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Our data-acquisition systems are built to be as unique as the dams they monitor. They measure water pressure, flow and turbidity, soil movement, tilt, displacement, strain, load, vibration, overburden, generated power, machine status, and many other parameters. With a full range of network capabilities, real-time user interfaces, alarm capabilities, and compatibility with other systems, we put the controls in your hands. We can help you design and implement a customized system. Our systems are rugged and low-power, adaptable to the harshest, most remote environments.

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To see how our systems meet your application needs, review our case studies »


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More Details about Our Dam Monitoring—Structural Systems

Geotechnical Data Acquisition

The versatility of our systems allows them to be customized for each application. We offer a range of dataloggers, from the most basic system with just a few channels to expandable systems that measure hundreds of channels. Scan rates can be programmed from once every few hours to 100,000 times per second, depending on the datalogger model. Measurement types, processing algorithms, and recording intervals are also programmable.

Our systems have powerful onboard instruction sets: simply choose sensor type, scan rate, and measurement channel. On-board mathematical and statistical processing allows data reduction in the field and allows measurements to be viewed in the desired units, whether that be microstrain, centimeters per second, revolutions per minute, meters, Amperes, or inches.

Our system's versatility extends to control as well—our systems can monitor and control external devices based on time or measured conditions, allowing savings in time and equipment, and possibly preventing, or warning of, dangerous conditions. They are rugged enough to be in use in geotechnical studies and mines world wide.

Our systems can stand alone. Once programmed and powered, no human or computer interaction is required, although data are typically downloaded to a PC for further analysis. A telecommunications or hardwire link allows data to be monitored and graphed in your office rather than in the field. Data from a number of stations and from a number of applications can be monitored from a single laptop or desktop computer.

The low power drain typically allows our data acquisition systems to be powered by solar panels and batteries. If 110/220-Vac power, vehicle power, or external 12-Vdc batteries are available, you can use those as well. Nonvolatile data storage and battery-backed clock ensure data capture and integrity.

Sensors used for Geotechnical Measurements

The versatility of our systems begins with sensor compatibility—they can measure virtually every commercially available sensor—allowing them to be used in a variety of ways for a variety of measurements. For example, a CR1000 can be used in slope stability, water quality, or equipment performance applications. Typical sensors that can be used include:

  • Carlson strain meters
  • Geokon vibrating-wire strain gauges
  • Slope Indicator vibrating-strip sensors
  • Foil strain gauges (in quarter-, half-,or full-bridge strain configurations)
  • Inclinometers
  • Crack and joint sensors
  • Tilt sensors
  • Piezoresistive accelerometers
  • Piezoelectric accelerometers
  • Capacitive accelerometers
  • Borehole accelerometers
  • Servo-force balance accelerometers

Because our dataloggers have many channel types and programmable inputs, all of these sensor types can be measured by one datalogger. Channel types include analog (single-ended and differential), pulse counters, switched excitation, continuous analog output, digital I/O, and anti-aliasing filter. Using switched or continuous excitation channels, our dataloggers provide excitation for ratiometric bridge measurements.

Communications

The availability of multiple communications options for retrieving, storing, and displaying data also allows systems to be customized to meet exact needs. Onsite communication options include direct connection to a PC or laptop, PC cards, storage modules, and datalogger keyboard/display. Telecommunication options include short-haul, telephone (including voice-synthesized and cellular), radio frequency, multidrop, and satellite.

Case Studies

Puerto Rico: Dam Monitoring
Canary Systems, Inc., was asked by the instrumentation contractor for the new Portugués Dam in......read more
New Zealand: Lahar Observations
All of our years of effort have paid off. Wehave collected a world-class data set......read more
Kentucky: Wolf Creek Dam Repair
The Wolf Creek Dam near Jamestown, Kentucky, was constructed partially as a regular concrete hydroelectric......read more
Idaho: Slope Stability Monitoring
The Problem Our customer required a data acquisition and control system to monitor a slowly moving......read more
Castillo de San Marcos: Crack Monitoring
The Castillo de San Marcos National Monument, St. Augustine, Florida, is a 17th Century historic,......read more

Documents

Frequently Asked Questions

Number of FAQs related to Dam Monitoring—Structural: 1

  1. Most Campbell Scientific systems are built from individual components. This provides maximum flexibility for our customers, but it does not lend itself to pricing a "typical" system. Contact Campbell Scientific for assistance in pricing a system to meet the unique needs of the application.

Integrators and Consultants

The following is a list of companies that have developed expertise in our products and provide consulting, installation, and other services for dam monitoring—structural applications.

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