Having issues capturing data points using Dasylab and Instrunet

[mlowry]

Hello,

 

We are currently having issues being able to capture data points within our program. We are trying to capture a pressure rate of 400Hz or faster, by not being able to do so we are missing out on getting the data peak during the testing. Not sure if the instrunet board(s) that we are using will allow us to capture that information or not. 

 

Any guidance or help will be greatly appreciated as our unit is currently offline.

[DAQman]

Hi Michael,

We are unfamiliar with GW Instrument hardware. It's best if you reach out to them about their hardware capabilities.

I believe you guys use DASYLab 13. The following link discusses installing their DASYLab support. http://www.gwinst.com/software/dasylab/installation.html

What happens when you run your worksheet program - are three error messages?

Best regards,

John

 

[mlowry]

My apologies, but we are looking to change from our instrunet to a solution that you would offer to capture the data from a Kistler pressure transducer at the 400Hz. The instrunet board we are currently using does not have a high enough capture rate to capture such high frequency. 

[DAQman]

If you let me know the Kistler part number, I look up the data sheet and recommend a device.

[mlowry]

Here are our Kistler part numbers:

4045A50
Piezoresistive Absolute Pressure Sensor

4624AK21
Piezoresistive 1-channel amplifier set

[DAQman]

Consider using the USB-231 https://digilent.com/shop/mcc-usb-230-series-multifunction-usb-daq-devices/ it's a 16-bit device with a fixed +/-10 volt range. You can run it in single-ended mode for 8 channels and it has plenty of speed. The amplifier can condition the pressure signal to a 0-5 or 0-10 volt signal. The temperature signal looks to be -3.5 to 11 volts with zero being zero Deg C. 

Or you could use the USB-1608G https://digilent.com/shop/mcc-usb-1608g-series-high-speed-multifunction-usb-daq-devices/. The USB-1608G has programmable voltage ranges. For example, if the output is 0-5 you could use the +/- 5-volt range. It also has more channels.

Best regards,
John