Sampling rate

[realbasil]

Bill,

No, I don't have to look at the data in real time. 

I have to capture as much data as possible in say 4 seconds and then evaluate it later. 

[mcduff]

---

@realbasil wrote:

Bill,

No, I don't have to look at the data in real time. 

I have to capture as much data as possible in say 4 seconds and then evaluate it later. 

---

If this is the case, why is there a problem collecting data every 100ms? Or even capturing the whole waveform over 4s then analyzing?

mcduff

PS Look at the DAQmx example Continuous Acquisition with Events. It is a useful example.

[realbasil]

You got it right. The test specimen is reacting to a power failure, so I need that instantaneous response. I don't need real time data. I just need to measure the instantaneous response to 1ms time gap. 

[realbasil]

Mcduff, 

The pass or fail criteria depends on the data at a particular ms. Say for example. I want to know if the test specimen reaches a particular position at 50ms. If it reaches the position only after 50ms, it is a fail. 

[crossrulz]

---

@realbasil wrote:

Mcduff, 

The pass or fail criteria depends on the data at a particular ms. Say for example. I want to know if the test specimen reaches a particular position at 50ms. If it reaches the position only after 50ms, it is a fail. 

---

So measure your input and the output result with your DAQ.  You can post process the reaction time.