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... May 20: YES Awarded Navy Deployable Micro Weather Sensor Contract

... May 12 YES Awarded USAF Phase II for Space Weather Imager Contract

Advanced research programs at YES continue to produce high-quality automated instrumentation to monitor environmental and industrial parameters. YES uses innovative approaches and the latest technology to create reference-grade instruments for field and laboratory use. Our latest advances are described below. Contact YES Technical Sales for more information on pricing and delivery times.

May 2005: Navy Deployable Micro Weather Station R&D

YES has received a Phase II SBIR R&D contract from Navy Space and Naval Warfare Systems command to develop and advanced Deployable Micro Weather Sensor (DuWS). This low cost technology will assist forward area deployments and special operations forces by making quick on the spot measurements of the environment, including the winds above the treetops without the need to erect a meteorological wind tower. Ultimately, a version of the DuWS package will be air-deployable and use satellite communications to gather weather data inside hostile territory without endangering lives. 


April 2005: Valparaiso University takes delivery of ARL-9000 and TSI-880 Systems

YES has installed a Model ARL-9000 and TSI-880 at Valparaiso University in Indiana. The school has recently built a brand new weather center for its Geography and Meteorological Departments that rivals most educational and even research institutions in the world today. In combination with its Communications Department, Valpo now offers its students a powerful degree combination. Next year, Eventually, a Doppler Weather Radar will compliment the cloud and upper air measurements that the YES Model TSI-880 and ARL-9000 provide to the students and faculty.

April 2005: USAF Space Weather Imager R&D

The Air Force Research Laboratory has awarded YES with a Phase II SBIR R&D Contract to develop an advanced low light night sky imager (SWXI) for characterizing space weather events. Space weather geomagnetic storm activity can interfere with and reduce the accuracy of GPS signals, which are used to guide both troops and ordinance. During conflict, commanders need to know and understand the impact of these storms on their worldwide communications, command and control equipment. System software will ultimately have the capability to ingest data from multiple SWXI cameras to establish both height and trajectory information, and will help to ground truth the upcoming Air Force CNOFs satellite mission. The hardware will resembled the TSI-880 but extend it to all weather, night operation. 

October 2004: New Model DPH-2012 Fuel Cell Hygrometer Makes Humidity Measurements in Real Time 

An industry first, YES has begun shipping its high temperature fuel cell dew point hygrometer, the Model DPH-2012. It is the first commercial system capable of making real time high temperature dew point measurements within hydrogen fuel cells at or near steam point. YES engineers initially developed the digital instrument for a large plastics firm but then adapted it for a major US automotive manufacturer conducting fuel cell research. The high temperature humidity sensor will provide researchers working on fuel cells with an important analytical tool for diagnosing fuel cell performance.

June 2004: DOE awards YES and Umass Micro Power Plant R&D Grant

The US Department of Energy awarded YES and the University of Massachusetts at Amherst Engineering department a Phase I SBIR grant to develop a power scavenging technology to power future wireless sensor technologies. Working together, the two teams will prototype and ultimately design a modular product that can address a wide number of applications. GE, Honeywell and Eaton are also involved with the program as industrial partners.

July 2004: TMS-7200 Weather Web deployed for Democratic National Convention in Boston

In the summer of 2004 YES was contracted to deploy its first metropolitan area Weather Web in and around the city of Boston to make real time wind measurements for the Democratic National Conventions. A fleet of strategically located wireless sensors feed continuous information to a Transport and Dispersion (T&D) plume dispersion model that can be used by first responders in the event of an emergency. This is the first system of its kind, and is a commercialization of technology funded initially by the US Army and Navy SBIR programs.

November 2003: TPS-3100 Hotplate Precipitation Sensors Introduced

YES has begun accepting orders for its Model TPS-3100 Total Precipitation Sensor while verification testing in NCAR wind tunnels continues in parallel.  Browse the Hotplate News Announcement or the Data Sheet

June 2003: Yesdas Manager and YESDAQ Upgrades Released

Enhancements to both products include support for Windows XP as well as advanced Langley processing.  Contact YES sales or your local sales representative for pricing.

January 2003: Low-cost Thermo-hygrometer

Continuing with our reputation for high precision met instruments, the Model PTU-2000 thermo-hygrometer provides an economical alternative to chilled mirror hygrometer technology. The sensor features a digital serial output with aspiration with a double-shielded thermometer and polymer capacitance hygrometer sensor, and an optional solid state pressure sensor.

October 2000: YESDAQ, Version 1.4 Released

The latest release of YESDAQ, an database for managing data collected from YES instruments and other meteorological instruments, is available. Version 1.4 includes a World View feature, which lets you click on a site location (indicated by a plus sign on the world map) and quickly display the data from that site. A Current Day field lets you view today’s data without filling in specific date information. This release also supports Vaisala ceilometers, enabling you to import and display ceilometer data. 

June 2000: Rotating Shadowband Spectroradiometer

The visible/NIR RSS and ultraviolet UVRSS are fully automatic spectroradiometers for field measurement of direct, diffuse and total global atmospheric spectral irradiance. The innovative optical design principle employs prisms along with ultra reliable state-of-the-art solid state charge-coupled device (CCD) technology to produce a highly stable instrument with almost no moving parts. Until now, most spectroradiometers have used diffraction, via ruled optical gratings to select wavelengths. The gratings are moved using complex mechanical motor drives, which take several minutes to complete a scan, during which time the sky conditions may change dramatically. Both the RSS and UVRSS use refraction, via a locked down prism that images the spectrum onto a solid-state linear detector array. In both versions, the detector is an advanced cooled CCD detector similar to one used in the Hubble telescope. The UVRSS has a third optical stage that permits operation in the UV-B down to about 295 nm. Compared with other monochromator-based spectroradiometers that suffer from stray light rejection in the far UV-B, the UVRSS represents a major advancement in the state-of-the-art in UV-B radiometry, in terms of long term radiometric stability and wavelength accuracy. In addition, the RSS and UVRSS employ a rotating shadowband that allows simultaneous direct-normal, diffuse, and total measurements over the entire spectral range.

