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 Geotechnical Monitoring Services
         
  Tiltmeters      
 

The Tiltmeter in it's present form is a development of the cold war. Based on a design dating back to the 1950's, the Tiltmeter is little more than a very precise bubble level. Utilizing the Earth's gravity as a reference point, the Tiltmeter senses any offset from the local plumb-bob vector.

The high resolution of the Tiltmeter allows MicroRadian Engineering to sense small changes associated with landslides, creep and other mass wasting events. The sensitivity is high enough that motion that cannot be sensed by the classic "Groove Tube" in months, is clearly visable to the Tiltmeter in weeks.

The high sensitivity of the Tiltmeter has proven itself in many applications. The Tiltmeter sensor is a key element to the Landslide Monitoring/Alarm system offered by MicroRadian Engineering since 1979.

System configuration include platform sensors, uni-bar, surface mount and borehole housings

 
         
  Accelerometers      
 

Accelerometers are excellent tools for evaluating short term shock to a building or other engineered object. Analysis of the recorded data will show the amount of shock from traffic noise, construction motion or earthquake loads.

Recent developments in Micro Machining has resulted in very low cost precision accelerometers that are capable of sensing gravity referenced tilt. While significant filtering and signal conditioning is required, the MEMs accelerometer is rapidly creating a place in the science of stability monitoring.

MicroRadian Engineering disposible tilt sensors are based on the solid state accelerometer technology. The low cost sensor is mass produced then fine calibrated in software to be high precision sensors.

The wide dynamic range of the accelerometer and high frequency response makes for an ideal sensor when low cost and short term stability is a factor

The installation of Acclerometers on potentially active landslides or unstable structures provide rapid installation and immediate data collection.

 
       
  Manometers      
 

The Manometer is a precise system for meauring relative change in the floor or other surface over time. Standards for Construction are compared against the current level at the time of recording and used as a starting point presuming change over time since construction. Successive monitoring may indicate change occuring over time.

Automated Manometer monitoring systems provide long baseline tilt information.

Multipoint manometer surveys of floor levels easily provide high resolution contour maps for analysis of existing conditions including ponding, expansive soil effects and building defects.

 
         
         
         
         
         
02-08-12
 
Projects:MJ Selby, Soil Creep,La Conchita Landslide, City of Laguna Nigel, City of Orange, City of Fullerton, City of Anaheim, City of Ventura, Ventura County, City of San Juan Capistrano, City of San Clemente, City of Laguna Beach, City of Walnut, City of Mission Viejo, Panama Canal, Gold Hill, New Zealand, Mount Saint Helens Volcano, Cascade Locs, San Francisco Earthquake, City of Oakland, City of Hayword, City of Yorba Linda, City of Corona, City of Tustin, City of Santa Ana, California, Washington, Oregon, Hawaii, Landslide Videos, Dr. Chris Buckley, George Bach, Rex Torrez, Soil, Geologic Problems, Foundation Cracking, Erosion Control, Slab Cracks, Geotechnical
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