my accelerometer outputs a charge proportional to the acceleration to which the accelerometer is subjected to.Can the labview output the waveform in voltage?if not how can i overcome the problem ?

[dib]

Im am using a labview RT with PCI-7030 DAQ board and a CB-68LP .This is urgent.can somebody please help?

[JeffBoettcher]

I'm not sure I completely understand your application, but LabVIEW RT and a PCI-7030/60xxE DAQ device can do both single-point and waveform analog output and analog input. Your application would determine whether you wanted to do a buffered (waveform) operation or perhaps repeated single-point output. If you do single-point output, the frequency of the signal is going to be an issue as you may run into the loop rate limits of the 7030 device.

[Ben]

I suggest you consult the manifactuer of the devices to see if they sell or can recomend signal conditioning gear to output a voltage or a current.

Generally speaking, the charge can be measured by using a capacitor (where V=Q/C) but the leakage current that is introduced when monitoring the voltage across the cap will adversly affect the measurements.

I have designed circuits to do this but it quite un-orthodox.

Ben