May 2000: YESDAQ 1.0 Software Available

YESDAQ Software acts as a central data repository and data collection engine. Built upon open source mySQL database technology, YESDAQ collects data from MFR, TSI and RSS systems and permits reprocessing of cloud image data collected by the TSI. YESDAQ also supports ODBC/JDBC connectivity to allow users to perform calculations in their favorite MS-Windows/third-party application.

April 2000: YES Delivers TSI-880 to Major US Government Agencies

The new Model TSI-880 Automated Total Sky Imager represents the next generation in automated environmental imaging and observation systems. It features a high availability image processing system that can interface with existing weather observation systems such as ASOS. It also provides present weather monitoring and animations to users with web browsers via the Internet. Processing is done on board the TSI-880 so Internet users can browse both raw and processed data with no host software required on their local PC.

YES recently delivered TSI-880 systems to three different major US federal government customers: 

  • US Navy (SPAWAR)
  • Federal Aviation Administration 
  • US Department of Energy (Atmospheric Radiation Measurement Program)

The DOE's TSI-880 system was installed at the Southern Great Plains site run by the Atmospheric Radiation Measurement program. The TSI-880, along with the YES' new infrared instruments, the TIR-570 and TSI-880, took part in the spring 2000 Cloud Intensive Observation Period. The Navy and FAA are each evaluating the TSI-880's unique capabilities within their operational ASOS networks. The TSI was the commercial result of a USDA-sponsored SBIR Phase II R&D program.

March 2000: New Infrared Radiometers

The new Models TIR-550 and TIR-570 extend the YES radiometry line into the infrared with two performance points. Traditionally, pyrgeometer instruments have been used to measure long wave (thermal infrared from 3-50 microns) broadband radiation via a thermopile covered by a visible/NIR optical filter. A major problem with thermopile-based instruments is their unit-to-unit variation even after fresh calibrations. 

In the Total Infrared Radiometer Model TIR-550 (a direct result of a NSF-funded SBIR phase II R&D program), YES has incorporated a unique compensation measurement system in addition to improved optical coatings to improve the unit-to-unit calibration agreement between instruments. It represents a new standard in low cost broadband IR field radiometry and comes standard with aspiration.

The more sophisticated Model TIR-570 features a highly sensitive, ultra wide spectral response chopped pyroelectric detector. It contains an integral self-calibration blackbody reference as well as a shadowband to help keep the intense direct normal visible solar radiation form self-heating the instrument. It is the first instrument ever to provide measurement accuracy of 1%, surpassing all other field radiometers in the infrared range. In addition to global warming research, the TIR-570 has applications in providing ground truth data to support satellite calibrations. It is the result of a past DOE phase II SBIR R&D program.

Together, these instruments extend our MFR family of visible/NIR instruments into the thermal infrared portion of the spectrum giving you one, unified supplier from the UV-B through the long wave thermal infrared.

February 2000: YES Expands its Humidity Line

The new MET-2010 Meteorological Thermohygrometer represents the state-of-the-art in the outdoor measurement of ambient air temperature and dew point humidity via chilled mirror technology.  It has a conservatively rated temperature accuracy of ±0.02°C over a ±50°C range. Like the TSI family, the microprocessor-based MET-2010 is the result of an intensive multi-year R&D effort, originally funded by a USDA Phase II SBIR program.

January 2000: YESDAS Manager Software Released

Extending its MFR-7, UVMFR-7 and YESDAS-2 data acquisition product lines, YESDAS Manager V 2.0 software now supports these radiometers under Windows 9x/NT. Capable of supporting both individual systems and entire networks, it features:

  • A polling engine for automated data collection
  • A calibration editor that enables users to edit and create programs to produce data in a desired format
  • A web server user interface for publishing collected data to other users via the Internet

October 1998: TSP-700/A Aircraft Pyranometer

The TSP-700/A is the first total solar pyranometer specifically designed for aircraft applications. It uses the advanced measurement technology of the TSP-700 in a housing designed for flight use. No ventilation or heating is required since the instrument is cooled by normal airflow. Currently, the TSP-700/A instrument is being flown by the Royal Meteorological Service in Great Britain.

October 1997: Precision Virtual Hygrometer PVH-2020

The PVH-2020 expands the YES instrument line into humidity measurement. The founders of YES have extensive experience in the field of hygrometry, dating back 40 years to when YES founder David J. Beaubien and YES scientist Arthur Bisberg designed and built the first dew point hygrometers at the former Cambridge Systems, Inc. (later acquired by EG&G and now EdgeTech). Today, YES engineers have applied new optical and microprocessor technologies to the basic chilled-mirror technique for water vapor measurement used in older humidity instruments to develop the next generation of dew point hygrometers.

May 1996: Dual Head MFR (DMFR-7)

We have adapted our DMFR-7 instrument to incorporate a second, downward looking radiometer head to provide simultaneous measurement of both upwelling (radiation from the ground) as well as downwelling (radiation from the sky) direct, diffuse and global spectral irradiance. The DMFR-7 permits automated measurements of albedo. Dr. Kathy Moore of ASRC is using the DFR-7 at Harvard Forest near YES to study the effect of climate change on the forest.


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This page was last updated on Monday, September 11, 2006 .