05/13/2019

Utility And Purpose Of Data Acquisition Systems And Data Loggers

The main use of data acquisition systems is to take samples, record, store and to further analyze real time data. The recorded data is then taken from these systems then fed into a proper computing device and is further stored to carry out analysis at a future point of time.

In the market, you will be able to find different types of data recording equipment designed and offered for varied purpose. Data acquisition is often connected with data logging, however each of this is different from others and serve different purpose as well. Both are used interchangeably to a great extent. To be clearer, it can be said that data loggers are usually subset of DAQ systems.

There are some advanced data acquisition systems, which are specifically made for large size companies and manufacturing companies. The systems developed for these companies are usually very complex in nature and make use of multi-level software, which helps them in incorporating different parameters at the phase of data output. Some of the systems are made for public use, whereas there are data loggers as well, which is basically used for the purpose of research, manufacturing and mainly for large scale use.

Data Acquisition Systems

It is often abbreviated as DAQ systems, which are usually equipped with different types of electronic devices designed specifically for data recording purpose, storing the data and further analyzing it in the best way over a period of time. In research based projects and in life science, data acquisition has a significant role.

Due to lack of these systems can simply result in great deal of research time and can even result in loss of valuable data in absence of its storage. This can sometimes even be the reason behind any project failure. Therefore, it can be said that data management holds great importance in different universities in India and across the globe as well.

Data Loggers

To define it in a precise way, these are basically stand-alone electronic instruments, which prove beneficial in recording all types of data in a safe and secure manner. They can also be termed as data recorders. There are also GPS data loggers available in the market, which prove useful tool for businesses to check that whether employees are taking detours from assigned tasks during the entire day. The best thing about these loggers is that it can work efficiently on air, land and even sea and will prove helpful for you in showing the location, you travelled probably on Google map.

They are basically small size machines, which require battery power to operate. You can make use of rechargeable batteries, which can be conveniently used with data logger. The best thing about this type of instrument is that it proves helpful in recording information, without the need of anyone’s presence over there for the recording purpose.

Yes, the batteries need to be changed at regular intervals of time. Further, these devices or instruments can record vital data, which can be used for varied purposes and reasons depending on the type of data acquired in data loggers.

Thus, the use of data acquisition systems and data logger have great significance and are best suitable for data management purpose.

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04/17/2019

How Data Acquisition And Pitot Static Tester Can Work?

There are lots of machines in the category of the test and measurement tools, and people don't know about how they work or what are they actually? First of all, we understand the Cable Tensiometer and then Data Acquisition tool.

1. Pitot Static Tester

The Pitot test unit is usually used to verify the instrumentation of some data and it can do the interconnection of the different system.

To measure the airspeed, the correct functioning of the tester is necessary. The unit is also useful for problem-solving of flight control, pressurization and autopilot control systems.

Considering this equipment, when you use this to solve problems you would like to have the unit in the cabin while the tests are being done. The pivot tester involves numerous test hose segments to reach the static port, but direct observation of the aircraft's indications for comparison is preferred.

A Digital equipment- this tester more tolerant than older components, that’s why it is used in the mechanical field for the measurement.

What it can do?

• The airspeed indication is derived from the pitot (pressure) and static inputs.
• If there is no difference between the pitot and static pressures, the airspeed will remain at 0.

Useful Tips for Pitot Static Tests

• Sometimes the automatic modes can’t work properly, and so for that still prefer to go with the RVSM modes of the digital testers.
• Don't try to replace the data because it is very expensive to replace the data in the tester.
• If you are not completely familiar with an automatic test unit, do not use it.
• It leaks sometimes, so cannot be verified with the test configuration or the aircraft. For that cover the associated parts.
• When you are observing the airspeed indicators in the cabin, apply pressure to simulate a rapid ascent of the speed.

2. Data Acquisition Tool

Data acquisition means to collect the signals from measurement sources and then digitizing the signals for storage, analysis and presentation on a PC.

The acquisition of data starts with the physical phenomenon to be measured. This could be anything like,- the temperature of a room,- the pressure inside a chamber, -the intensity of a light source,-the force applied to an object or many other things.

This systems come in many different forms and offer flexibility when choosing your system.

You can choose between so many different applications such as,

* PCI
* PXI,
* PCI Express,
* PXI Express,
* USB,
* Wireless
* Ethernet data acquisition

Things are included in the tool,

* Signs
* Transducers and sensors
* Signal conditioning
* Controller and application software
* DAQ hardware

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02/09/2019

How Data Acquisition Is Useful To Convert Analogue Signal To Digital?

Whenever you have properties or physical data to measure and then you want to convert into some kind of uniform form that can be analysed, it is called a Data Acquisition.

The data acquisition equipment is designed to convert signals from the physical world into a language that computers understand so that they can then perform various mathematical calculations, provided that the software used provides that output.
Generally, the acquisition of data means acquiring data. However, in computer terminology,
Data acquisition is defined as the process of joining real-world data to produce the data to be manipulated by the computer system.

The signals are obtained using different devices and. Instruments. The acquired data can be stored in the computer using the software provided by the supplier and the control can be done through the use of programming languages.

What about the data acquisition hardware?

The hardware of the acquisition of the data is usually the interface between the signal and a PC. The equipment can be connected with a USB interface connector. The connection with a PC or laptop allows a greater speed in the recording of the data collection and the actual debugging of the data.

• Debugging programs can usually detect and fix the data by completing the missing signal with the most logical step generated by advanced mathematical formulas.

• The data record finds a wide range of applications in a wide variety of scientific and medical research purposes, including ecological cardiology, laser Doppler flow, GPS data logger etc.

• The registration of data is, in fact, one of the most important aspects of quality and quantity control, which determines the final success in an investigation in manufacturing process.

Switch to data loggers:

The data logger systems take analogue waveforms, collected by specific sensors that generate electrical signals in digital data for processing. Most of the computers we think about today are strictly digital, but the first computers in the last century were analogue, so most of us are not familiar with analogue waveforms in any way
Data loggers are significantly different from data acquisition systems, however, in context, both are used interchangeably to some extent. It should be noted that a data logger is a subset of acquisition systems, and all data loggers can be referred that systems, but not the other way around.

It can be used to record waveforms and signals from a various physical system such as pressure, temperature, density, to study seismic activity, humidity, climate transmission, manufacturing, wireless and PC data logging, data processing water, energy and production purposes, and for the monitoring, control and management of companies.

In the end…

Data acquisition systems suggest, are products or systems used to collect data or information from a certain source. And it became popular among many companies around the world.

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