VibeSense Wireless Vibration Analyzer

Motionics VibeSense wireless accelerometer is a wireless sensor solution for condition monitoring of rotating machinery. It packs a piezoelectric accelerometer, a powerful onboard processor and a Bluetooth Low Energy radio module.

The piezoelectric accelerometer sensor guarantees accurate acceleration measurement in various industrial applications. The powerful processor provides onboard calculation capability for FFT, RMS calculation, peak finding, as well as raw signal collection with user configurable sampling rate and data block size. The Bluetooth Low Energy module enables communication with smart devices to allow user to send commands to the accelerometer to initiate data collection for onboard processing or transmitting back for further analysis on a phone or tablet. Without the hassle of data cable, measurements can be made more efficiently and safely.

VibeSense runs on a rechargeable Li-Po battery with Qi wireless charging enabled.

Connecting laser tachometer through the connector on top turns VibeSense accelerometer into a novel rotor balancing tool. With the step by step guide in our mobile App, anybody is able to accomplish single plane and two plane rotor balancing effortlessly.


Learn more about our product here:

VibeSense Wireless Vibration Analyzer


VibeSense Wireless Rotor Balancer

Motionics VibeSense wireless balancer is a novel rotor balancing tool. It consists of VibeSense wireless accelerometer and a miniature laser tachometer sensor.

VibeSense wireless accelerometer utilizes a piezoelectric accelerometer to guarantee accurate acceleration measurement. It has a powerful onboard processor to process both accelerometer and tachometer signals, perform FFT and calculate vibration and phase readings for rotor balancing. Wireless signal transmission is achieved by Bluetooth Low Energy that allows users to directly communicate with the sensors and perform balancing work on a smart phone or tablet.

The miniature laser tachometer can be attached to the VibeSense wireless accelerometer through the connector on top for phase measurement. With the included right-angle adapter, users can easily adjust and target the laser at any spot on the testing rotor. An extension cable can also be used to extend the laser reach.

Both single plane and two plane, inbound and overhung balancing are supported in our mobile App. With the animated step by step guide, anybody is able to accomplish rotor balancing work effortlessly. After balancing, a PDF report will be generated and saved for further assessment.

VibeSense runs on a rechargeable Li-Po battery with Qi wireless charging enabled.vibesense-rotor-balancer

Learn more about our product here:

Misalignment of Crankshaft in Marine Engines

Crankshaft of a marine engine is a huge part when completely assembled in the engine. At first the entire crankshaft is adjusted in a straight
line (association drawn from the center point of the crankshaft makes a straight line) before setting it on the highest point of main bearings.


In any case, with time because of different factors, the straight line may bend and misaligned. A level of misalignment is bearable and acceptable
to some extent however on the off chance if the value goes past that rated by the manufacturer; it might prompt harm or even breakage of the crankshaft.

Crankshaft with dial gauge-02-02

Following are the main reasons behind misalignment of crankshaft-

-wipe-out or damage of the main bearing
-Free engine foundation bolt leading towards vibration
-Deformation of ship’s body
-Crack in the bearing saddle
-Free main bearing bolt prompting damage of main bearing
-High bending moment on the crankshaft because of intemperate power from piston assembly
-Grounding of the ship
-Crankcase blast or fire
-A defective or destroyed stern tube or intermediate shaft bearings
-Free or broken chokes in the foundation
-Bearing pockets cracked
-Bed plate deformed – transverse girder damaged
-Tie bolts slack or broken
-Weakening of structure because of corrosion

By taking regular inspections and measures, the crankshaft misalignment can be managed and overcome to avoid any disaster.


Image credit:


Motionics Wireless Crankshaft Deflection Test Kit

Engineers and technical lads know about the significance of regular checks on Diesel motor crankshafts and cylinder liner. The old dial gauge for
crankshaft alignment checks were less accurate, caused dirt of lubricants and were much more time consuming.

Furthermore, it included marking the test points at different required angles and then taking the readings of the dial gauge at marked points.
Most of the times, measurements did not go well because of manual work.

Considering all these hard works and uncertainties with low accuracy rate, Motionics have built a custom Crankshaft Deflection Test Kit which comes
with ease of testing, taking wireless readings, safe to test with high accuracy rate and zero error.

Motionics Wireless Crankshaft Deflection Test Kit utilizes Motionics Bluetooth crankshaft gage for crankshaft web deflection test. By simple tapping
on iPad, users can have deflection data recorded easily and error-free.


Thanks to the built-in angle measurement, there is no need to mark test points on the crankshaft web again. The Crankshaft Test App will notify users
once the crankshaft rotates to test locations.

Included in the Package:

Motionics Wireless Crankshaft Gage
Adjustable Probe
Extension Rode Set (1/2″ to 6″ one each)
60° Punch
Protective Carrying Case
USB Charging Cable
USB Power Adapter
Crankshaft Deflection Test App for iPad

Email report and wireless print:
Motionics Wireless Crankshaft Deflection Test Kit is the ultimate solution for testing crankshaft deflections.It allows you to keep a track of the
readings at different required angles.You can import the readings on your devices to keep track of the measurements.


How to Measure Crankshaft Deflection

What is Crankshaft Deflection?

