{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

lab_5-_introduction_to_daq_np

lab_5-_introduction_to_daq_np - MAE3113: Lab5 (DAQ...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
MAE 3113: Measurements and Instrumentation Lab 5 Introduction to Data Acquisition (DAQ) Written by: Jeremy Morton and Nick Phelps Objective The objective of this week’s lab is to construct an alarm system to monitor two pieces of  equipment, in a factory-like setting.  The alarm system will be build using sensors that are  connected to a data acquisition unit and configured with LabView software.   The two pieces of equipment to be monitored are a pressurized air tank and a shaker motor.  A  120 Ohm strain gage has been attached to the pressurized air tank, which will allow for the  pressure in the tank to be indirectly measured.  The shaker motor is being monitored with an  accelerometer to measure vibration, a microphone to measure acoustic intensity, and a  thermocouple used to measure the temperature. The following criteria will be used for monitoring. If any of the following conditions are met the  alarm should go off. The pressure in the air tank exceeds ___ psi The vibration as read by the accelerometer is greater than ___ The magnitude of the signal from the microphone exceeds _____ The temperature at the input wires is greater than 130 ºF. The signal from the accelerometer is grater than ____ , while the signal from the  microphone is greater than ____. An Overview of DAQ  Data Acquisition (DAQ) is process of collecting physical measurements and converting them to a  format such that they can be stored and used electronic on a device such as a computer.  Given  that physical measurements come in different forms, various methods must be employed when  preparing the input signals. The various sensors are first feed into a signal conditioner.  The signal conditioner used in this  laboratory set-up is the NI SC-2345, which has 16 channels of input.  The signal conditioner is  initially empty, but the top lid can be opened where various modules can be plugged in.  The  modules are specific to the type of measurement to be made (voltages, acoustic, strain, etc…).  The signal conditioner can take both analogue and signals.  Analogue signals are converted to  digitized signals, and are done so at a predetermined sample rate.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Once the signal has been conditioned properly and is in an acceptable form, the DAQ unit  handles the process of supplying the signal to your computer.  In the lab there are two different  DAQ devices that can be used.  One of the DAQ devices is a PCI card that is a board that is 
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern