All posts by Elad Nahum

Newton’s second law

September 24, 2024UncategorizedElad Nahum

Newton’s second law

Measure cart velocity and calculate gravity within few steps.

Study the relationship between force, mass and acceleration.

Using the NeuLog motion sensor NUL-213 and the connectivity module BLT-202

Watch the video to see how NeuLog makes it simple

Find out where you can buy Neulog

Newton’s second law of motion was the first to define accurately the relationship between force, mass and acceleration. The acceleration is linearly proportional to the net applied force in the same direction. The net force is equal to the mass of the object multiplied by its acceleration:

F = m • a

According to Newton’s second law, the cart’s acceleration is equal to the force that gravity exerts on the mass hanger minus the friction force, divided by the total weight of the cart and the mass hanger (with the 50 g mass):
F = f_gravity– f_friction

If you did not use the absolute value for the friction force and it is negative, add the gravity force (of the mass hanger) to the friction force (the F will stay the same).
M represents the mass of the cart (0.4 Kg with the slotted masses). m represents the mass hanger with the slotted mass (0.05 Kg).
m_T = M + m
F = m_T • a_F
f_gravity– f_friction = m_T • a_F
a_f = f_gravity– f_friction / m_T
f_gravity = m • g
a_F = ((m • g) – f_friction) / m_T

m = 0.05 Kg

M = 0.4 Kg

m_T = 0.45 Kg

g = 9.8 m/s²

f_friction = 0.21N
m_T = 0.45 Kg

a_{F calculated} = ((0.05 Kg • 9.8 m/s²) – 0.21N) / 0.45 Kg = 0.28 N / 0.45 Kg = 0.62 m/s²

The calculated a_F is very close to the measured a_F
(0.62 m/s² in our example)..

Find more experiment you can make with the Motion sensor

NeuLog Solutions – home

September 15, 2024UncategorizedElad Nahum

NeuLog Solutions

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Physics

Mechanics, Sound, Light, Heat, Electricity, Magnetism.

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Chemistry

Electrochemistry, Solar Energy, Organic chemistry, Physical chemistry, Acids and bases, Chemical solutions.

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Biology

Biochemistry, Human physiology, Plant physiology, Ecology.

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Environmental Science

Solar radiation, Atmospheric pressure, Properties of water, Wind velocity, Relative humidity.

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Robotics

Autonomous robot, Play & Explore, Run & Code, Python, Blockly, C, Arduino, making robot

Mechanics set

September 12, 2024UncategorizedElad Nahum

Mechanics Bundle

Bluetooth/USB Module
BLT-202

Photo gate
logger sensor
NUL-209

Force
logger sensor
NUL-211

Motion
logger sensor
NUL-213

Force plate
logger sensor
NUL-225

Rotary
logger sensor
NUL-226

Acceleration
logger sensor
NUL-227

Sensors Gallery 2 – Home

September 10, 2024Home PageElad Nahum

USB module USB-200

The USB module connects as a network server a logger sensor or a chain of logger sensors to the computer.

Get started by hooking it up with a USB to Mini USB cable (cable included!) to the computer (PC, Mac or Linux),
Attach the sensor or sensors to it and you’re good to go.

Battery module BAT-202

Power up your independent sensor or set of sensors with this 2300 mAh rechargeable battery module for outdoor experiments.

Recharge it with a common USB cable (included!).

Bluetooth module BLT-202

The 3 in one module,

Connects as a network server a logger sensor or a chain of logger sensors to any computer platform – with USB cable (cable included!) to PC, Mac or Linux) or Bluetooth wirelessly to a tablet or to a smartphone.

It can be used also as 2300 mAh rechargeable battery module for outdoor experiments.

Wi-Fi Communication module WIFI-202

The WiFi module allows any NeuLog sensor to connect to computers, tablets and smart phones via wireless communication.

All software comes pre-loaded on the WiFi module and does not require installation. Students simply turn on the WiFi module and it seeks an access point to connect to wireless devices.

No installation required, just plug and play.

The module can be used also as a USB module with USB cable (cable included!).

