- Pickering Interfaces, a provider of modular switching and signal simulation solutions for electronic test and verification, has expanded its family of high-density precision resistor modules in PXI and PXIe format.
The updated 40-297A (PXI) and new 42-297A (PXIe) modules are now available with additional resolutions: 0.125Ω, 0.25 Ω, 0.5Ω, 1Ω, 2Ω, 4Ω and 8Ω. Their resistance range extends to 85.3MΩ on a single 6-channel module. Their tuning accuracy increases from +/-0.2% +/- resolution to +/-0.1% +/- resolution.
“The new modules are a suitable solution for functional test systems in applications such as motor-controller testing where resistive sensors (thermistors / RTDs) provide information such as temperature and altitude. They are suitable for applications in areas such as satellites, aerospace and defense projects. The product selector on our website allows users to determine the right model for their application and compare the specifications of several models,” reports Paul Bovingdon, simulation product manager at Pickering Interfaces.
Channels in the 4x-297A module can be set to short or open circuit to simulate wiring or sensor failure. Up to 18 channels can be accommodated in a single slot module. The use of resistor value calls simplifies software control. The module calculates the channel parameter closest to the requested value and sets that value. The user can query the module to determine the actual resistance setting used by the module.
A calibration cable can be attached to the module. This allows a digital multimeter to be used to check each channel. This simplifies the process of checking the calibration of the module. The check is performed when the object under test is disconnected from the module. VISA and Kernel drivers for Windows, a universal driver for Linux and support for other real-time systems such as QNX and LabVIEW RT are provided. As with all Pickering modules, these come with a three-year warranty.