Science topic

Industrial Instrumentation - Science topic

Explore the latest questions and answers in Industrial Instrumentation, and find Industrial Instrumentation experts.
Questions related to Industrial Instrumentation
  • asked a question related to Industrial Instrumentation
Question
12 answers
This concept (the Internet of Things - IoT) has become increasingly popular. It is expected to offer promising solutions to transform the operation of existing industrial systems such as manufacturing and transportation. However, no studies/papers seem to be available on how advantageous (or disadvantageous) has been the implementation of IoT in industry. Could you provide me with some real evidence/specific cases on this issue?
Relevant answer
Answer
With each passing year, the Industrial Internet of Things matures. But coinciding with that growth can be increased complexity—more tools and techniques can create more confusion even as they optimize processes. As such, automation platforms (like those spotlighted in this Technology Report) are similarly maturing and growing increasingly important in the era of IIoT...
  • asked a question related to Industrial Instrumentation
Question
12 answers
What are important things to learn about instruments and controls in industries sector? Especially in gas power plant industries.
Relevant answer
Everything about nstrumentation in the book of Antonio Creus
  • asked a question related to Industrial Instrumentation
Question
4 answers
I have recently learned the concept of override control in the p&id diagram. I have also learned some typical examples but whenever i come across a new complicated override control I find it difficult to interpret and identify the two selected and de selected controlls.
Relevant answer
Answer
We are using Over ride control in Mill control. The Mill speed is controlled by the Standard PID Controller and this is over rided by the Carrier speed. Selection was given to opt both the possible ways of running the mill. This is working very effective.
  • asked a question related to Industrial Instrumentation
Question
3 answers
Would you recommend any process/portable instrument which can be coupled with fibre-optic probes? Would it better to go for longer wavelength excitation laser such as 1064 nm coupled with InGaAs detector or CCD with narrower wavenumber range? Are there some other critical issues to keep in mind?
Relevant answer
Answer
Dear Jan Skvaril .
Indeed, 1064 nm excitation give a chance eliminate luminescence so is better for wood samples. You should notice that using 532 nm excitation instead of 1064 nm give you about 22 times stronger Raman signal. Other parameters you should keep in mind are spectral resolution and spectral range. In general, high resolution is better but it could depend on your needs.
  • asked a question related to Industrial Instrumentation
Question
1 answer
I want to ask some questions relating to Cleaning Validation in pharmaceutical industy:
 
1) For microbial contamination, does this criterion depend on API or not? If not, suppose that the worst-case product is X and at the moment we do not manufacture it, can I take microbial samples for dirty hold time and clean hold time?
 
2) Suppose that we have produced X01, X02, X03,..., X10 (with 01, 02, 03,...., 10 are the batch no.). Can I perform cleaning validation on nonconsecutive batches, for eg. X01, X03 and X07?
 
3) There are 3 types of cleaning validation: dirty hold time, cleaning procedure validation and clean hold time. Can I perform them separately or they must be performed together on a batch?
 
Thank you for your help.
 