The module needs to be powered by USB adapter or by battery module.

Panda Multi-Sensor PANDA-1

The NeuLog Panda multi-sensor can be used for any science experiment which utilizes Room Temperature, Light, Barometric pressure, Altitude, Sound, Relative Humidity, Dew-Point, Magnetic Field and G-Acceleration readings.

Panda is used for environmental data collection and other experiments in Natural Science, Biology, Physics and Chemistry.

It is specially designed for primary school level.

The multi-sensor comes pre-calibrated so you can start experimentation right out of the box.

Graphic Display module VIEW-101

In case you don’t wish to use a PC, you may refer to the VIEW-101 graphic display module.

The module’s touch-screen interface along with intuitive and attractive graphics enables you to set up an experiment in a speedy and simple fashion.

It displays digitally and graphically the gathered data from up to five different sensors at a time.

Digital Display module VIEW-200

What’s an off-line set of logger sensors without the VIEW-200 display module? Simply hook it up to the set and let it do the rest.

All you have to do is scroll through the data screens – one for each logger sensor.

For the off-line set you need a battery module.

RF Communication module RF-201

The RF module is half the duo needed for a wireless connection between your PC or Display module, and a chain of sensors.

Simply attach one unit to the USB module, and another to a set of independent logger sensors (don’t forget a battery module) and that’s it!

Voltage logger sensor NUL-201

This sensor can easily and accurately measure voltages across various resistive, capacitive and inductive components.

The sensor can also measure the voltage of voltaic cells, batteries and power supplies.

Voltage can be measured in low or in very high sampling rate (up to 100,000 samples per second).

When used in conjunction with the current sensor, the dependence of the current flowing through the applied voltage can be studied in various electric circuits.

Current logger sensor NUL-202

Once this module’s 4 mm plugs are connected into an electric circuit, it measures the current through it.

Current can be measured in low or in very high sampling rate (up to 100,000 samples per second).

mA Current logger sensor NUL-248

This sensor can be used to measure the current in the mA range.

Once this module’s 4 mm plugs are connected into an electric circuit, it measures the current through it.

Current can be measured in low or in very high sampling rate (up to 100,000 samples per second).

Resistance logger sensor NUL-249

The sensor measures the current through the resistance and the voltage on it, its output is a resistance value.

Using ohm’s law (R = V/I) the resistance is calculated from the current and voltage values.

Charge logger sensor NUL-246

This sensor measures electrostatic charges.

Can be used to explore the nature of static charge, to measure both charge and voltage, to measure charge by induction, quantify the charge on a capacitor or discover the charge distribution on a conducting sphere.

Magnetic Field logger sensor NUL-214

This ultra-sensitive magnetic-field sensor unit is capable of measuring even the lowest levels of magnetic fields, that of planet earth being one of them.

This module measures in milli tesla (mT).

Temperature Logger Sensor NUL-203

This sensor is used for most disciplines. A biologist could monitor eco-systems, study photosynthesis and enzymes affected by heat or cold, while a chemist could examine exothermic or endothermic reactions. Furthermore, a physicist may use it to examine heat / energy transfer.

The sensor can measure in Celsius or Fahrenheit degrees.

The probe can be put (not the module) in boiling water or in the freezer.

Surface Temperature logger sensor NUL-233

This sensor measures surface temperature.

This module has the capability of measuring the temperature (in either Celsius or Fahrenheit) of any surface.

Wide Range Temperature logger sensor NUL-234

This hardcore sensor is capable of measuring temperature in extreme heat conditions.

From extremely low temperature to as high as that of a flame, the module’s thermocouple sensor measures them all, and displays the results in both Celsius and Fahrenheit.

Infrared Thermometer Logger Sensor NUL-235

This logger sensor measures temperature remotely using an infra-red high accurate sensor.</p?

It is very useful when access to the sample is either difficult or dangerous.

Light logger sensor NUL-204

This logger sensor packs an assortment of uses to meet a variety of necessities; from photosynthesis to light emitting chemicals, from light bulbs properties to photovoltaic cells.

