Campbell Scientific, Inc.
Campbell Scientific manufactures dataloggers, data acquisition systems, and measurement and control products used worldwide in research and industry.
- 435.227.9000
- 435.227.9001
- info@campbellsci.com
- 815 W 1800 N
Logan, UT 84321-1784
United States of America
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Evaporation Gauges
Evaporation gauges determine the evaporation rate by measuring the changing water level in an evaporation pan. The gauges consist of a float, pulley, and counterweight attached to a potentiometer mounted through a gear assembly in weatherproof housing. The evaporation gauges produce a resistance output that dataloggers can measure.
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Snow Water Equivalent and Snow Depth Sensors
Campbell Scientific offers two types of sensors for snowpack applications: snow water equivalent (SWE) sensors and snow depth sensors. SWE sensors measure the amount of water contained within a snowpack. Snow depth sensors measure the depth of the snowpack.
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Satellite Communications
Satellite telemetry offers a communication alternative for remote locations where phone lines or radio frequency systems are an impractical choice. Using satellite telemetry, communication is achieved by interfacing a data logger to a satellite transmitter, which in turn transmits the data from the field site to a receiving station.
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Water Level, Stage, and Flow Sensors
Campbell Scientific offers a variety of sensors to measure water level, stage, and flow: pressure transducers, shaft encoders, radar ranging sensors, sonic ranging sensors, and bubblers. Users often select their sensors based on the site location, required accuracy level, and ease of installation.
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Precipitation Sensors
Campbell Scientific offers several types of sensors to measure precipitation: tipping bucket rain gages, siphoning tipping bucket rain gages, heated rain gages, and snowfall adapters. Users often select their precipitation sensors based on the type of precipitation to be measured (rain or snow), as well as the needed orifice diameter, measurement range, and accuracy level.
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Water Conductivity Sensors
Water conductivity sensors are used in water-quality applications to measure how well a solution conducts an electrical current. This type of measurement assesses the concentration of ions in the solution. The more ions that are in the solution, the higher the conductivity.
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Soil Water Potential Sensors
Campbell Scientific offers soil water potential sensors that measure soil water potential via two methods: heat dissipation or electrical resistance. The sensors determine the energy status of the water in the soil, which describes the force that holds the water in the soil.
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Sensors
Campbell Scientific sensors measure a broad array of parameters for environmental, water resource, research, and industrial applications. The sensors output electrical signals, which are transmitted to data loggers. In addition to our extensive line of sensors, almost any commercially available sensor can be measured by our data acquisition systems.
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Dataloggers
CR300-Series
CR300 dataloggers are small, low-cost, high-value dataloggers with many of the features of other Campbell Scientific dataloggers. In addition, the CR300 dataloggers offer faster communications, low power requirements, built-in USB, and excellent analog input accuracy and resolution.
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Leaf Wetness Sensors
Campbell Scientific offers two types of leaf wetness sensors to measure the wetness of leaves: surface contact and electrical resistance. Surface contact sensors measure the electrical resistance of a water film on their surface. Electrical resistance sensors imitate the characteristics of leaves and measure the dielectric constant of their upper surfaces.
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Barometric Pressure Sensors
Barometric pressure sensors measure fluctuations in the pressure exerted by the atmosphere. The sensors require protection from condensing humidity, precipitation, and water ingress. They are typically housed with the datalogger inside an environmental enclosure. If the enclosure is airtight, the sensor's pressure port must be vented to the atmosphere.
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Expansion Peripherals
Expansion peripherals are used with data loggers to achieve many purposes, including the following: add additional channels, extend data communications networks, perform media conversions, read vibrating wire sensors, and build distributed measurement networks.
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Wind Speed and Wind Direction Sensors
Wind vanes measure wind direction and are often used with anemometers, which measure wind speed. Campbell Scientific offers a variety of anemometer designs: cup, propeller, ultrasonic, sonic, and lidar. Most of our wind sensors are modified slightly from the manufacturers’ stock items so that they may be used with our dataloggers in research, air quality, and general purpose meteorological applications.
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Field Displays
Field display devices allow users to view and collect data, as well as download programs, at the field site.
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Data Loggers
Data loggers are an essential component in data acquisition systems. They can scan a wide variety of measurement sensors, perform any programmed calculations, convert the data to other units of measurement, and store the data in memory. Data loggers can also transmit the data for analysis, sharing, and reporting, as well as control external devices.
