Soil Instruments Invert & Hanging Pendulum Systems

Hanging Pendulums are used for accurate and long term monitoring of horizontal structural movements of large structures such as dams, bridges and other tall buildings. The upper end of a steel wire is anchored to the structure under observation. A weight suspended from the lower end is free to move in an oil tank, the oil serving to damp oscillations of the wire. Displacements relative to the wire may be measured using a portable optical readout unit or for remote reading, an automatic x- y coordinator. Measurements can be made at one or several elevations along the wire, taking readings of two perpendicular components of horizontal movement at each elevation. 

For more informations go to: https://soil.co.uk/products/inclination/



The Inverted Pendulum uses identical measuring devices as the hanging pendulum and consists of a wire, anchored in stable ground beneath the structure, with a float fixed to its upper end. The float, which is free to move in a water tank, tensions the wire and keeps it vertical. The Soil Instruments Automatic Pendulum Readout uses Charge Coupled Device (CCD) arrays and laser diode emitters to determine the position of a pendulum wire within the central reading aperture. No contact is made with the wire in any way, the measurement being completely contactless. The reading arrays are corrected automatically for temperature and the entire readout can be replaced without the need to move the pendulum wire. A permanent digital display can be connected to the readout unit and displays the x & y position in millimetres, updated 2 times per second. The readout also has an RS485 and an analogue output allowing it to be incorporated into almost any data acquisition system.

PRODUCT FEATURES 

  • Measuring accuracy can be greater than that obtained by precise geodetic surveying
  • Movements can be observed at frequent intervals without repeated and costly surveys
  • Manual or automatic readouts available
  • Pendulum instruments are simple and therefore reliable in long-term use

PRODUCT BENEFITS

  • Movements can be observed at frequent intervals without repeated and costly surveys
  • Ideal for long-term use
  • Can read X, Y and Z movement
Модел Inverted and Hanging Pendulum Systems
Hanging Pendulum
Съставни елементи Въже Тежест Маслен резервоар
Материал Неръждаема стомана Стомана PVC
Тегло 3.5kg 29kg 3kg
Размери 800mm x 50mm x 50mm Ø252mm x 203mm Ø680mm x 520mm
Inverted Pendulum
Съставни елементи Поплавък Резервоар Съпътстващ подпорен елемент на въжето Въже
Материал Полипропиен Неръждаема стомана Стомана
Тегло 11kg 15.5kg 13kg 8kg
Размери Ø610mm x 400mm Ø790mm x 540mm 1040mm x 550mm x 250mm 600mm x Ø50mm
Въже
Материал 316 степенна неръждаема стомана
Тегло 16g/m
Размери Ø1.6mm
Натоварване на проводника 280kg
Поплавък
Сила на опън 58kgf
Вземане на отчети
Съставни елементи Линейна скала Отчитаща стрелка
Материал Неръждаема стомана
Тегло 7.5kg 4kg/чифт
Размери 450mm x 450mm x 6mm 750mm x 135mm x 40mm
Отчитащо устройство "Portable Pendulum"
Диапазон X = ±75mm,  Y = ±75mm
Окуляр Без окуляр | 45° | 90°
Резолюция 0.1mm
Повтаряемост* ±0.1mm
Точност ±0.1mm
Тегло 4kg
Отчитащо устройство "Automatic Pendulum (CCD)"
Диапазон X= ± 25mm,  Y = ±25mm X = ±25mm,  Y = ±50mm X = ±25mm , Y = ±50mm,  Z =  ±25mm
Резолюция 0.01mm
Повтаряемост ±0.1mm
Точност ±0.1mm
Тегло 9kg
Работна влажност 100% относителна влажност без кондензация
Температурен диапазон от -15 до + 60°C
Комуникация RS485
Аналогов изход 4-20mA
Захранване AC 85V - 220V ±20% 50Hz - 60Hz 24V DC - опция при заявка
Размери 380mm x 330mm x 145mm

* В зависимост от опита на оператора

The Inverted Pendulum uses identical measuring devices as the hanging pendulum and consists of a wire, anchored in stable ground beneath the structure, with a float fixed to its upper end. The float, which is free to move in a water tank, tensions the wire and keeps it vertical. The Soil Instruments Automatic Pendulum Readout uses Charge Coupled Device (CCD) arrays and laser diode emitters to determine the position of a pendulum wire within the central reading aperture. No contact is made with the wire in any way, the measurement being completely contactless. The reading arrays are corrected automatically for temperature and the entire readout can be replaced without the need to move the pendulum wire. A permanent digital display can be connected to the readout unit and displays the x & y position in millimetres, updated 2 times per second. The readout also has an RS485 and an analogue output allowing it to be incorporated into almost any data acquisition system.

PRODUCT FEATURES 

  • Measuring accuracy can be greater than that obtained by precise geodetic surveying
  • Movements can be observed at frequent intervals without repeated and costly surveys
  • Manual or automatic readouts available
  • Pendulum instruments are simple and therefore reliable in long-term use

PRODUCT BENEFITS

  • Movements can be observed at frequent intervals without repeated and costly surveys
  • Ideal for long-term use
  • Can read X, Y and Z movement
Model Inverted and Hanging Pendulum Systems
Hanging Pendulum
Components Rope Weight Oil tank
Material Stainless Steel Steel PVC
Weight 3.5kg 29kg 3kg
Sizes 800mm x 50mm x 50mm Ø252mm x 203mm Ø680mm x 520mm
Inverted Pendulum
Components Float Reservoir Accompanied rope support member Rope
Material Polypropylene Stainless Steel Steel
Weight 11kg 15.5kg 13kg 8kg
Sizes Ø610mm x 400mm Ø790mm x 540mm 1040mm x 550mm x 250mm 600mm x Ø50mm
Rope
Material 316 grade stainless steel
Weight 16g/m
Sizes Ø1.6mm
Wire Load 280kg
Float
Tensile Strength 58kgf
Getting reports
Components Linear scale Reporting arrow
Material Stainless Steel
Weight 7.5kg 4kg/pair
Sizes 450mm x 450mm x 6mm 750mm x 135mm x 40mm
Portable Pendulum Reading Device
Range X = ±75mm,  Y = ±75mm
Eyepiece No Eyepiece | 45° | 90°
Resolution 0.1mm
Repeatability* ±0.1mm
Accuracy ±0.1mm
Weight 4kg
Automatic Pendulum (CCD) reading device
Range X= ± 25mm,  Y = ±25mm X = ±25mm, Y = ±50mm X = ±25mm , Y = ±50mm, Z = ±25mm
Resolution 0.01mm
Repeatability ±0.1mm
Accuracy ±0.1mm
Weight 9kg
Operating Humidity 100% RH non-condensing
Temperature Range from -15 to + 60°C
Communication RS485
Analog Output 4-20mA
Power AC 85V - 220V ±20% 50Hz - 60Hz 24V DC - optional on request
Sizes 380mm x 330mm x 145mm

* Subject to operator experience