Crankshaft Deflection happens after some time, amid the repeated and constant utilization of the crankshaft.
It is a procedure that happens out of sight as the motor works and, however it can’t be seen without a detection instrument, it causes huge harm to the

Without correcting the movements in the crankshaft after some time, the machine will wear unevenly, cause undue weight on the supporting segments.
This will diminish the valuable lifetime of the motor, making it wear out rashly. This normally happening issue can be effectively corrected with little

imagesimages (1)
Image reference:

The Need to Measure Deflection:

Crankshaft comprises of crank-webs, crank pins and journals along its length. The weight of the crankshaft is upheld by the main bearings at the journals.
Over some time frame as the motor continues running, the wear in the bearings may not be uniform across the whole length of the crankshaft.

This implies the crankshaft won’t stay in the underlying straight line yet will get bend either upward or downwards to a slight degree which may not be
noticeable with the exposed eye but rather could be adequate to cause hazardous levels of fatigue in the crank-webs. Which is why there is need of
measuring crankshaft deflections at regular intervals to guarantee that the alignment of the shaft is within secure and permitted limits.

How to take Crankshaft Deflections?

The figure below gives an idea of which measurement is taken to discover the deflection of the crankshaft. As should be obvious from the image a dial
gauge is placed between the crank-webs to discover the distance between them. If the deflection is measured after a specific time interval, it is
must that it should be taken at the exact same point otherwise the reading won’t give a genuine reflection about the level of deflection.
Typically a center punch is utilized to make markings with the goal that each time the deflection is taken at a similar point.


Aside from using the exact same point on the crank-webs for measuring deflection there are different factors which should be remembered and these
incorporate load on the motor, trim, hog, sag etc. Preferably the deflection should be taken at four points of the crank namely top, bottom and the
two sides.

In genuine practice anyway the bottom reading isn’t taken because of risks of fouling by the connecting rod and rather readings are taken on both sides
of the bottom position, and in total 5 readings are taken from each crank-web at the positions appeared in the figure below.

5 positions (1)
Image reference:

Functions of Crankshaft in an Engine

What is Crankshaft?

A crankshaft is a shaft with at least one cranks, particularly the primary shaft of an inner ignition motor to which the interfacing rods are appended.
The interfacing rod shakes back and forth as the crankshaft rotates.

The crankshaft is a fundamental piece of the motor in charge of converting reciprocating to rotational movements. In a basic dialect, it is a shaft
with a progression of crank and crank pins, which are appended to the associating rod of the motor. These days the substantial motors have
multi-cylinders and the crankshaft is important to drive the cylinders.

Image reference:

Functions of the Crankshaft in an Engine:

This instrument is exceptionally important to give a smoother drive to the vast motors which have multi-cylinders. They are in charge of changing
the linear movement of the piston into the rotational motion. This explicit piece of the motor is made with the way toward producing the composite
of iron ore called steel.

While outwardly inspecting the crankshaft, you can discover the rod bearings are almost balanced or erratic. Here the balance of the shaft changes
the responding movement (all over) of the piston in the rotating motion of the crankshaft.
Regularly the shaft is bored with minute holes which feed the motor with the oil important for smooth activities, sometimes this mechanical part
consists of counterweights which help in adjusting the framework and the heaviness of the connecting rod. It additionally guarantees to adjust the
power while rotation of the moving parts.

Each motor is structured explicitly and so is the crankshaft. Its design differs with the size and number of cylinders in the motor.
Highlighting an example, in a four-stroke motor, the crankshaft will have four crank throws. These throws connect the four pistons and are
effectively associated with the flywheel of the motor.

While driving the motor or amid the ignition cycle the crank throw fills in as a lever arm, which pushes and pulls the cylinder.
This significantly makes a progressive rotational movement in the motor.

The crankshaft causes the cylinder to complete its rotation and the throw will restore the piston at the highest point of the cylinder.
This item needs exceptionally smooth designing while production regarding its weights and balancing. Such engineering is important to lessen
the vibrations in the motor.
Such, vibrations can be extremely unsafe to the vehicle and can even prompt significant accidents.

Wireless Laser Rangefinder

Motionics Wireless Laser Rangefinder (WLRF) packs a WASP-200 LRF ultra-compact laser rangefinder. It is capable of quickly and accurately identifying the distance to a target up to 200m away. With built-in Bluetooth Low Energy transmitter, laser measurement readings can be wirelessly viewed and collected on iPhone/iPad.

There is an inclinometer embedded inside WLRF to monitor device tilt angle simultaneously with laser distance measurement, facilitating applications that require intersection scanning.

WLRF has a standard ¼-20 thread mounting hole to allow user to easily mount the device on a common tripod for quick and steady setup.



  • Dimension: 120 x 78 x 43 mm
  • Weight: 300 g
  • Resolution: 1 cm
  • Accuracy: 10 cm
  • Measurement Range: 0.2 to 125 m (18% reflectivity); 0.2 to 200 m (80% reflectivity)
  • Laser Class: Class 1
  • Wireless Data Rate: 10 Hz
  • Transmission Range: up to 10 m
  • Working Temperature: 0 – 50ºC
  • Battery: 3200 mAh rechargeable
  • Battery life: 30 hrs

Check out our store for more information: 

More information: