Products

DST tilt

Measuring tilt in 3-D

Overview

Dimensions (diameter x length): 15mm x 46mm
Sensors: 3-D tilt, temperature, pressure (depth)
Standard temperature range: -1°C to +40°C
Temperature accuracy: +/-0.1°C
Depth ranges: 30m, 50m, 100m, 270m, 800m, 1500m, 2000m or 3000m
Depth accuracy: +/-0.4% of selected range
Tilt angle range: 160° (+/-80°)
Tilt accuracy: +/-3°
Memory size (bytes):  261,564 bytes/temp-pressure 3 bytes, tilt 6 bytes
Battery life: 4 years
Housing material: Alumina (implantable, biocompatible ceramic material)

Description

The DST tilt is a miniature data logger that measures and records temperature, depth and tilt (in three directions) in relation to the gravity field. Tilt measuring range is 360°, the data for the tilt are shown in degrees (°). Recorded data is stored in the logger‘s internal memory with a real-time clock reference for each measurement.

The DST tilt is supported by the SeaStar software and the Communication Box which serves as an interface between the logger and a PC.  Communication between the logger and the Communication Box is wireless.

In SeaStar, the user sets the start time, start date and sampling interval before starting the recorder. Up to seven different intervals can be set for the same measurement sequence. This is especially useful when more frequent measurements are needed at a certain time period.

With default programming depth, temperature, and tilt are recorded at the same time. Optionally, temperature-depth and tilt can be set as primary and secondary parameter pairs/parameters with different sampling frequency. That way memory partitioning can be customized according to individual preferences.

When the DST has been recovered, recorded data is uploaded to SeaStar where results are displayed both in graphic and tabular form. After retrieving the data, the DST can be re-programmed and reused as long as the battery lasts.

A set of Communication Box and SeaStar software needs to be purchased with the first order.
For more information about accessories please click here.

Examples of Application

DST tilt is both used for analyzing movements and behavior of fish and marine animals as well as for studying various underwater gear. 

The DST tilt is suitable for studies in e.g. :

• Fish and marine animal tagging
• Fishing gear studies
• ROV and AUV orientation studies
• Orientation of boreholes
• Any other field where tilt angle monitoring is required

Accessories
For external tagging of fish Star-Oddi can provide a special tag holder kit. Star-Oddi also offers Adjustable Housing for DST tilt, specially designed to immobalise the logger and protect it against harsh knocks. It has flexible mounting options, making it easier to fasten to gears and cables. More details here.

DST tilt - Product sheet (PDF)