Whether in the brilliance of the sunny outdoors or a poorly lit classroom, it measures it all!

The sensor’s sophisticated sampling rate modes allows for measuring fast light changes such as AC supply connected light bulbs, as well as the steady emission of sunlight.

UVA logger sensor NUL-232

Photoaging and photochemical smog, are just some of the things affected by UVA radiation.

The UVA logger sensor accurately measures the wave length of UVA, which is 320-370 nm (98% of the total UV radiation).

The light intensity rates are displayed in mW/m² (milliwatt per square meter).

UVB logger sensor NUL-230

Skin cancer, cataract, immune suppression and vitamin generation in the human body, are just some of the things affected by UVB radiation.

The UVB logger sensor accurately measures the wave length of UV light, which is 280-320 nm (2% of the total UV radiation).

The light intensity rates are displayed in mW/m² (milliwatt per square meter).

Oxygen logger sensor NUL-205

Whether in the air or dissolved in water, this module can easily and conveniently measure oxygen levels.

Useful for measuring oxygen during combustion or oxygen emitting processes such as hydrogen peroxide decomposition.

In addition to its free oxygen mode, the logger sensor can also provide data in dissolved-oxygen mode, for instances such as measuring photosynthesis of aquatic plants.

The logger sensor is highly efficient both outdoors and inside a classroom lab.

Its polarographic (Clark) technology, replaceable membranes, and Delrin® electrodes ensure an intuitive interface combined with easy-maintenance and durability.

Sensor zero-offsetting is done by a simple 3 sec. press on the sensor push button.

CO₂ logger sensor NUL-260

This sensor measures voltage created by a self-generated electromechanical reaction between the sensor and carbon dioxide (CO₂) gas in the very air around it.

The results are displayed in ppm (parts of CO₂ per million of air).

pH logger sensor NUL-206

Either in the field or in the classroom, this dependable module provides accurate means of measuring common liquids (such as water, milk, soft drinks, vinegar etc.) for their pH levels, as easily as it measures changing values in titrations or experiments involving antacids.

Sensor zero-offsetting is done by inserting it into a pH=7 buffer (or distilled water) and a simple 3 sec. press on the sensor push button.

Conductivity logger sensor NUL-215

This sensor accurately measures solution electrical conductivity on a tri-range level: micro-siemens per centimeter (µS/cm), milligram per liter (mg/L), and parts per million (ppm).

It does so with a state-of-the-art probe with two flat electrodes on a pre-determined surface, allowing the analysis of the signal behavior.

The probe includes temperature transducer for temperature compensation.

Colorimeter logger sensor NUL-219

This module determines the red, orange, green, and blue color components of any given solution by measuring color frequency.

Simply turn it on and it will send four colored lights through it.

The amount of each beam that passes is recorded and processed.

This sensor offers a twofold color analysis and value display: absorption and transparency.

Turbidity logger sensor NUL-231

This sensitive sensor projects and measures light that runs through its solution containing tube.

As the solution’s turbidity level is higher, so are the amount/intensiveness light levels.

The turbidity measurement units are Nephelometric Turbidity Unit (NTU).

Salinity logger sensor NUL-228

This sensor detects and measures salt content in a solution in three different ranges: %, ppm, mg/L.

Drop Counter logger sensor NUL-223

This module automatically and accurately does the simple, yet tedious function of counting drops and bubbles.

Perfect for titrations combined with the pH logger sensor.

Sound logger sensor NUL-212

This logger sensor has the impressive ability to measure the very sounds that are all around us in either fast (microphone) or slow (level) modes.

The fast mode (up to 100,000 samples per second) displays graphically the sound wave form.

You can spectrum analyze the signal with Neulog function.

The slow, and more thorough mode, is able to measure the actual sound pressure level, and display the results in decibels.

Add another unit, and you may now determine the velocity of sound propagation in air by timing a pulse travelling between them.

Motion logger sensor NUL-213

Utilizing a trimodal operation system, this motion logger sensor calculates distance, velocity and acceleration.

