Page 154 - Jewell Geophysical - Geotechnical Instrument Catalog

Model 755-High-gain , 756-Mid-range

Miniature Tilt Sensors

The high-precision sensors in our 500- and 700-Series
Tiltmeters are available as standalone modules for
applications with size or weight constraints. Small and
light, 755- and 756- sensors mount directly to critical
system components, and are ideal for precision
measurement and control applications where space is
limited. Units are also available non-outgassing (-VAC)
versions for specialized vacuum applications. Standard
biaxial modules also include a LMC35Z temperature
sensor (not available for –VAC versions).

For peak performance, use your Miniature Tilt Sensors
with Jewell’s precision signal conditioning electronics.
All Miniature Tilt Sensors include calibration when
ordered with Jewell electronics.

755- Series 756- Series

Total Range (max)1 High-gain Type Mid-range Type
±0.5° ±10°

Linear Range ±0.25° ±5°

Resolution <0.1 μradian (0.02 arc sec) 1.0 μradian (0.2 arc sec)

Repeatability 1 μradian (static) 2 μradians (static)
Non-Linearity (typical)2 1% half span (7% full span) 0.5% half span (2% full span)

Natural Frequency 0.8 Hz 1.3 Hz

Time Constant 0.5 sec 0.4 sec
Kz Temp Coefficient (bias/°C)4
Ks Temp Coefficient (%/°C)3 & 4 ±3 μradians/°C (typical) ±10 μradians/°C (typical)
0.04%/°C (typical) 0.05%/°C (typical)

Environmental -25 to +80°C operation and storage, non-submersible

Dimensions See table

Materials 304 SS (Anodized Al available on request)

Specifications subject to change without notice on account of continued product development; 1Custom ranges available; 2Max non-linearity

from BFSL drawn through calibration curve, to 0.05% linearity with 5th order polynomial; 3Ks = % change in scale factor per °C typical; 4For exact

Kz & Ks coefficients, we can offer custom temperature characterization for multiple temperature points (additional changes will apply, please

contact Jewell for details)

Ordering Code:

Model No. Description

755-1172 High-gain Miniature Tilt Sensor, Uniaxial, 304 SS
755-1150 High-gain Miniature Tilt Sensor, Biaxial, 304 SS, Square
755-1129 High-gain Miniature Tilt Sensor, Biaxial, 304 SS, Round
755-1326 High-gain Miniature Tilt Sensor, Biaxial, Anodized Al, Stacked Assembly
756-1172 Mid-range Miniature Tilt Sensor, Uniaxial, 304 SS
756-1150 Mid-range Miniature Tilt Sensor, Biaxial, 304 SS, Square
756-1129 Mid-range Miniature Tilt Sensor, Biaxial, 304 SS, Round
756-1326 Mid-range Miniature Tilt Sensor, Biaxial, Anodized Al, Stacked Assembly

Jewell Instruments LLC 850 Perimeter Road, Manchester, NH 03103
sales@jewellinstruments.com • www.jewellinstruments.com • Tel (800) 227-5955

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