Daq Master Software
Find NI DAQ products from a variety of major buses and form factors, including USB, PCI. Software to Measure Physical Systems with Sensors or Actuators.
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Autonics Daq Master Software
Miniscope DAQ Software PackageThis software allows you to stream and record a video stream from a Miniscope as well as an additional USB webcam. How to useCompile the code using Visual Studio or run the compiled executable located in 'x64/Release'. The executable located in the 'Compiled DAQ Software OLD' is an older version of the software that lacks some of the newer reconnection capabilities.
Getting StartedThis software has been test on PCs running Windows 10. The '.exe' requires the additional download of a couple OpenCV 3.4.3 dll's to run. See below for how to download them. PrerequisitesYou will need to download the OpenCV 2.4.13.dlls and place them in the same folder containing 'MiniScopeControl.exe'. You can download all of OpenCV here,. Find the required dll's in 'opencv/build/x64/vc14/bin'.
You need:. opencvcore2413.dll.
opencvhighgui2413.dll. opencvimgproc2413.dll.
Data acquisition systems, as the name implies, are products and/or processes used to collect information to document or analyze some phenomenon. In the simplest form, a technician logging the temperature of an oven on a piece of paper is performing data acquisition.As technology has progressed, this type of process has been simplified and made more accurate, versatile, and reliable through electronic equipment. Equipment ranges from simple recorders to sophisticated computer systems, or even smart phones turned into portable data acquisition systems.Data acquisition products serve as a focal point in a system, tying together a wide variety of products, such as, or.Learn more about Data AcquisitionAnalog-to-digital converter (ADC)An electronic device that converts analog signals to an equivalent digital form. The analog-to-digital converter is the heart of most data acquisition systems.Digital-to-Analog Converter (D/A)An electronic component found in many data acquistion devices that produce an analog output signal.Digital Input/Output (DIO)Refers to a type of data acquistion signal. Which are either one of two states. These states may be on/off, high/low, 1/0, etc.
Digital I/O are also referred to as binary I/O.Differential InputRefers to the way a signal is wired to a data acquisition device. Differential inputs have a unique high and unique low connection for each channel. Data acquisition devices have either single-ended or differential inputs, many devices support both configurations.General Purpose Interface Bus (GPIB)Synonymous with HPIB (for Hewlett-Packard), the standard bus used for controlling electronic instruments with a computer. Also called IEEE 488 in reference to defining ANSI/IEEE standards.ResolutionThe smallest signal increment that can be detected by a data acquisition system.
Resolution can be expressed in bits, in proportions, or in percent of full scale. Wireless Data Aquisition SystemsWireless data acquisition systems can eliminate costly and time consuming field wiring of process sensors. These systems consist of one or more wireless transmitters sending data back to a wireless receiver connected to a remote computer. Wireless transmitters are available for ambient temperature and relative humidity, thermocouples, RTDs, pulse output sensors, 4 to 20 mA transmitters and voltage output transducers. Receivers can be connected to the USB or Ethernet port on the PC.
USB Data Acquistion SystemsThe Universal Serial Bus (USB) is a new standard for connecting PCs to peripheral devices such as printers, monitors, modems and data acquistion devices. USB offers several advantages over conventional serial and parallel connections, including higher bandwidth (up to 12 Mbits/s) and the ability to provide power to the peripheral device.
USB is ideal for data acquisition applications. Since USB connections supply power, only one cable is required to link the data acquisition device to the PC, which most likely has at least one USB port. Data Acquisition Plug-in BoardsComputer data acquisition boards plug directly into the computer bus. Advantages of using boards are speed (because they are connected directly to the bus) and cost (because the overhead of packaging and power is provided by the computer). Boards offered are primarily for IBM PC and compatible computers. Features provided by the cards can vary due to number and type of inputs (voltage, thermocouple, on/off), outputs, speed and other functions provided. Each board installed in the computer is addressed at a unique Input/Output map location.
The I/O map in the computer provides the address locations the processor uses to gain access to the specific device as required by its program. Troubleshooting Thermocouple Input DevicesTesting a measuring device is as simple as connecting a short across the input terminals.This applies to ALL thermocouple measuring devices, such as plug-in cards, dataloggers, panel meters, handheld meters, temperature controllers and recorders.FactorsThere are many factors that can give a thermocouple measuring device an erroneous reading, such as noise,ground loops and broken thermocouples. When encountering trouble measuring thermocouples, the first testshould be the SHORT test, since it literally takes minutes and usually answers many questions.For example, if a thermocouple is connected to a plug-in card (designed for thermocouple inputs), and erratic readings are noticed, it may be the result of a ground loop or noise induced on the thermocouple wires. It may also be a faulty plug-in card. At this point, there is a lot of uncertainty.Simply remove the thermocouple and connect a piece of copper wire across the input in its place (also, connect another piece of wire from the (-) to LL Gnd. If you have more than one thermocouple connected, remove ALL of the thermocouples and short all the active inputs. They should all read room temperature, and should be fairly stable.If the readings are stable and read ambient temperature when shorted, then we know that it is not the card, nor the PC, nor the software, but may be in the wiring or even a broken thermocouple.
This will not solve all of your problem, however it is a simple first step that will help to narrow down the possibilities.If, on the other hand, the readings are still erratic, then it may be the board and it may need to be returned for repair. It would be a good idea to try another PC to eliminate the possibility of a bad PC slot or power supply, etc.Also, if a custom program is being used, it would be a good idea to test the board with factory supplied software.If it is determined that the board works fine with a short, then the thermocouple wiring must be checked. Re-connect the thermocouple, and try moving the wiring around a bit.It is better to go a longer distance and work AROUND a noisy piece of equipment, such as a motor or compressor than to go directly over this equipment. Sometimes, it is necessary to use SHIELDED thermocouple wire, where the shield is connected to a suitable ground on ONE END ONLY.Thermocouple InputSometimes, it is necessary to completely electrically isolate the thermocouple from what you are measuring. If you are inserting a probe into a machine, there may be voltages present which can cause current to flow into the thermocouple right through its steel sheath, causing erratic readings.The solution is to use UNGROUNDED thermocouples, where the sensor does not touch the sheath, therefore isolating it.
This may reduce response time a bit, but will stop any ground loops. If connecting a bare wire to a metal surface, a neat trick would be to use an non-conductive paint and cover the thermocouple tip, making sure the paint can handle your temperature range.Or, put a small piece of tape on the surface, or use OMEGABOND™ epoxy to isolate the wires. In extreme cases, or areas where tape or paint cannot be used, signal conditioners can be used to isolate a thermocouple up to thousands of volts.This is the most expensive method however, is the most fool proof, providing electrical isolation, noise filtering and signal amplification as well as safety.