It effectively operates by transmitting a powerful ultrasonic wave and measuring the time of the echo return.

The sensor has 10 meter range and 2 meter range (for having higher sampling rate).

Rotary Motion logger sensor NUL-226

This sensor’s smooth running pulley measures angles, rotations, rotation velocity and acceleration: rev/s, rad/s², rad/s.

Flow logger sensor NUL-224

This sensor allows for a stream of water to flow through its inlet and outlet pipes, thus revolving a rotation wheel within it.

The wheel is not connected mechanically to anything else, but rather floats on a bearing for minimum friction and the enhancement of its minute accuracy.

The measuring is done by monitoring changes in the sensor’s surrounding magnetic field.

Acceleration logger sensor NUL-227

This sophisticated unit measures acceleration on a three-dimensional level. And although each is displayed separately, it supplies a full overview of the desired values.

The logger sensor measures all the three accelerations at the same time and stores it. We can run an experiment on-line, upload one dimension acceleration, freeze it and upload another, using the off-line method.

Photo Gate logger sensor NUL-209

This sensor efficiently measures time, velocity or acceleration with one or two photo gates and matching timing cards passing through them.The sensor has six modes of operation:

Velocity with a single gate
Acceleration with a single gate
Acceleration with two gates
Velocity and Momentum with two gates
Delta between two gates
Velocities with a timing card

Pressure logger sensor NUL-210

This sensor measures gas pressure can be used to investigate both Boyle’s Law and the Gay-Lussac’s Law for ideal gases and others.

Force logger sensor NUL-211

This logger sensor measures push/pull forces and impacts as well as mass to weight relationships.

The sensor itself is safely contained with a specially designed hook at the bottom that can be connected to various pulling loads.

The sensor’s probe can be hung from a universal laboratory stand.

Sensor zeroing is done by a simple 3 sec. press on the sensor push button.

Force Plate logger sensor NUL-225

This module is in fact a weight scale designed for a multi range of purposes.

Simply lay a heavy weight on its surface, or activate a forceful pressure against it, and the logger sensor will measure it.

Hand Dynamometer Logger Sensor NUL-237

This sensor comes with a hand-held unit with a built-in strain gauge.

It measures the pressing force on the hand-held unit.

Relative Humidity logger sensor NUL-207

Seemingly a simple box with a hole punctured in it, this sensor offers precise recordings of minute humidity variations.

Log relative humidity fluctuations of different weather conditions, and study its effect on tiny organisms such as seedlings or insects.

Dew Point logger sensor NUL-245

This sensor measures temperature and humidity and gives the temperature below which the water vapor in that volume of air (at a constant barometric pressure) condenses into liquid water (the dew point).

Soil Moisture logger sensor NUL-229

This clever and innovative module measures soil moisture by inserting a ceramic tipped, water filled tensiometer into the soil and measuring the resulting partial vacuum pressure.

If the soil is dry, water will be pulled out in through the ceramic holes, thus increasing the vacuum.

The vacuum level is rated and logged, reflecting directly on the soil’s moisture levels.

Barometer logger sensor NUL-221

This sensor was carefully designed to measure barometric pressure, from sea level to mountain top.

The displayed results are the full scope of commonly used units. Namely: kPa (kilopascal), atm (atmospheres), in Hg (inches of mercury), mm Hg (millimeters of mercury)

The sensor has also the range of meters (for altitude) by converting the barometric pressure to altitude.

Anemometer logger sensor NUL-242

The NeuLog anemometer sensor enables measurements of wind velocity.

Combined with temperature, relative humidity, dew point and barometric pressure sensors, it can be used to make very interesting weather measurements.

GPS position logger sensor NUL-243

The NeuLog GPS position logger sensor determines its latitude, longitude, altitude and horizontal velocity anywhere on earth through signals received from the Global Positioning System.

It can be used by itself or together with other NeuLog sensors to perform outdoor experiments in environmental science, physics and more.

A special function creates data for Google map describing the sensors’ values in trail locations.

