Inclinometers handle harsh industrial environments.
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Press Release Summary:
Series SCA61T offers internal temperature measurement and compensation, and long term stability better than 0.25 mg. Maximum offset error guaranteed over entire temperature range of -40 to 125°C, without additional compensation, is less than 15 mg for ±1 g sensor. Models SCA61T-FAHH1G and SCA61T-FA1H1G are 4 V/g and 2 V/g units that measure up to ±0.5 g at ±30° and ±1 g at ±90°, respectively. They feature analog output along with digital SPI output.
Original Press Release:
SCA61T Series - The Most Accurate MEMS Inclinometer in the World
Based on the proven MEMS technology and highly integrated electronics, VTI Technologies has developed a new inclinometer/accelerometer component family. The versions of the new SCA61T Series are equipped with internal temperature measurement and compensation, which offers additional external compensation. This together with a long term stability better than 0.25mg enables extremely high accuracy over the temperature range (-25...85°C). The maximum offset error guaranteed over the entire temperature range (-40...125°C), without additional compensation, is less than 15mg for a ±1g sensor.
The new sensor has an analog output with wide load drive capability, along with a digital SPI output, which both acceleration/inclination and temperature can be read. The resolution of the analog signal over an 8Hz bandwidth is 40 µg, whereas the digital resolution is 0.05%/FS. The SPI interface also enables field calibration to compensate for mounting errors.
In addition to offering continuous monitoring of internal interconnection failure and self test deflection, the analog output has a limiter function. These make external failures, whether short or open circuits, easily detectable. Like all other VTI products, the SCA61T Series are pick-and-place mountable and can be soldered using standard re-flow processes. They are completely lead free and thus environmental friendly.
The first available products in the SCA61T Series are SCA61T-FAHH1G (4 V/g) and SCA61T-FA1H1G (2 V/g), which are able to measure up to +/-0.5 g (+/-30°) and +/- 1 g (+/-90°) respectively. Designed for accurate inclination measurements, these products show excellent reliability and performance in any harsh industrial environment. Both parts typically have zero point temperature dependence less than 2mg (0.1°) over the temperature range from 0...70°C and 4mg (0.2°) over the temperature range from -25...85°C. These errors can be individually compensated to reach the highest accuracy.
In instrument applications, the final accuracy is limited by the noise level of 15 µg/√Hz. The sensors are insensitive to vibrations due to the over-damped sensing elements. These extremely accurate sensors can withstand mechanical shocks of more than 20,000g.
About VTI Technologies
VTI Technologies is a world leader in the design and production of silicon capacitive inertial sensors having wide expertise in motion measurement. VTI Technologies is the market leader as a supplier of the low-g sensors to the automobile industry and has now launched various products for the industrial market. VTI's competence in sensors, together with selected partners, creates solutions that improve safety, security, health and quality of life.
VTI offers solutions for a wide range of customers in application areas that include: acceleration, motion, shock, vibration, inclination and pressure. VTI's factory, which is located in Finland, is dedicated to high quality micro-machining and manufactures products from sensing elements to complete stand alone modules.
