Description
The NI USB-5681 is a power meter designed for precision measurements across a wide range of frequencies, from 10 MHz to 18 GHz. This device, identified by its part number 781214-01, falls under the category of a Power Sensor and is specifically designed to cater to the demands of modern RF and microwave power measurements.
One of the standout features of the USB-5681 is its ability to accurately measure input signal strengths ranging from -40 dBm to +20 dBm. It offers two sub-ranges for measurement, which include +20 dBm to -7 dBm and -7 dBm to -40 dBm, ensuring precise readings across its entire operational spectrum. Furthermore, its 50 kHz bandwidth support makes it versatile for a wide array of signal types.
The NI USB-5681 boasts an impressive measurement speed of 100 samples per second (S/s), enabling users to perform quick and efficient power measurements. Additionally, it maintains an uncertainty in linearity of less than 3%, highlighting its accuracy and reliability for critical applications.
Adhering to rigorous safety standards, the USB-5681 complies with IEC 61010-1, EN 61010-1, UL 61010-1, and CSA C22.2 No. 61010-1, ensuring it meets global safety requirements for test equipment. Its power requirement is modest, needing only 5 VDC, 450 mA, sourced directly from the host USB, which simplifies its integration into various setups without the need for external power supplies.
Protection features of the USB-5681 include a maximum voltage tolerance of ±20 VDC at the RF port and the ability to handle absolute power levels up to +30 dBm. These features ensure the longevity and durability of the power meter, protecting it against potential damage from overvoltage or excessive power conditions.
In conclusion, the NI USB-5681, 18 GHz Power Meter, is a highly capable and versatile instrument designed
| Specification | Detail |
|---|---|
| Part Number | 781214-01 |
| Category | Power Sensor |
| Model | USB-5681 |
| Description | NI USB-5681, 18 GHz Power Meter |
| Frequency Range | 10 MHz to 18 GHz |
| Input Signal Strength | -40 dBm to +20 dBm |
| Sub-ranges for Measurement | +20 dBm to -7 dBm, -7 dBm to -40 dBm |
| Bandwidth Support | 50 kHz |
| Measurement Speed | 100 S/s |
| Uncertainty in Linearity | Less than 3% |
| Safety Standards | IEC 61010-1, EN 61010-1, UL 61010-1, CSA C22.2 No. 61010-1 |
| Power Requirement | 5 VDC, 450 mA (from host USB) |
| Protection | Maximum voltage ±20 VDC at RF port, Absolute power +30 dBm |
Question 1: What is the frequency range of the NI USB-5681?
Answer 1: 10 MHz to 18 GHz
Question 2: What is the measurement speed of the USB-5681?
Answer 2: 100 S/s
Question 3: What is the input signal strength range of the USB-5681?
Answer 3: -40 dBm to +20 dBm
Question 4: What safety standards does the USB-5681 comply with?
Answer 4: IEC 61010-1, EN 61010-1, UL 61010-1, CSA C22.2 No. 61010-1
Question 5: What is the power requirement of the USB-5681?
Answer 5: 5 VDC, 450 mA
