Voltage Excitation for IEPE/ICP and IOTech 650U

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  Here's an IEPE (source of ICP (r)) of transducors pressure: http://www.pcb.com/products/browse_productlist.asp

  Kistler is another provider.

  To help choose - can you tell us more about what you are going to connect the sensors - what is the unit under test?

  What do you do in the hope of discovering or surveillance of the unit?

• excitement of the thermistor and NI6224 DAQ board / whatever it is quick and (relatively) cheap?

  Hello world

  I need to measure temperatures between 15 ° C to 40 ° C and to resolve precisely the changes in 0.1 ° C. My thermistor has a nominal resistance of 22 kOhm at 25 ° C and the resistance of 14 KOhm at 37 ° C. constant dissipation in air at 25 ° C is 0.3 MW / ° C - but the thermistor will be used in aqueous solution. I have a NI6224 DAQ card with a connector in SCB-68 and Labview 7.

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  In particular:

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  Yes.

  You are correct about both measures ended up alone. The other end of the probe will be connected to the Earth.

  There is no advantage to a measure differential in this situation because there is no true differential signal.  The two voltages are referenced to ground.

  Calibration is always a good idea. Here, he will compensate for differences of Thermistors and fixed any deviation from the nominal value of the resistance.

  Even if your temperature is probably change very slowly, it can be useful to sample at a rate groups and average high of samples to produce a single reading. This can considerably reduce the noise. A common source of noise is the electric current. By sampling at a multiple of the line frequency of power, such as 1200 Hz and then with an average of 1200 samples, you get a reading per second with substantial reduction in 50 or 60 Hz noise.

  Lynn

• HP 15-ac025tx: Please help to find the right driver for Wi - Fi and Bluetooth

  HP 15-ac025tx

  MODEL: M9V00PA #ACJ

  OS: Windows 7 (64-bit)

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  Unknown device

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  Anish

  New Delhi

  Hello:

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  http://h20564.www2.HP.com/hpsc/SWD/public/detail?swItemId=ob_154511_1

  Graphics card: first install the Intel driver and restart.

  This package provides the driver that allows graphics Intel high definition (HD) in the notebook models that are running an operating system supported. If the video output high-definition multimedia interface (HDMI) is supported, this package also installs the HDMI Audio Driver.

  File name: sp72651.exe

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  Acquisition of ICP data and Signal Processing controller:

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• motion control for vertical actuator and data acquisition

  Hello

  I am a researcher (a branch of civil engineering) geotechnical engineering and I have very little knowledge about the acquisition of control and data motion, so would need a lot of help from the experts OR. I have only knowledge base on these 2 aspects based on my reading of some materials on the Web site of NOR and youtube videos, so I hope that you bare with me . Here are my questions:

  I am trying to build an actuator which will be used to push a probe (a penetrometer with a load cell to measure the resistance of a soil sample), resembling the concept, photography in the attached file. I need to have these criteria for my system:

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  4) able to control the actuator to a PC (speed and posotion) and monitor data from transducers and data log time even the transducers.

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  Thanks for your help.

  At these rates, you will need to run the sensor for the cDAQ.  You can configure the analog output on the Tritex nationally on the position.  There is an adjustable filter that you can set in order to get a clean enough to 300 Hz signal.  When you learn about the Tritex, make sure that let you them know what comms and e/s that you want to use.  If I remember, not all options have worked together.  The analog output may need to be my, but you can put a resistance through the acquisition of input data to get the voltage instead.  I don't remember all the details.  You should really not too much on the Tritex/LabVIEW side.  You will send your movement parameters (beginning of end of race, speed, position, accel, cut), and if you cycle (I believe you) or simply running in a loop.  You could also just be able to use the functions of jog.  When you get close to knowing exaclty what you need, PM me and I'm sure we can work something out with the drivers.  You need only the basics.  In fact, you could probably do this all your movements via digital and analog i/o.

• Inputs voltage DAQ affecting each other and the camera, they save you of

  Hello world!

  I use ELVIS II + and LabVIEW 2012 to register a device with a resistive sensor voltage (voltage see with ELVIS II.jpg for VI). The device (device + ELVIS II Schematic.jpg) measure the voltage across the resistive sensor and is controlled by a msp430. If the msp430 believes the change of voltage of the probe is above the threshold, a light is on. There is a motor function on the device and the LED is normally not on when the engine is turned on. I found that registration with the acquisition of data affects the behavior of the device. The reasons daq hardware and devices are connected. During data acquisition does NOT record, gross and analog sensor in tensions are constant (and the LED off) while the engine is on (Figures.doc; (A). when data acquisition IS recording, the engine power seems to distort analog in / raw voltage of the sensor causing the LED lights up (Figures.doc; (B).

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  2 separate channels of raw and engine sensor in the wizard DAQ (Figures.doc; C: shows engine and raw sensor separated by A_VCC. Figures.doc; D: where engine and gross sensor are side by side). I don't know why the order of the channels in the DAQ assistant would affect the behavior of the sensor signal.

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  Thank you!

  If your device has no acquisition of simulteanous, then each channel is multiplexed in the ADC. It has a capacity of entry inside your device, which gives it a 'memory '. If the voltage stored in the capacitor is not unloaded a scan before the next scan starts, then the second scan will "remember" is the result of the first analysis, give you really weird problems. More source impedance on the canal e e greater probability that the signal from the previous 'remembered '. That's why the order of the questions, the higher source impedance going first.

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