LadyBug’s LB5940L true RMS power sensor is a high ac- curacy sensor that performs a wide range of power
measurements. The multi-path sensor uses diodes operating in their
square-law region to make measurements similar to thermal sensors, yet much faster and
with greater dynamic range.
Covering frequencies from 9 kHz to 40 GHz, the LB5940L
was designed with instrument calibration and electromagnetic compatibility testing in mind. Many devices produce
high-power levels when range switching during calibration.
The LB5940L sensor’s damage level of 27 dBm continuous
power and greater than 1 W for pulsed signals affords a measure of safety in these circumstances. LadyBug’s patented
zero and thermal technology eliminate drift associated with
high sensitivity measurements. The sensor remains stable
over its entire operating temperature range of 0°C to + 55°C.
The LB5940L includes triggering features that allow users to make advanced triggering measurements. Positive
and negative trigger delay, trigger hold off, internal level
controlled trigger and external TTL triggering are included
features. Trigger count enables multiple measurements to
be returned with each measurement. In its faster mode,
gated measurements allow detailed signal analysis, and
gated data can be averaged or the entire trace returned.
The LB5940L uses an advanced, composite USB
interface, enumerating as both a USB human interface device (HID) and USB test and measurement
class (USBTMC) device. This advanced feature allows great flexibility for programmatic users. Test system designers that have VISA IO libraries can use the
USBTMC interface, and systems written in other environments can use the USB HID interface. This allows access
on nearly any PC. The sensor is delivered with a full complement of software, including an easy-to-use application that supports multiple sensors and an interactive IO
program to aid system developers. In addition to these
tools, LadyBug provides support code to help developers get started quickly.
The LB5940L is a feature-rich sensor at an attractive
price, providing customers with excellent value.
Santa Rosa, Calif.