Global Sources
EE Times-India
 
EE Times-India > EDA/IP
 
 
EDA/IP  

Pickering expands PXI with high accuracy RTD simulator

Posted: 15 Feb 2008     Print Version  Bookmark and Share

Keywords:resistance temp detector  simulator  PXI module 

40-262

Pickering Interfaces has expanded its range of PXI products with a new high accuracy resistance temperature detector (RTD) simulator.

The 40-262 is an 18-channel variable resistor module designed to simulate the operation of PT100 and PT1000 RTD's in the PXI form factor. The device provides a resistance setting resolution of better than 10 m⇬ over the entire resistance range and an accuracy of better than 0.1 per cent for all resistance settings, allowing RTD's to be simulated with great accuracy.

The 40-262 uses a design principal that combines fine and coarse control mechanisms in combination with a calibration system. The requested resistance value is provided by the use of resistance calls (in ohms) to the module instead of the alternative approaches, which are based on setting patterns of relay settings.

In addition, the accuracy of the 40-262 is easily supported when deployed in a system. The module includes a calibration port that can be used to calibrate the resistor channels while the unit is connected to the UUT in a test system using an external DMM.

"This approach saves users considerable effort in simulating variable resistance devices, users can simply implement an interface to the simulator based on the known resistance versus temperature curve for the their chosen sensor. The 40-262 achieves this with an accuracy that is at least an order of magnitude more accurate than that achievable by other approaches used in PXI modules," said David Owen, business development manager for Pickering.

Other versions of the 40-262 RTD simulator can be supplied suitable for simulating other types of sensors.




Comment on "Pickering expands PXI with high accu..."
Comments:  
*  You can enter [0] more charecters.
*Verify code:
 
 
Webinars

Seminars

Visit Asia Webinars to learn about the latest in technology and get practical design tips.

 

Go to top             Connect on Facebook      Follow us on Twitter      Follow us on Orkut

 
Back to Top