Best regards,
Nguyen
Relevant answer
Answer
Your objective should be to establish that you can achieve the target kill ratio, with required statistical certainty, over the specified range of product and process conditions. 
To determine the relative importance of " dirty hold time, cleaning procedure validation and clean hold time" you should conduct conventional ANOVA analysis to understand the role of each source of variation and allowable limits for each.  Good luck.
  • asked a question related to Industrial Instrumentation
Question
16 answers
In few recorders we not use transducers and in few of them we use. So, i want to know that what are the advantages or disadvantages.
Please comment related to details of sensors also which is used in a hybrid recorders.
Relevant answer
Answer
First the question is not complete and clear. Which type of recorder you are talking about? Mechanical, Electronic (Analog or Digital), or Magnetic etc.
Any recorder record a variable quantity. May be physical- temperature, pressure, humidity, weight, speed, acceleration, voltage, current, power etc. etc. Now these physical quantities need to be converted to another physical quantity say mechanical movement, or voltage or current depending upon the type of recorder. This conversion of one physical quantity to other takes place through a mechanism or a device called transducer. Simple microphone is a transducer. It converts air pressure into equivalent varying voltages. Speaker is a transducer that converts varying voltages at its input into equivalent  varying air pressure.
  • asked a question related to Industrial Instrumentation
Question
4 answers
I am testing a radar level measurement instrument but it is not working properly. I used water and fuel for testing but if actual fuel level is 0.2m, 0.4m, 0.6 m,0.8m then the radar level output is showing 1.6m constant.
So, please tell me what i need to do and How can i check the electronic part?
Relevant answer
Answer
Hi Anurag,
Thank you for clarifying the technical specs for the probe; the fact that it only seems to measure its own probe length, seems to imply that the transmitter energy does not seem to be leaving the exit aperture, or that the internal dimensions or topography of the probe near the end have been altered, producing an unbalanced load reflecting the transmitter energy back to the receiver.
This video may help to give insights into how different waveguides affect microwave propagation:
  • asked a question related to Industrial Instrumentation
Question
4 answers
We have a DMLS machine at the company I am working for and every time we build bulky parts the machine will jam. We have tried new re-coater arms (switched from blades to carbon fiber brushes). Has anybody encountered these problems?
Relevant answer
Answer
Hey Alex,
What were your results like with the different recoater blades? We're having similar problems with our additive set-up using a 304 stainless steel recoater blade for 316L stainless steel powder.
  • asked a question related to Industrial Instrumentation
Question
2 answers
Hello. I need a new fume hood for the laboratory and I have two options to choose: Labtech LFH-150 or Biobase FH1500. Could you tell me any experience using any of them? Thank you.
Relevant answer
Answer
Hello Miguel,
Merry Christmas and Happy New Year!
While selecting the fume-hoods pay attention to every details on the specifications and accessories rather than the price tag. I have a good experience earlier that one particular product was with the necessary filters but eventually was costing more. Other vendor only quoted the fume-hood without filter and since the price was lower then the one without a proper filter was ordered.
As far as specifications are considered, first check what BSL (1,2,3 or 4 level) your lab is. Then pay attention to the regulatory and conformity standard your particular equipment is designed and certified for.
Coming back to the two specific products you have stated,  - one is with simpler analog control(Labtech)  while the other (Biobase) comes with digital control and filter life-time alarm/warning. Eventually, the cost would be different and the later would be comparatively costlier than the first. Besides the cost difference, pay attention to the service support and original warranty that a manufacturer provides for the product. Also, the filters are consumables and sold separately, therefore pay attention to keep a few in stock with you. This would depend on how frequently you are using your fume-hood. If needed daily, the filter replacement life-time and the total cost would be factor to seriously think about.
It is my experience that we start with procuring many times sophisticated products just to show our lab(s) are modern and high-tech but later end up in abandoning these costlier investments simply because there was no maintenance or availability of spare parts and service support. Therefore we should be mindful or proper returns on our investments.
As far as the fume-hoods are considered, proper air suction and vents are more important rather than how you control the speed of the suction fan and durability and life-time of the filters. Keep close look at these primary factors and then decide what best suits your needs and more importantly your budget and available funding!
Best wishes!!!
  • asked a question related to Industrial Instrumentation
Question
1 answer
I am trying a simple method to sense liquid level in an open tank using hydro-static principle. Though it resembles bubbler/purge method of level sensing, it avoids the need of external purging thus making it simpler. The setup consist of a hollow SS tube of particular diameter which is running till the bottom of tank. The top end of tube is attached to a U-tube manometer via a narrow pipe. Manometer show zero deflection until the liquid level in the tank touches the bottom tip of SS tube. But once the liquid level crossed the bottom tip, a particular volume of air is trapped between the liquid in the SS tube and the manometric fluid.The pressure of this trapped air increases proportionally with the rise in liquid level of tank, which shows a deflection in manometer. The Δh of manometer can be calibrated to liquid level H and the level can be measured. Now the issue is temperature compensation. The trapped air expands and contracts w.r.t ambient temperature. For a particular liquid level H, the deflection in manometer is constant provided a constant ambient temperature. If the temperature is increased the pressure also increased showing a positive deflection in Δh and vice verse. This variation Δh vs temperature is linear, but the slope is different for different liquid level H, so a direct compensation is not possible. With the change in temperature the volume, pressure and density of trapped air is changing. I am stuck up with this problem, how to compensate level w.r.t. change in temperature and I am not getting the right way to continue.
Relevant answer
Answer
sorry I do not have the expertise to answer this question.
Regards