Heart Rate & Pulse logger sensor NUL-208

Resembling a medical pulse meter, this logger sensor accurately records and measures heart rates using an infrared LED transmitter/phototransistor receiver.

The module’s plethysmograph-based electrodes ensure a dependable reading by attaching them to either finger or ear lobe, and feed accurate values on a bimodal level: either a BPM (beats per minute) or an analog arbitrary value of the measured signal mode.

Spirometer logger sensor NUL-216

This smart sensor is a user-friendly meter that can calculate the volume of the test subject’s lung by measuring the air flow that passes through its double-ported tube-shaped sensor.

The calculation is done on a sophisticated software level and the results are displayed in liters.

Note: Disposable laminated papers are included with the sensor. A paper must be rolled and put in the tube before using it and exhaling through it.

GSR logger sensor NUL-217

The tiniest emotional ripples we unconsciously experience affect our skin’s conductivity.

It is exactly these changes that the Galvanic Skin Response (GSR) sensor measures.

A sudden noise, curious smell, touch, pain or sounds are just some of the things that trigger those conductivity changing emotions.

The module is used successfully as a biofeedback system.

Unlike most biofeedback devices, this unit operates with non-disposable electrodes.

Electrocardiogram logger sensor NUL-218

Similar in its use to a regular medical ECG (electrocardiogram), this is a rather simple three lead-based logger sensor.

It presents a heartbeat graph that allows a thorough examination of the heart’s electrical activity from three different angles.

Unlike most ECG devices, this unit operates with non-disposable electrodes.

Blood Pressure logger sensor NUL-222

This sensor is very similar to any advanced digital blood pressure meter found in the modern medical arena. Simply slip the cuff onto your test subject’s arm.

The testing procedure shows what are the measured signals and how blood pressure data is extracted: systolic blood pressure, diastolic blood pressure, mean arterial pressure and heart rate.

Respiration Monitor Belt Logger Sensor NUL-236

This sensor comes with a belt and measures the air pressure in it.

The pressure changes according to the breathing of the subject. From the measured values, the respiration rate can be calculated.

Battery BAT-202

September 3, 2024UncategorizedElad Nahum

Battery module BAT-202

The Battery module supplies power to a sensor, or chain of sensors, operating in the Off-Line mode, and to sensors connected to an RF communication module.

The Battery module can be recharged by connecting it to the PC’s USB socket via the USB module’s USB cable.

The Battery module has 2300mAh rechargeable battery. A 3 colors LED indicator: Red when charging the battery; Green when the charging is completed; Orange when current is consumed from the battery.

Battery module Guide

Our Products 2

September 2, 2024UncategorizedElad Nahum

Our Products

Bluetooth
Module

WiFi Communication
Module

Panda
Multi-Sensor

Graphic Display
Module

USB
Module

Battery
Module

RF Communication
Module

Digital Display
Module

Voltage logger
sensor

Current logger
sensor

Temperature
logger sensor

Light logger
sensor

Oxygen logger
sensor

pH logger
sensor

Relative Humidity logger sensor

Heart Rate & Pulse logger sensor

Photo Gate logger
sensor

Pressure logger
sensor

Force logger
sensor

Sound logger
sensor

Motion logger
sensor

Magnetic Field logger sensor

Conductivity
logger sensor

Spirometer logger
sensor

GSR logger
sensor

Electrocardiogram logger sensor

Colorimeter logger
sensor

CO₂ logger
sensor

Barometer logger
sensor

Blood Pressure logger sensor

Drop Counter logger sensor

Flow logger
sensor

Force Plate logger
sensor

Rotary Motion logger sensor

Acceleration
logger sensor

Salinity logger
sensor

Soil Moisture logger sensor

UVB logger
sensor

Turbidity logger
sensor

UVA logger
sensor

Surface Temperature logger sensor

Wide Range Temperature logger sensor

Infrared Thermometer logger sensor

Respiration Monitor Belt
logger sensor

Hand Dynamometer logger sensor

Calcium logger
sensor

Chloride logger
sensor

Ammonium logger
sensor

Nitrate logger
sensor

Anemometer
logger sensor

GPS logger
sensor

Dew Point logger
sensor

Charge logger
sensor

Geiger counter
logger sensor

mA Current
logger sensor

Resistance
logger sensor

The information in this site and in NeuLog data sheets is general. The information is subject to change without prior notice. Special requests can be provided for specific projects. Please contact us or any of our reps.

