Bluetooth Tide Gauge

TideM8 is a combination of the Ohmex TideM8 miniature tide gauge system and Trimble's Juno hand-held Mobile PC with integrated GPS. The system is a new design based on the 'Winstrument' concept of an instrument using Bluetooth communications and Mobile PC equipment as the user interface.   Using the latest low power processor and flash memory technology, the new gauge design offers precise calendar and time-keeping functions together with solid state data retention. The internal data logging will retain up to ten years of data readings, each record containing time, date, average tide, water temperature, barometric pressure and wave range.... (read more)
2007-08-10 01:49:12

Versatile Tide Gauge

Valeport Ltd, UK, has introduced a seabed-mounted tide recorder that makes precise water level measurements where conventional units attached to piers and jetties are not practicable. Applications are in oceanography, hydrography and marine civil engineering projects. Called the MIDAS Tide Recorder, the new instrument is also designed to be part of an in-line mooring. The high accuracy (±0.01 per cent) pressure sensor and temperature sensor is housed in acetal rated to 1,000m water depth. The MIDAS Tide Recorder has a wide range of sampling regimes and rates. It can sample at 1, 2, 4 or 8Hz and can log/output data... (read more)
2003-10-25 12:00:00

Real-time Tide Gauge Enforces Network

The 44th tide gauge for SHOM’s RONIM1 network has been installed in Port-la-Nouvelle, near Narbonne (France) on 29 May 2013. The installation improves the cooperation between the SHOM and the Languedoc-Roussillon region which already includes tide gauge installations in Sète and Port-Vendres. The measurements of the tide gauge in Port-la-Nouvelle are available on the REFMAR2 portal and on the website of the Commission Océanographique Intergouvernementale (COI). (read more)
2013-06-03 09:40:13

Tide Gauge and Water Temperature Monitoring Network for the UAE

OceanWise is working with Seatronics to complete a three-year project to design, install and deliver a fully operational network of 34 water level and temperature monitoring stations for Bayanat LLC in the United Arab Emirates (UAE). The stations are positioned at strategic locations within UAE from the Western Region to the border with Oman, covering a distance of over 400km. Water level is being measured using Valeport VRS-20 Radars with water temperature being measured using PT100 sensors from General Acoustics. All equipment is solar powered and housed in Valeport's TideStation enclosures. Communication with the stations is being handled using the... (read more)
2017-06-27 08:48:30

Underwater Metal Thickness Gauge

Niras (Denmark) were recently tasked with the inspection of pilings in Copenhagen harbour. They chose a Tritex Multigauge 3000 Underwater Thickness Gauge for the purpose. The Multigauge 3000, supplied by Force Technologies and manufactured by UK-based Tritex NDT Ltd, uses multiple echos to measure the metal thickness without removing coatings.     The Multigauge 3000 has a large bright 10mm LED display that can be seen even in poor visibility conditions. It also has a topside repeater option that can be added at a later date if required by simply replacing the end cap. The Tritex standard features include Intelligent... (read more)
2009-07-13 02:11:09

MVP "CAST" Gauge

ODIM Brooke Ocean has enhanced its ODIM MVP (Moving Vessel Profiler) technology to include a "CAST Gauge" (Computer Assisted Sound speed Technology). The CAST Gauge is a visual and numerical tool that will assist the hydrographer in deciding when to make a sound speed cast, how deep the cast should be, and at what times the casts should be executed. All based on the survey requirements.     The CAST Gauge is a technology that integrates the science behind the "uncertainty wedge", originating from research at the Ocean Mapping Group, University of New Brunswick, and that of the Total Propagated... (read more)
2009-05-01 03:29:14

Hands-free Wall Thickness Gauge

The Cygnus 2 Hands Free uses the Cygnus multiple echo technique to ensure accurate, reliable measurements without the need to remove protective coatings. Therefore inspection time and costs are reduced. The Cygnus 2 Hands Free can be either clipped to a harness or worn around the neck. The display on the top of the instrument can be easily viewed by glancing down. What's more, the latest Cygnus 2 has a simple keypad and a bright, clear organic LED display which is adjustable for all light conditions.The device can be used for situations where monitoring metal thickness is important, for example... (read more)
2010-12-16 12:00:00

Ultrasonic Data Logging Thickness Gauge

The Cygnus 3 Data Logger multiple echo thickness gauge is developed to accommodate the need for a simple yet versatile method of logging thickness measurements through coatings. The device is engineered with a flexible data logging facility. The gauge offers three data logging modes: simple linear data logging with a capacity of up to 5000 points each record; grid-based data logging using simple XY grids for up to 5000 points; template-based data logging featuring definable measurement points, minimum and reference thickness values and up to 40 configurable user fields to collect additional information.The equipment also benefits from a facility to... (read more)
2010-04-07 02:27:31

RTK Tide Basics

One of the fastest emerging trends in hydrographic surveying is the use of the vertical component of RTK GPS to determine real-time water level corrections. There are currently several district offices of the US Army Corps of Engineers using this technique in place of conventional tide measurements.The main purpose of this article is to explain some of the basics behind the technique (without getting overly technical) and to point out some of the benefits and drawbacks to the method. The Basics Looking at Figure 1, let’s define the following terms: For simplicity, I am ignoring the heave-pitch-roll of the vessel... (read more)
2008-01-01 01:00:00

RTK Tide Basics

One of the fastest emerging trends in hydrographic surveying is the use of the vertical component of RTK GPS to determine real-time water level corrections. There are currently several district offices of the US Army Corps of Engineers using this technique in place of conventional tide measurements.The main purpose of this article is to explain some of the basics behind the technique (without getting overly technical) and to point out some of the benefits and drawbacks to the method. The Basics Looking at Figure 1, let’s define the following terms: For simplicity, I am ignoring the heave-pitch-roll of the vessel... (read more)
2008-01-01 01:00:00
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