UFI BioLogs™
A choice of three flexible platforms offers ambulatory recording to fit your research budget
These 3991/3 ThA BioLogs™ record two channels of internal temperature data and one channel of ambient temperature. Paul Ponganis, M.D., Ph.D. (Scripps Institute of Oceanography, University of California at San Diego) used these BioLogs to study body temperatures in diving Emperor Penguins in Antarctica. Dr. Ponganis has been using a variety of our BioLogs for over a decade now. Typical output is shown below.
Numerous other researchers have been satisfied users of UFI BioLogs; John W. Denver, Ph.D., Research Assistant Professor at the Brain-Body Center, Dept. of Psychiatry, University of Illinois at Chicago has been kind enough to offer a testimonial.
An introduction to UFI BioLogs
The BioLog is a rugged, yet flexible, ambulatory physiological data recorder that supports a broad line of signal conditioners. Three easily customized platforms -- the 3991, 3992 and 3993 -- are available to fit many physiological research recording needs.
In addition to the models featured on this page, UFI also makes a line of BioLogs, the 3991-SCL series, that are specially designed for menopausal hot flash monitoring research. Still another new line of BioLogs, the UUB series developed since 2008, has proved very popular with resarchers who require very small. low-power physiological data loggers, especially for underwater and avian use.
Conditioned data are sampled at the desired resolution (8, 12, or 16 bits) under microprocessor control. Recorded data are compactly stored in internal memory (3991) or on a removable SD memory card (3992 and 3993). In either case, when recording is complete, a BioLog Interface Box connects the BioLog to a USB port on the user's PC for data download.
UFI Downloading and Plotting Software (DPS) running on the host PC supervises data download a hard disk file. From there it can be viewed, printed, moved to the clipboard, or converted into ASCII data files for further analysis with Excel and many other data analysis packages.
Features common to all BioLogs
- A wide range of signal conditioners is available
- Available sensor inputs include ECG/HR/IBI, EOG, EMG, EGG, EEG, respiration, PPG/PTT, pressure, temperature and more
- UFI proprietary front-ends (input sensors) include Skin Conductance Level (SCL) and Impedance Respiration
- Each input signal conditioner is designed to your specifications of gain, frequency response, sample rate, etc.
- Fetrodes™ can be used on all bioelectric channels to reduce input noise at the source
- Rugged keyed and locking input connectors are standard
- Battery operation (usually standard 9V) gives inherent subject isolation
- SD cards give flexible amounts of data storage
- Data are downloaded to your Windows™ PC through UFI interface boxes, including the Model 3991BIB
Model 3991 platform
- One, two, or three input channels
- Sample resolution: 8 or 12 bits
- Recording capacity (typical): 32 MBytes built-in memory
- Plastic case size (typical): 1.3" x 2.75" x 4.95" (33mm x 70mm x 126mm)
- Weight (typical): 8 ounces (225g)
- Two event-mark / control buttons
- Built-in real time clock display
- Set up for recording in the field
- Price list
- 3991 hot flash monitors are described here
Model 3992 platform
- One to 6 channels of input signal conditioning
- Sample resolution: 8 or 12 bits
- Data are stored on removable SD card
- Rugged plastic case: 1.5" x 5" x 7" (38mm x 127mm x 178mm)
- Weight (typical): 20 ounces (570g)
- Twelve-button keypad with tactile and visual feedback
- Built-in waveform display uses graphics LCD
- Interlocking power switch prevents SD card removal or insertion while power is applied
- See our price list
Model 3993 platform
- One to 14 channels of input signal conditioning
- Sample resolution: 8, 12, or 16 bits
- Data are stored on removable SD card
- Rugged, powder-coated aluminum case: 2.75" x 6" x 8" (70mm x 152mm x 203mm)
- Weight (typical): 50 ounces (1420g)
- Twelve-button keypad with tactile and visual feedback
- Built-in waveform display uses graphics LCD (not shown)
- Uses one or two batteries, with automatic level sensing and switching
- See our price list
BioLog Downloading and Plotting (DPS) Software
UFI Downloading and Plotting Software (DPS) running on the host PC supervises data download a hard disk file. From there it can be viewed, printed, moved to the clipboard, or converted into ASCII data files for further analysis with Excel and many other data analysis packages.
DPS functions
- Supervises data downloading from BioLog to PC
- Allows easy display and review of downloaded data
- Permits printing of displayed data or transfer to clipboard
- Converts data to channel-specific ASCII data files for further analysis in user's choice of software
- DPS data file post processing and scanning options available
- Price is per site and includes software and interface box
- Each DPS is custom programmed for your BioLog
Model 3991BIB Interface Box
The Interface Box mediates between the PC running the DPS software and the BioLog. The box connects the BioLog to the host PC through one of the PC's USB ports with a standard USB cable. The Interface Box connects to the BioLog through the "Link" Cable.
Interface Box functions and features
- transfers instructions from DPS software during BioLog initialization
- permits data collected with BioLog to be downloaded with the DPS software
- checks whether the BioLog is properly functioning "on its own" before deployment on the test subject
- minimizes current drawn from onboard BioLog battery while BioLog is connected to PC
- front-panel Function Switch controls power to the Interface Box itself as well as power to the BioLog during the deployment process
- Function Switch also controls USB connection between the BioLog and the host PC
- Some BioLog models, as pictured above, are supplied with a Function Switch "Test" position and LED that permit BioLog recording to be verified after recording has started
- front-panel LCD shows the voltage from the Interface Box to the BioLog. (If the Function Switch has a "Test" position, LCD can also display the onboard BioLog battery voltage.)
- power for the Interface Box is supplied by wall-mount transformer that plugs into AC mains outlet. (As as option, Interface Box may be ordered with a 9V battery power supply.)
- rugged ABS plastic case is 7" x 5" x 2.5" (178mm x 127mm x 64mm)