Welcome1 – Home

September 1, 2024Home PageElad Nahum

NeuLog Logger Sensors

Flexible. Simple. Fast. Forward Thinking.

Welcome to the unique world of logger sensors, plug-and-play concept that allows for an easy, precise, friendly and fun way of conducting classroom and field experiments.

Engage your students with hands-on experiments and bring science to life

Empower your students with the ability to observe, analyze, and understand data as it happens, solidifying complex concepts through practical application.

From physics to biology and chemistry, our sensors cover a wide range of scientific disciplines, encouraging interdisciplinary learning and exploration.

All the logger sensors are pre-set factory calibrated and immediately ready to use.

Bluetooth front – Home

August 28, 2024Home PageElad Nahum

Plug and Play – Just Science

Select any set of sensors for your experiment and connect it to any computer platform via single interface.

No calibration
No set up time
Single Bluetooth/USB module
Single wireless communication channel
Single 2300mAh rechargeable battery
A single intuitive free software for all computer platforms
Each sensor saves experiments data in its flash memory
Firmware is upgradable

NeuLog^R Neuron Logger Sensor is a device that consists of a single probe, a powerful 32-bit controller, a flash memory and a communication interface that allows connection in a chain to other logger-sensors and modules.

Sampling rate and sampled data are not affected by the number of the experiment sensors and wireless interferences.

Newton’s second law

NeuLog Solutions

Physics

Chemistry

Biology

Environmental Science

Robotics

Mechanics Bundle

USB module USB-200

Battery module BAT-202

Bluetooth module BLT-202

Wi-Fi Communication module WIFI-202

Panda Multi-Sensor PANDA-1

Graphic Display module VIEW-101

Digital Display module VIEW-200

RF Communication module RF-201

Voltage logger sensor NUL-201

Current logger sensor NUL-202

mA Current logger sensor NUL-248

Resistance logger sensor NUL-249

Charge logger sensor NUL-246

Magnetic Field logger sensor NUL-214

Temperature Logger Sensor NUL-203

Surface Temperature logger sensor NUL-233

Wide Range Temperature logger sensor NUL-234

Infrared Thermometer Logger Sensor NUL-235

Light logger sensor NUL-204

UVA logger sensor NUL-232

UVB logger sensor NUL-230

Oxygen logger sensor NUL-205

CO2 logger sensor NUL-260

pH logger sensor NUL-206

Conductivity logger sensor NUL-215

Colorimeter logger sensor NUL-219

Turbidity logger sensor NUL-231

Salinity logger sensor NUL-228

Drop Counter logger sensor NUL-223

Sound logger sensor NUL-212

Motion logger sensor NUL-213

Rotary Motion logger sensor NUL-226

Flow logger sensor NUL-224

Acceleration logger sensor NUL-227

Photo Gate logger sensor NUL-209

Pressure logger sensor NUL-210

Force logger sensor NUL-211

Force Plate logger sensor NUL-225

Hand Dynamometer Logger Sensor NUL-237

Relative Humidity logger sensor NUL-207

Dew Point logger sensor NUL-245

Soil Moisture logger sensor NUL-229

Barometer logger sensor NUL-221

Anemometer logger sensor NUL-242

GPS position logger sensor NUL-243

Heart Rate & Pulse logger sensor NUL-208

Spirometer logger sensor NUL-216

GSR logger sensor NUL-217

Electrocardiogram logger sensor NUL-218

Blood Pressure logger sensor NUL-222

Respiration Monitor Belt Logger Sensor NUL-236

Battery module BAT-202

Our Products

NeuLog Logger Sensors

Flexible. Simple. Fast. Forward Thinking.

Plug and Play – Just Science

What is NeuLog?

CO₂ logger sensor NUL-260