Aug 6, 2026
Forum:
Safety
D
PLC programming books
George Boole offers a good introduction "The Laws of Thought."
Dave
Post #2
Jul 24, 2026
Forum:
Programmable Logic Controller - PLC
D
PLEASE, I AM NEW TO PLC, HELP ME GO THROUGH MY PROGRAM
To automate, you begin with the motor start switch, then decide what's next, one step at a time.
Dave
Post #5
Jul 9, 2026
Forum:
Programmable Logic Controller - PLC
D
How we check vortex flow meter yewflo give a correct out put 4-20 against gas flow in side the vortex
Typically, you have the meter shop tested prior to purchase
Dave
Post #2
Jul 4, 2026
Forum:
Feedback & Suggestions
D
Has Anyone Used the Pindom WF103-S 10KW Microwave Generator in Continuous Production?
If you show your complete design, form of ceramic (composition, size of particles, etc), and preliminary test results, you might get some responses
Dave
Post #2
May 27, 2026
Forum:
General Automation Chat
D
How exactly does a Level-to-Flow cascade controller work?
Tank levels are rarely fast acting, but a reservoir. Fast acting and accurate flow control is common in some processes, but rarely will tank level be used to control the discharge flow. For example, high pressure boilers are a totally different category, especially where super heaters, steam...
Dave
Post #5
May 23, 2026
Forum:
Instrumentation & Measurement
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