Arranging 2 and 3 axis velocity sensors and water level sensor at interval of 10cm to measure wave flux at 0.5 second cycle.

Our electromagnetic current sensors for hydrographical experiments have been fully remodeled, following 30 years of user patronage. The new series of EM sensors have digital output and high-speed sampling rates, and they are less sensitive to magnetic noise. This is also applied to the High-Sensitivity Water Level Sensor.
The new-generation sensors can be connected to a small interface box, which acts as a multiplexer that facilitates simultaneous measurements of up to four different sensors. Individual sensors can also be operated with analog output. New isolation circuitry allows the Water Level Sensor to be placed within 5 cm of the current sensor without affecting the current measurement.

Specification
  2-axis velocity sensor 3-axis velocity sensor Level/Height sensor
Sensor name ACM2-RS ACM3-RS ACH-300RS
(ACH600RS)
Parameters XY horizontal 2-way Vel. XYZ 3D velocity Water level/Wave height
Range ±250cm/s in 2 axis ±250cm/s in 3Daxis 300mm STD (600mm)
Accuracy ±2% or 0.5cm/s ±2% or 0.5cm/s ±0.5% FS
Resolution 0.1cm/s 0.1cm/s 0.1mm
Zero point stability within 0.1cm/s within 0.1cm/s
Time constant 0.05, 1, 5s (alternative) 0.05, 1, 5s (alternative) Responsible to 5Hz
wave
Sampling rate 15 to 70Hz
(depend to num)		 15 to 60Hz
(depend to num)		 15 to 80Hz
(depend to num)
Digital output signal RS232C RS232C RS232C
Analog output signal -1V to +1V -1V to +1V -1V to +1V
Power source DC12V DC12V DC12V
Dimensions Max. 34D, 420L mm Max. 34D, 420L mm Max. 35, 664L mm
Detecting parts 6D, 18Lmm 20D mm spherical 350mm STD (700mm)
Pressure-resistance of
detecting parts		 5m/24hrs 5m/24hrs
Cable 6mm polyurethane
6 conductors		 6mm polyurethane
6 conductors		 6mm polyurethane
6 conductors
The water current carries electrical charges, which move through the magnetic field generated by the coil. The moving charges induce a voltage potential in the opposing electrode pairs (1 ,3) and (2,4), which is directly proportional to the speed o‚† the current. The electrode pairs form orthogonal (X,Y) axes so that the current speed is given by

Together with the compass information, V can be refer-enced to this Earth coordinates.
Interface
Model ACM-4IF
Max. connecting No. 4 sensors
Power source AC100V to 230V
Dimensyion 260 X 190 X 40mm