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Inclinometers

Tilt Beam Sensor

  Quickly setting up the dip of drilling rig Available in 30 mm or 36 mm diameter The Tilt beam sensor consists of an high performance MEMS capacitive tilt sensor attached to a rigid metal beam. The beam, which is typically one , two or more meters long, is mounted on anchor bolts that are set into the structure. Movement of the structure changes the tilt of the beam and the output of the sensor. Displacements are calculated by subtracting the initial tilt reading from the current tilt reading and multiplying by the gauge length of the sensor (the distance between anchors). When sensors are linked end to end, displacement values can be accumulated from anchor to anchor to provide a profile of differential movements or settlements. Advantages High Resolution: The TBS sensor can detect a change in tilt as small as 0.001 degree, equivalent to a movement of 0.017 mm per meter of beam. Reliable Measurements: Since the TBS sensor has a defined gauge length, changes in tilt can be converted simply and accurately to millimeters of movement, regardless of the rigidity of the structure. Linked end to end, beam sensors can provide absolute displacement and settlement profiles. Convenient to Install: A low profile design makes the TBS sensor practical to install in tunnels and other locations where clearance is important. The length of the beam can be modified to fit the structure, and special mounting brackets provide easy installation on curved or distorted surfaces. Simple and Robust: The MEMS sensor has no moving parts, and its insulated packaging provides thermal symmetry, shielding it from the effects of temperature gradients and radiated heat. Remote Readout: In real time applications, TBS are connected to a data acquisition system that continuously monitors movements and triggers alarms when threatening movements are detected. In less critical applications, beam sensors can be read manually at a remote terminal box with a hand held readout. Cost Effective: The TBS provides reliable, high-resolution measurements, is simple to install, and is easily connected to a data acquisition system. It represents an efficient and economical alternative to precision leveling surveys and settlement profiling systems. Click the link below to download the brochure, for more information about this product contact us. Download VMIC Catalog (English)

Portable Tilt Meter

Easy to Install Easy to Use Rugged, Reliable, and Accurate  The portable tiltmeter uses a force-balanced servo-accelerometer to measure inclination. The accelerometer is housed in a rugged frame with machined surfaces that facilitate accurate positioning on the tilt plate. The bottom surface is used with horizontally-mounted tilt plates and the side surfaces are used with vertically-mounted tilt plates The portable tiltmeter is used to monitor changes in the inclination of a structure. Tiltmeter data can provide an accurate history of movement of a structure and early warning of potential structural damage. readout unit can be away from sensor up to 20 meter.To obtain tilt readings, the operator connects the tiltmeter to the readout unit, positions the tiltmeter on the tilt plate, and save data in internal memory. The operator then rotates the tiltmeter 180 degrees and obtains a second reading. Later, the two readings are averaged to cancel sensor offset. Changes in tilt are found by comparing the current reading to the initial reading. Readings in two orthogonal directions can be obtained rotating the instrument of 90° only on the horizontal surface. Typical applications include: Monitoring rotation caused by mining, tunneling, soil compaction, or excavation. Monitoring rotation of concrete dams and retaining walls. . Features Easy to Install Easy to Use Rugged, Reliable, and Accurate Uniaxial or biaxial sensors available Horizontal or vertical applications Readout units and portable sensors are lightweight Data logger compatible High accuracy and repeatability Benefits Increase Productivity Quick Delivery High Accuracy High Reliability Economical Applications: Monitor tilt of retaining and building walls. Tilt of concrete dams Landslide monitoring Ground subsidence Building safety along adjacent excavations Applications where the failure mode is expected to have a rotational component Differential compression in earth dams and embankments Observation of benches and berms in open pit mines Bridge piers     Click the link below to download the brochure, for more information about this product contact us. Download VMIC Catalog (English) General Specification Sensor Type High Precision MEMS Alignment Horizontal ,  Vertical Axis Uniaxial & Biaxial Range ±10°,±15°,±30° (±90° on Request) Sensor Specification Sensor sensitivity 0.0013° (4.68 arc-sec) (24 bit ADC) Sensor total accuracy ± 0.013 %/ °C Repeatability 0.002° (0.03 mm/m) Sensor temperature dependency ± 0.005 %/ °C Temperature storage range -30 °C  to  +110 °C operating range -25°C to +80°C Sensor  Digital Temperature sensor range -25°C to +80°C accuracy ±1 °C Power Battery Rechargeable Li-ion 4400mAh Continuous Operating Up to 20 Hour Housing Protection IP65 Dimension 100*80*70 mm ( L,W,H) Material Stainless Steel or Aluminum

Quickly setting up the dip of drilling rig Available in 30 mm or 36 mm diameter The Digital Horizontal MEMS Inclinometer System measures settlement or heave under embankments, dams, roadways, storage tanks, and landfills. The Horizontal MEMS Inclinometer System is used to measure settlement and/or heave within a horizontal borehole. The system comprises a uniaxial probe, cable reel and a rugged Field PC supplied with ‘data presentation software. Inclinometer probe, available with 500 mm length (other length on request), is manufactured from special 316 stainless steel in order to guarantee stability , waterproofing and anti-corrosion for long term operation. The probe incorporates MEMS technology allowing highly accurate and repeatable readings, transferred via a digital signal. Wireless communication enables a cable free data transmitting system with no connectors to corrode or break. With all these combined features, the Horizontal Digital Inclinometer System is a robust and highly accurate system that is light, compact and easy to operate in any site environment. Applications Monitor settlement or heave under embankments, dams, roadways, storage tanks, and landfills. Observation of ground movements caused by construction and excavation, such as those involved with tunneling.   Click the link below to download the brochure, for more information about this product contact us. Download HMIC Catalog (English)  

Long Term Stability Structural Health Monitoring These are ideally suited to long-term, precise monitoring of the position of a borehole over its entire length. By making a series of readings over time, it is also possible to monitor the rate of movement. These are ideally suited to long-term, precise monitoring of the position of a borehole over its entire length. By making a series of readings over time, it is also possible to monitor the rate of movement. The components of the inclinometer are a plastic casing with four longitudinal grooves cut in the inside wall, and a probe that is lowered down the casing on an electrical cable with graduated depth markings. The probe contains two mutually aligned accelerometers, to measure the tilt of the probe in mutually perpendicular directions. The probe is also equipped with a pair of wheels that run in the grooves in the casing and maintain the rotational stability of the probe. Typical applications include: Detecting zones of movement and establish whether movement is constant, accelerating, or responding to remedial measures. Checking that deformations are within design limits, that struts and anchors are performing as expected, and that adjacent buildings are not affected by ground movements. Verifying stability of dams, dam abutments, and upstream slopes during and after impoundment. Click the link below to download the brochure, for more information about this product contact us. Download VDIS-500 Catalog (English)   Sensor Specification Applied Sensor 2-Accelerometer Measuring Range  ±30° , ±15° Resolution 0.005 mm / 5m Rating output ±5.00VDC Nonlinearity ±0.02% FSR Repeatability ±0.01% FSR Temperature coefficient Less than 0.002% FSR/ ℃ Sensitivity 1.0 ±0.001 Temperature range -20∼50 ℃ System Specification Wheel base 500 mm System accuracy ±2 mm / 25m Minimum radius curve R 4.5 m (Data reading) Dimension ф27 × 660 mm Weight 2.0 kg Material Special stainless steel Waterproof 1000 cm H2O (more on request) Accessories Aluminum caring case Control cable Minimum radius curve R 120 mm Out diameter ф 8mm Cable 0.35 mm2 × 6C Material of cable Polyurethane rubber Weight About 8.5kg / 50m Cable Length 50 to 500 m (On request)