Dynamic strain measurement
My experiment involves the measurement of strain on the specimen on the application of torque.
I'm using SC-2043SG for the quarter bridge ,with an internal excitation of 4.13V.
I'm using PCI-MIO-16E4 DAQ device.
The DAQ Driver used is NI-488.2 2.30
Measurement and automation explorer version is 3.1.1
The problem is that when i apply 1.5 Nm and 2Nm torque, both are showing the same strain, 243 microstrain.
Whereas in the digital multimeter they show .7mV and .9mV respectively.
The strain is supposed to vary , which is not happening for every 0.5Nm. The multimeter is showing a
variation of .1mV for every 0.5Nm increase in torque. But this is not being shown in the strain output. Only
when it reaches 3Nm it shows 486 Nm. But this remains the same even for 4Nm.
external signal conditioning is also not helping.
The automation explorer test run is always showing the same value about some -2.Its not at all changing inspite of the different toques applied
I' ve used the traditional NI DAq version 7.4 0f0.
I had first connected to active strain gauge to a bridge completion circuit using 3 other SGs to form a full bridge. And then i have tried the method specifeid in the SC-2043-SG manual by following these steps.
SW1 for power supply
W1 and W3 For excitation
W8 for excitation
W2 for channel 0 input
W7 for HB for channel 0
placed the 120 Ohm bridge completion resistor in the socket R52
connected the lead wires from the active strain gauge to the +EX0 and +CH0 screw terminals.
I have connected nothing additional to what i have specified here.
I'm getting the same kind of output for both methods.
The outputs are fluctuating between values.
I don't know what is wrong in my configuration.Plz help.
i'm attaching the results of the torques applied in the order 1Nm,1.5Nm,2Nm,2.5Nm,3Nm,2.5Nm,3Nm,3.5Nm,4Nm
Thanks a lot
Document.rtf 873 KB
I am looking at the possibility of using an SCXI-1531 module to take measurements from a single strain gauge. I am only interested in the dynamic content of the signal and so am considering using the constant current excitation method which does not
I am doing a school project that involves gathering stress strain data from a SCXI1000 chassis. It is equipped with a 1520 card w/SCXI 1314 terminal block connected to an extensiometer and strain gage. It also has a 1120 card w/SCXI 1303 terminal b
Sir, My experiment involves the measurement of strain on the specimen on the application of torque. I'm using SC-2043SG for the quarter bridge ,with an internal excitation of 4.13V. The problem is that when i apply 1.5 Nm and 2Nm torque, both are sho
I'm using LABVIEW to do some instument control and data acquisition, actually, we are doing some Bio-mechanical study on tissues( a piece of skin), we use motors to strech the skin in two directions and use a camera to monitor the motion of spots att
I used the SCC-SG01 to measure the strain. I need a trigger to activate the gages to get the data when the test happen. Can I use the SCC-DI01 as a trigger for gages for my test? If I can, how I can do it? Hello hopezx, The 2345 is a fairly passive
Or anybody has similar application, it would be very grateful if you can share your experience.Many thanks for your information. We are about to investigate the dynamic performance of soil anchorage subject to dynamic impulse in a geotechnical centri
We're looking to replace our existing end-user development environment and believe Flex 2 may be able to satisfy our requirements. However, without spending a month trialing the product I thought some existing user(s) could suggest (based on personal
Hey Claudius! After perusing the reviews for you, a main request is gaining support for dynamic type. Or having the option to change text size in app. Some consumers are straining their eyes to see small text. After Changing my app to support Dynamic
I would like to get the real time updates on end hosts on my switches. From reading other posts it sounds like I need to do the following: 1. Configure DHCP snooping on the switches. 2. Enable the mac notification traps on the switches and verify the
Hi hope someone can help on this - I've posted the code on the FoEd Backend Blight - with no takers/success yet - I've created a jobs page using DWCS3 which has a dynamic drop down menu filtering the 'countries' that jobs are located in. When I intr
Is there a max number of AE comps that can be dynamicly linked in a single Premiere sequence? ThanksI have never found one. I suppose that memory might be a limitation. While playing around with the concept of some limitation, I linked to some comps
Dear NI, I am acquiring the 32 channels of Strain data.. about 1000 Samples/sec. i want to store the all 32 channels of dynamic data ( all samples) for the test of 30mins. which file format that can be utilize for this data logging.
I find myself generating dynamic html within servlets like this: os.println("<TD ALIGN=RIGHT VALIGN=TOP><FONT SIZE=1>Website creation & design, by <A HREF=mailto:" + webmaster + ">Blah, blah, Inc.<BR>"); os.
I am designing a bi-axial machine which meant for a fatigue test. Could someone recommend me where to get a dynamic load cells and as well non-contact strain measurement? Thanks.Hi Alvin788, Do you presently use any hardware to measure these or are y
Hi , I have created a dynamic editable ALV whose displayed structure can be changed at runtime based on the selection in a drop down list value selector. Im trying to capture the values entered in the ALV into an internal table before the user change
Hi, In Appointment if the importance is HIGH i made Location as mandatory.For this i enhanced BT126H_APPT/ApptDetails. In the get_p_location() method of BTACTIVITYYH i have written the code. Now the problem is Error message for this dynamic mandatory
If table testrh2 has the following columns and data col1 --> NULL col2 --> 2 and table testrh has the following columsn and data col1 --> NULL How could I write a dynamic SQL statement to join on the nulls? I've written the following block as a s
Dear All, I am using Dynamic CRM 2013 online. For quote, I have workflow and Dialogue processes for review process. On approval, I want the system to generate a PDF of quote report, attach the PDF and email it to the Customer. Better I would like, Wh
We need to customize "Print Quote" in Quoting As part of this we will be having 2 custom templates (will be related to data definition "Quote Printing", ASOPRT). These two templates have to be defaulted based on the quote status - one