287 views
What is Data Acquisition System (DAS) ?

2 Answers

Answer :

Data Acquisition System (DAS)

image


 

•Data Acquisition System (DAS) is a interface between sensor and computer.

•The basic function of DAS is to convert Analogue signal coming from sensor to digital via A to D converter and fed to computer.

•DAS measures the quantity it may be physical or electrical like temperature, flow, level, pressure, voltage, current, sound etc.

•Sensor may be photo sensor, microphone, potentiometer, accelerometer, thermistor, strain gauge etc.

•In most cases after going through sensor signal may need to get amplified.

•Sensor converts the measuring quantity into unified form and then sampled by DAS.

•Sensor is connected to DAS hardware and DAS is connected to computer via Universal Serial Bus (USB).

•DAS hardware is microcontroller and combination of A to D, D to A converters and multiplexers, Random Access Memory (RAM) etc.

•For supporting DAS hardware there is a drivers software in computer.

•Computer process, measure and store the data.

•DAS applications are controlled by computer software made from C language or java.

•Computer analyze those phenomenon.

Like 0 like

Answer :

.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
Like 0 like

Please log in or register to answer this question.

Related questions

54 views

Description : Data logger and its application

Last Answer : Data logger and its application:- A data logger or data recorder is an electronic device that records data over time or in relation to location either with a built in instrument or sensor ... Testing (including crash testing) 8) Motor Racing 9) Monitoring of relay status in railway signalling.

1 answer
185 views

Description : What is the need of data converters? List specifications of DAC.

Last Answer : Need of data converters:  It is often necessary that before processing the analog data, by a digital system, it should be changed to an equivalent digital form. Similarly, after processing the data, it ... 4. Temperature sensitivity 5. Settling time 6. Speed 7. Long term Drift 8. Supply rejection

1 answer
176 views

Description : Which unit holds data permanently?  (A) Input unit (B) Secondary storage unit (C) Output Unit (D) Primary Memory Unit

Last Answer : Which unit holds data permanently?  (A) Input unit (B) Secondary storage unit (C) Output Unit (D) Primary Memory Unit

1 answer
1 view

Description : Is there any data on costs/losses associated with non payers in the health care system?

Last Answer : In the medical literature there are lots of articles that try to quantify the cost associated with non payers in the US health care system. Unfortunately it comes down to interpretation of statistics ... sense of other peoples statistics. Anyhoo have a look at this article from Health Affairs 2008.

1 answer
1 view

Description : What is your data backup system?

Last Answer : answer:My mom uses Carbonite, which I believe just came in very handy after she got a virus and lost the contents of her hard drive. I have not used it personally, though, so I can't speak for it. Myself ... ago and had to wipe my HD. Thank god I had that 150 gig external drive to save all my stuff!

1 answer
1 view

Description : Where can I find a list of data connections?

Last Answer : I’m unclear on your question. Are you trying to find the technical specifications for these things? If so, I’d start with google vga technical specification to get something you can start to work with.

1 answer
4 views

Description : How can I recover data from my deleted Facebook account?

Last Answer : answer:Download your information This does require that your facebook account be active, though. They do maintain your data for at least 30 days, so if it hasn't been that long since you deleted your ... 're not going to get things like usage/marketing data on you or other statistical data on you.

1 answer
3 views

Description : Would it be at all possible to recover data of a deleted Facebook profile?

Last Answer : If you reinstate your account it should just bring (most) of it back up, instantly.

1 answer
2 views

Description : Is 100mb a good data plan for 19.99 on AT&T?

Last Answer : No because 30 a month will get you unlimitted data. Some phones are actually only 20 a month like the first iPhone.

1 answer
3 views

Description : What exactly is push data, and what does it push?

Last Answer : I think you're right. Push data transfers automatically to your phone. If you have an iPhone and a MobileMe account, calender and contact info that you update on your desktop are automatically sent to your ... to launch the mobile app, like Mail or Calender, and have it ask the server for updates.

1 answer
2 views

Description : Choices A. 2.15 B.2.21 C.9.18 D.9.34

0 answers
2 views

Description : If data rate of ring is 20 Mbps signal propagation speed is 200 bms then number of bits that can be placed on the channel of 200 km is

0 answers
7 views

Description : Mention The Different Types Of Data Transfers Possible In The 8085.?

Last Answer : Answer :The various types of data transfer operations possible are: Data transfer is possible between two registers. It is also possible between a memory location and a register. Also it can occur between ... . In reality data is never transferred it can only be copied from one location to another.

1 answer
8 views

Description : Mention The Steps In The Interrupt Driven Mode Of Data Transfer.?

Last Answer : Answer :The steps followed in this type of transfer are as follows: The peripheral device would request for an interrupt. The request acknowledgement for the transfer is issued at the end of ... coordinates by the ISS. Again the Interrupt system is enabled and the above steps are repeated.

1 answer
8 views

Description : What are the hydraulic data required for designing a pump capacity?

Last Answer : Ans: Following are the hydraulic data required for designing the pump capacity a. The depth of the Bore or well (suction height/ below ground level) b. The delivery light. c. The yield of the Borewell. d. The horizontal distance of the pumping from bore well where planned to deliver.

1 answer
85 views

Description : Find out number of data lines required to interface 16 LEDs arrange in the 4 x 4 matrix form.

Last Answer : 4+4=8, eight lines are required for 4x4 matrix of 16 LEDs

1 answer
207 views

Description : Calculate the size of memory address space for a 16 bit data and 20 bit address bus. A) 1 MB B) 2 MB C) 3 MB D) 4 MB

Last Answer : Calculate the size of memory address space for a 16 bit data and 20 bit address bus. A) 1 MB B) 2 MB C) 3 MB D) 4 MB

1 answer
679 views

Description : Which of the following is the product of data processing:  (A) Information (B) Data (C) Software programme (D) System

Last Answer : Which of the following is the product of data processing: Information 

1 answer
187 views

Description : Explain data transfer mechanism in I2C protocol. Compare it with CAN and USB protocol based on bit rate and area of applications.

Last Answer : I2C (Inter-Integrated Circuit): I2C stands for Inter-Integrated Circuit. I2C is a serial protocol. It was developed by Philips Semiconductor. I2C bus have two communication lines. One is serial data ( ... Mbps this is used for lower speed devices. Using USB we can connect upto 127 devices.

1 answer
2.5k views

Description : Draw block diagram of Data Acquisition System (DAS). Write function of each block.

Last Answer : Data Acquisition System(DAS) : - (Definition) - The function of DAS is to collect the input data efficiently, accurately, simultaneously to store and display the data. It consists of sensor or transducer ... - to output od DAS is provided in the form of display or plot or recoded in recorder.

4 answers
1 view

Description : What factors do YOU think have contributed to the increasing divorce rates since the 70's?

Last Answer : The slow realization by women that they are people, too. That they deserve happiness and fulfillment, and that those things don’t happen just because they’re married. That they can be self sufficient, independent, and strong on their own.

1 answer
2 views

Description : Twisted pair or Coaxial (kind of technical, see details)

Last Answer : answer:There are economics that get into the picture here, too. The cable company will have bandwidth caps (300gb/month) whereas the fiber provider is less likely to. At a distance of 1000 feet, coax ... which wires tend to expand. Will you see a difference in speed at that distance? Probably not.

1 answer
1 view

Description : How do they make sure the signals being sent by Voyager get to earth in a state we can read?

Last Answer : answer:Every datacom (even on earth) has some sort of error correcting mechanism. In the early days they used parity checking, but now there are far more sophisticated ways to calculate a ... on your cell phone, your internet connection, and even your telephone, except much more sophisticated.

1 answer
3 views

Description : How can I recover large text strings Excel changed into # symbols?

Last Answer : I think I’d use a simple text program like Notepad to open the files and see if the URLs are stored in the file. If not, you are well and truly screwed would be my guess.

1 answer
1 view

Description : How can I create this graph in Excel with a table of start and end times?

Last Answer : answer:That is pretty advanced graphing. If you need to develop complex statistical or engineering analyses, you can save steps and time by using the Analysis ToolPak. You provide the data and parameters for ... is not listed in the Add-Ins available box, click Browse to locate it. From Excel Help

1 answer
2 views

Description : Isn't "mad science" actually "mad engineering"? Can you find me an example of "mad science" in popular media?

Last Answer : I think you're looking in the wrong place mad science is every time plastic surgery is performed every time a commentator uses fiery retoric to incite people whenever religious NUTS use a god ... shit Oh surely you can evoke Pavlovian responses from people, are you looking for hard science?

1 answer
1 view

Description : Can you recommend a site for online questionnaires?

Last Answer : I’ve used form assembly before, and it has worked well for me.

1 answer
1 view

Description : Anywhere I can get current U.S. birth rate stats by ethnic group?

Last Answer : This page from the Statistical Abstract of the United States 2010 will do it for you. Just be aware that the data from the current census are not tabulated yet so the information will be somewhat older.

1 answer
3 views

Description : How can I apply an excel formula to every seventh line?

Last Answer : answer:I just did this: =IF(MOD(ROW(),7)=0,SUM(A1:A7),0) and it works. your formula doesn’t have anything to do if the mod result comes up false.

1 answer
4 views

Description : Where can you find a Wal-Mart Growth Chart?

Last Answer : answer:Yahoo! Finance and Wal-Mart Corporate website

1 answer
2 views

Description : Who has experience resurrecting a harddrive with a seriously fsck'ed up FAT?

Last Answer : Sorry Fenris, the only solution I can offer after all you’ve tried is advanced data recovery from a company like Ibas. It’s not cheap tho:-(

1 answer
1 view

Description : Windows software for making nice graphs?

Last Answer : Microsoft Excel.

1 answer
2 views

Description : Where can I find a mac utility or terminal script to read the contents of a smart card?

