GEO Instruments & Sensors

Jewell Instruments divides its Geo tiltmeters into eight different series based on model numbers. Some of the resolutions are reported in nano radians, reflecting the extreme sensitivity of some of these instruments.

Geo Catalog
GEO Instruments & Sensors

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755 & 756 Miniature Tilt Sensors

755 & 756 Miniature Tilt Sensors

Highlights:

755- and 756-Series Miniature Tilt Sensors contain one or two of our electrolytic tilt transducers in a solid stainless steel or aluminum housing, with holes for vertical or horizontal mounting. These are the same high-precision sensors that we use in our 500– and 700-Series tiltmeters. Several of the models are available in vacuum-compatible versions designed for minimal outgassing under high-vacuum conditions. Two options are available, the high-gain 755-Series and mid-range 756-Series. Typical applications for these compact modules include X-ray mirrors, telescope mounts, wind tunnel models, and medical devices. The sensors may be operated at a distance (cable length) up to 100m from their Jewell Instruments signal conditioner.

Model 801 “Tuff Tilt” Tiltmeter SeriesModel C904 Clinometer Pak 420

Model 801 “Tuff Tilt” Tiltmeter Series

Highlights:

The Model 801 “Tuff Tilt” Tiltmeter series combines high precision and durability in an economical instrument package. Using an absolute gravity referenced electrolytic sensor, the 801 series delivers superior measurement accuracy with virtually no long-term drift. Units are available in a variety of configurations including single axis (uniaxial), or dual axis (biaxial), analog, digital, or 4-20mA outputs.

All units are rated IP65 waterproof for advanced protection from the elements.

 

 

Model 850 MEMS Tuff Tilt Series

Model 850 MEMS Tuff Tilt Series

Highlights:

This geotechnical MEMS tiltmeter is available in uniaxial and biaxial configurations. It presents a robust and rugged design for outdoor geotechnical use, but with the benefit of low-cost MEMS technology and ±5VDC, 0-5 VDC, or 4-20 mA output signals. It is an effective tilt sensing solution for platform leveling/positioning, structural monitoring, construction monitoring, industrial machinery positioning, radial gate measurement & control.

ROHs

 

Model 875 Mini Tuff Tilt

Model 875 Mini Tuff Tilt

Highlights:

The model 875 Mini “Tuff Tilt” Tiltmeter combines high precision and durability in a miniaturized and economical instrument package. Using MEMS technology, the 875 delivers superior measurement accuracy with virtually no long-term drift and a resolution of 0.05°. Output options include 0.5-4.5Vdc, 4-20mA and digital RS-485. All units are rated IP67 waterproof for advanced protection from the elements. Use the 875 Mini “Tuff Tilt” for structural monitoring, angle measurement, and control, platform leveling, testing and research, OEM, and more.

RoHs

Model 901 & 902 Clinometer

Model 901 & 902 Clinometer

Highlights:

Model 901 (horizontal) and 902 (vertical) Uniaxial & Biaxial Clinometers accurately measure an angular position with the same performance as Model 900, but in a slim design for use where space is limited. High-gain, standard, and wide-angle versions are available, each with a different angular range. A901 and A902 (biaxial) use high-level voltage outputs to allow signals to be delivered over long cables. C901 and C902 – also referred to as ‘Tulip’ (uniaxial) are loop-powered, so measurements can be made using an economical 2-wire pair. These conveniently sized, low-cost units fit neatly into underwater pressure housings, well logging tools, drilling equipment, and many other devices.

 

 

Model 906 Little Dipper In-Place Inclinometer

Model 906 Little Dipper In-Place Inclinometer

Highlights:

Little Dipper is an in-place inclinometer system for monitoring slopes, embankments, deep excavations, tunnels, tank foundations, retaining walls, and other types of ground movement. Installed as a string of vertical or horizontal sensors inside inclinometer casing, or by direct burial, this instrument provides a continuous record of ground displacement. Fiberglass rods connect the sensors inside the casing, and fins or universal pivots couple the sensors to the casing walls. Little Dipper’s on-board electronics accept a wide input voltage range and drive long cables without signal loss. The waterproof and non-corrodible ABS sensor housing also makes the Little Dipper a popular tool for underwater tilt measurements in shallow marine applications. Select analog voltage output (biaxial) or 4-20 mA output (uniaxial only).

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