Description
The Part Number for this device is 782856-02, categorizing it under PXI Source Measure Units. Specifically, the model in discussion is PXIe-4139, known as the NI PXIe-4139 System SMU. This system features Guard and Sense terminals on the output connector, which are crucial for its operation.
The Guard Terminals are used to implement guarding strategies in cabling and test fixtures, which is essential for maintaining signal integrity and reducing noise. On the other hand, the Sense Terminals are designed to compensate for voltage drops in cables and switches when remote sense is enabled, ensuring that the voltage applied to the device under test is accurate.
One of the key features of the PXIe-4139 is its Timing and Triggering capabilities, allowing for exact control of sourcing and measuring operations. This is further complemented by the Sequence Engine, which enables precise control over sourcing and measurement functionality for fast, deterministic timing. The Sequencing Method allows output values to be applied in sequence or triggered to change at an exact time, facilitating complex test scenarios and precise control over the test sequence.
| Specification | Detail |
|---|---|
| Part Number | 782856-02 |
| Category | PXI Source Measure Units |
| Model | PXIe-4139 |
| Description | NI PXIe-4139 System SMU |
| Terminals | Guard and Sense terminals on the output connector |
| Guard Terminals Use | Implement guarding strategies in cabling and test fixtures |
| Sense Terminals Use | Compensate for voltage drops in cables and switches when remote sense is enabled |
| Timing and Triggering | Exact control of sourcing and measuring operations, synchronization with other devices |
| Sequence Engine | Enables precise control over sourcing and measurement functionality for fast, deterministic timing |
| Sequencing Method | Output values can be applied in sequence or triggered to change at an exact time |
Question 1: What is the PXIe-4139 used for?
Answer 1: It’s a PXI Source Measure Unit with advanced features.
Question 2: What are Guard and Sense terminals on PXIe-4139 for?
Answer 2: Reducing noise & ensuring accurate voltage application.
Question 3: Does PXIe-4139 have timing and triggering capabilities?
Answer 3: Yes, for precise control of sourcing and measuring.
Question 4: What does the Sequence Engine in PXIe-4139 do?
Answer 4: Controls sourcing/measurement for deterministic timing.
Question 5: Can PXIe-4139 apply output values in sequence?
Answer 5: Yes, facilitating complex tests and precise control.


