Inclinometer for inclination measurement in the range of ±10 degrees 



The inclinometer NB3 is a static accelerometer preferably employed for measuring small inclinations.
The sensor's primary transformer consists of a capacitive spring-mass system with gas-dynamic damping.
The sensor is manufactured either with an analog DC or a pulse width modulated output. The integrated sensor electronics require only minimal power and are in conjunction with the capacitive primary transformer characterized by high accuracy and long-term stability.


The NB3 is suitable for applications requiring a small, light sensor for measurement of relatively small inclination angles.
Typical areas of application include measuring instruments and inspection systems, vehicles, automation and safety engineering, scientific devices, medical and communications equipment as well as leveling systems.

Technical Specifications

Dimensions see dimension drawing 
Measuring range ±10 degrees 
Display range ±20 degrees 
Resolution <0,001degrees
Linearity deviation  <0,2% F.S. 
Transverse sensitivity  negligible 
Settling time  approx. 0.3 seconds (shorter times optional) 
Supply voltage (regulated) Ub  5V
Permissible supply voltage range  3V ... 6V
Current drawn at Ub=5V  approx. 1mA 
Degree of protection IP65 
Operating temperature  -40 bis +85°C (125°C optional)
Storage temperature -45 bis +90°C (125°C optional)
Weight without cable  approx. 25 grams
Electrical connection  3 highly flexible wires Øapprox.1mm, length 18cm
0,5m shielded cable Ø2,1mm
3 flexible Teflon-coated wires

Values for analog DC output at UbN=5 Volt 

Sensitivity approx. 17mV/degree
Temperature drift of sensitivity  < +1·10-2%/K 
Temperature drift of zero point  < ±0,025mV/K 
Zero offset at Ub=5V  2,5±0,1Volt - generally: 0,5Ub±4% 
Output impedance

10 kOhm

on request: PWM-output

Dimensions (in mm) and Connections

Attention! The supply voltage must not exceed 6 Volt and the polarity must not be reversed.

Attention! These sensors are not suited for applications subject to high mechanical shocks!


SEIKA Mikrosystemtechnik GmbH - Söllerweg1- D 87487 Wiggensbach - email: seika@seika.de - Tel.+49 8370 9290070 - FAX:+49 8370 9290079