Site Search:

DATAQ Instruments Application Notes and News

Using Analog Inputs as Digital Inputs

Data Acquisition > Software > WinDaq We’re often asked how to best measure a discrete input with an analog data acquisition system. Many of our products provide discrete (digital) input ports that can be read with WinDaq data acquisition software, but sometimes it’s better to acquire the discrete input along with the analog data through Read More

What is Data Acquisition and Why is it Important?

Data Acquisition > Products First time visiting our Blog? Maybe you entered a search term in Google and stumbled across the site? If so, you might be asking yourself “What is all this ‘data acquisition’ mumbo jumbo?” The process begins with sensors (strain gages, thermocouples, etc.). Electrical signals from the sensors are fed into data Read More

Frequency Measurements, Part 3 of 3

Data Acquisition > Starter Kits This final installment describes a ratiometric approach to frequency measurement used by the DI-149 and DI-155 data acquisition starter kits that resolves the problems encountered by pure analog and other digital techniques. As a recap, pure analog approaches will not allow very low frequency measurements, and although typical digital approaches Read More

Frequency Measurements, Part 2 of 3

Data Acquisition > Starter Kits In Frequency Measurements Part 1, I described why you might need to include frequency as part of a complete data acquisition or data logger measurement. In this part I’ll explain how a data acquisition or logger system typically makes a frequency measurement and point out the pitfalls of each approach. Read More

Frequency Measurements, Part 1 of 3

Data Acquisition > Starter Kits Since our newest data acquisition starter kit (DI-149) supports a frequency measurement function I thought I’d burn a few posts to talk about that feature in general terms. In this first part I’ll talk about where frequency measurements are typically encountered with examples of the specific information that can be Read More

First Impressions of the DI-149 Data Acquisition Starter-Kit

Data Acquisition > Starter Kits > DI-149 At first glance, the DI-149 looks very similar to the DI-145, DATAQ’s entry-level starter kit, released earlier this year. A closer look reveals much more. The DI-149 includes eight, fixed-differential analog inputs, four digital outputs a rate channel and a counter channel. Much more robust than its predecessor, Read More

Strain Gage Module Functionality Testing

Data Acquisition > Mixed Measurements > DI-718B Strain gage modules are used in data acquisition products to provide a supply (excitation) voltage to strain gage-based transducers and to amplify the output, which is then passed on to a data acquisition instrument such as the DATAQ Instruments DI-718B. Often, when a test engineer or maintenance technician Read More

Ambient Temp Affects Thermocouple Measurement Accuracy

Data Logger > Thermocouple We had an interesting situation develop recently for a data logger that we resell. If you follow the link you’ll see that this is an inexpensive, thermocouple (TC) data logger that’s actually quite popular. This particular application needed to monitor the temperature of biological samples shipped via FedEx over a four-hour Read More

Capturing the Quake of August 23rd, 2011

Data Acquisition > Software > WinDaq On August 23rd, 2011 an earthquake centered in the state of Virginia, at a depth of 3.7 miles, shook much of the Atlantic seaboard, New England and the Midwest. Felt as far West as Detroit, Michigan, the magnitude 5.4 quake registered atop the JW Marriott Hotel in Indianapolis, Indiana. Read More

Extracting Volume from Flow Using Counters

Data Acquisition > Starter Kits > DI-149 Counters are used in a wide variety of data acquisition applications, from measuring radiation exposure to counting the number parts coming off of an assembly line. A particularly useful counter function is extracting volume from flow. This information is critical in a host of industries. In the aerospace Read More