Last Answer : You “found” a reader, and then you “found” a card. I know, ask at your local Police station – Police Officers can be very helpful when dealing with “found” items. (The data is proprietary and encrypted – if you don’t have the appropriate software it won’t do you any good.)

1 answer
2 views

Description : Anyone with FlexPay from T-Mobile and a Blackberry, please help!

Last Answer : I don’t believe there are any carriers who will sell you a data plan without a voice plan. It’s their job to suck as much money out of you as possible.

1 answer
2 views

Description : What is the average age of fluther users?

Last Answer : I’m 27! Kinda young, I know… LOL!!

1 answer
0 views

Description : Ideas for using a database? Any good opensource ones?

Last Answer : answer:I'm not sure you have a good understand of what a database is A database is just a way of storing and structuring data that can be retrieved using a query language (typically SQL). ... MySQL or PostgreSQL. For what you are attempting to do, either one should be more than sufficient.

1 answer
2 views

Description : What is the breakdown of expenses for low-income families?

Last Answer : There is no single answer to this obviously. Here is a report with several data points. Start with Figure 2.

1 answer
2 views

Description : What program will allow me to burn DVDs (or CDs) in batch mode?

Last Answer : Well, I actually answer this time seeing as that I forgot to post it last time round. What I was going to say, surely it's cheaper and much more efficient to buy an external HDD and backup onto that surely ... for a long while may turn something up, I'll see what I can find if anything at all :S

1 answer
4 views

Description : Del.icio.us again: add to old 2005 account or start fresh?

Last Answer : Start fresh.

1 answer
6 views

Description : What is a Processing Rule?

Last Answer : Every DP service will have a processing policy and every policy will have processing rules.  Request rule to handle request messages  Response rule to handle response messages  Error Rule to handle error scenarios

1 answer
82 views

Description : characteristics of Hi-Fi amplifier system.

Last Answer : Characteristics of HI-FI amplifier: 1. Signal to noise ratio should be better than 50dB. 2. Frequency response should be flat within +-1dB. 3. Nonlinear distortion should not be more ... provided. 6. Environmental conditions should be such as to eliminate the external noise in listening room. 

1 answer
65 views

Description : DTH System

Last Answer : Outdoor unit: It consists of a receiving antenna, low noise amplifier & converter the receiving antenna is parabolic reflector with a horn as the active element. The horn can be ... fed to the normal domestic TV receiver, which after due processing reproduces picture & sound. 

1 answer
169 views

Description : Describe the function of MUSE system for HDTV.

Last Answer : Bandwidth can be reduced by MUSE (Multiple Sub -Nyquist Sampling Encoding) system MUSE stands for Multiple Sub-Nyquist sampling encoding and is an HDTV bandwidth compression schemedeveloped by ... digital Audio system is called DANCE (Digital Audio Near-Instantaneous Compression and expansion). 

1 answer
92 views

Description : requirements of a distribution system

Last Answer : Following requirements of a distribution system.  1. Layout should be simple in design. 2. It should have less initial cost 3. The distribution system should have minimum distribution ... stability of existing distribution system. 15. Time required for completion of work should be less. 

1 answer
144 views

Description : Why radial distribution system used for short distance ? 

Last Answer : Because of following disadvantages radial distribution system is not used for long distance:  Since there is only one feeder to DTC feed at one point so, 1) There is no reliability ... more time for fault finding & repairing Hence radial distribution system is used for short distance.

1 answer
301 views

Description : vertical deflection system and explain its operation.

Last Answer : The main function of the vertical deflection system , is to provide an amplified signal of proper level to derive the vertical deflection plates without any distortion. For amplification of the ... suppression, reduced nonlinear effects because none of the plates are at ground potential.

1 answer
71 views

Description : Working of Simple Vapor absorption system

Last Answer : Working of Simple Vapor absorption system:  A Simple Vapor absorption system consists of evaporator, absorber, generator, condenser, expansion valve, pump & reducing valve. In this system ammonia ... where there is scarcity of Electricity and it is very useful at partial and full load. 

1 answer
961 views

Description : Draw block diagram of CNC system and state function of each block.

Last Answer : (i) Input Devices: These are the devices which are used to input the part program in the CNC machine. There are three commonly used input devices and these are punch tape reader, magnetic ... Unit: A monitor is used to display the programs, commands and other useful data of CNC machine. 

1 answer
60 views

Description : Write four advantages of FMS (Flexible Manufacturing System).

Last Answer : 1. Large variety of same products 2. Profitable investment. 3. Requires limited inventory. 4. Low labor cost. 5. Flexible system. 6. Speedy production. 7. Improve product quality. 

1 answer
257 views

Description : List and explain the components of a hydraulic system.

Last Answer : Components Hydraulic: Hydraulic pump- Supply fluid to the components in the system. Pressure in the system develops in reaction to the load. Hence, a pump rated for 5,000 ... mechanical components and need to be removed along with other contaminants.  Seals, fittings and connections.

1 answer
...