Extreme Weather Conditions
I thrive in harsh weather conditions, especially extreme cold. One year at the end of June, I did some work in Houston. It was 38 C (~100 F) and felt like 100 %RH outside but in the confined environment where I was working it was about 49 C (~120 F)…
Amplified Sensors
To help satisfy the needs of some of our customers, we offer an amplified version of our pyranometer and quantum sensors. This allows for easy integration into existing systems that are not designed for millivolt signals. There are two options: 2.5V…
Field of View
Due to recent product development, Apogee now offers three different options in choosing a Field-of-View (FOV ) for the SI-100 series infrared radiometers (IRRs). FOV is reported as the half-angle of the apex of the cone formed by the target (cone ba…
Daily Light Integral: Measuring Light for Plants
This graph illustrates the year-round variability of global horizontal irradiance at Apogee Instruments in Logan, Utah.
As the winter solstice fast approaches, so do the shortened days and lengthy nights. In fact, I've already begun to not…
Specifications
Several years ago when our specification sheets did not include the same information they do now, a customer looked at a close-up photo of our pyranometer (with a diameter of 23.50 mm) and concluded that the sensor was the size of a dinner plate! Ini…