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Pressure sensors (also known as strain gauges) are devices that convert mechanical energy into electrical energy. The process occurs by detecting the pressure force that is exerted on the surface. This force is then converted into an electrical signal (current or voltage). The value of the electrical signal is relatively proportional to the pressure force.
Strain gauge sensor presure force of 50kg
The pressure sensor reduces its resistance when the force put to the square tip, increases. The sensor in the form of a rectangle with the side of 34 mm. For the operation...HX711 - amplifier for tensometers
Operational amplifier is designed to handle strain beams. The system is supplied with the voltage from 2.6 V to 5.5 V, communicates via a two-wire bus: the data line and a...Force sensor FSR-400 - 2kg round 5mm - Pololu 1695
The force sensor reduces its resistance when the force put to the round tip, accumulates. The sensor is round with a diameter of 5 mm.Force sensor FSR-402 - 2kg round 18mm - Pololu 1696
The pressure sensor reduces its resistance as the force applied to the round tip increases. Round sensor with a diameter of 18 mm.The conductive membrane for measuring the pressure of the force - Adafruit 1361
The membrane is made of a conductive material. The pressure, at any point, changes the resistance, which leads to the measurable change of the voltage in a simple way. The...Deflection sensor 73x6,3mm - SparkFun SEN-10264
During the bending, sensor increases its resistance. It can be used to detect hand movements, for example, crimping fists. Sensor length is 55 mm.Tensometric beam NA27 5kg (50N)
Strain-gauge beam operating in the range of up to 5 kg (approx. 50 N). The smallest version is used, for example, in kitchen scales, portable scales. The connecting cable...Pressure sensor cell 50kg - 4pcs.
Pressure sensor reduces its resistance when the force put to the square tip, increases. The sensor is in the form of a rectangle with sides of 33 mm. The set has 4 pieces,...Force sensor FSR-406 - 2kg square 38mm - Pololu 1645
Force sensor changes its resistance when the force applied to the square tip, increases. The sensor in the form of a rectangle with side of 38 mm.FlexiForce Pressure Sensor - 25lbs. (1" area) - SparkFun SEN-11207
Pressure sensor reduces its resistance when the force put to the round tip, increases. The round sensor with a diameter of 25.4 mm, the maximum pressure is 11 kg.Tensometric beam NA1 8kg (80N)
Strain-gauge beam operating in the range of up to 8 kg (80 N approx.). It is applied, for example, for kitchen scales, portable scales. The connecting cable has tips with the...Qwiic Scale - NAU7802 module for tensometric beam - SparkFun SEN-15242
The module is based on a NAU7802 system enabling the reading of data from a strain-gauge beams. By connecting the model to the microcontroller, you can read the change in...Grove - ADC converter for HX711 load cell sensors - Seeedstudio 101020712
Arduino compatible 24-bit ADC converter module allows to read values from pressure sensors. It has built-in amplifier with optional 32 dB, 64 dB and 128 dB gain. On the board...Stretch sensor - conductive rubber sheet - 200x200x1mm - Adafruit 5463
Tensile sensor in the form of a rubber sheet with dimensions of 200 x 200 x 1 mm. The principle of operation is very simple - the product increases its electrical resistance...Tensometric beam NA1 10kg (100N)
Strain gauge beam allowing to measure loads up to 10 kg . It is perfect for places where measurement accuracy is an absolute priority. The tightness level of the beam is IP66...Gravity - 1 kg (10 N) digital pressure sensor - HX711 - Build a scale kit - DFRobot KIT0176
A set of elements for self-assembly , which allow to make an electronic balance . The kit contains a digital pressure sensor, in the form of a strain gauge bar, detecting...Strain Beam Module - with 24-bit ADC NAU7802 - STEMMA QT / Qwiic - Adafruit 4538
The Adafruit module is equipped with the NAU7802 chip, which enables reading data from strain gauge beams . Includes ultra high resolution 24 bit differential ADC with...DFRobot Gravity - digital pressure sensor 1kg (10N)
Pressure sensor for Arduino works in the range of up to 1 kg. It is based on HX711, it has 24-bit analog-to-digital converter designed to scale weight and control applications...Force sensor round 15mm - short connector - Pololu 2728
Pressure sensor reduces its resistance when the force put to the round tip, increases. The s ensor with the short connector, round, with about 15mm diameter.Tensometric beam NA27 2kg (20N)
Strain-gauge beam operating in the range of up to 2 kg (20 N approx.). It is applied, for example, for kitchen scales, portable scales. The connecting cable has tips with the...Tensometric beam NA27 3kg (30N)
Strain gauge beam operating within the range up to 3 kg , (approx. 30 N). The smallest version is used e.g. for kitchen scales, portable scales. The connection cable has...Load Sensor Combinator (Ver. 1.1) - SparkFun BOB-13878
The module allows you to connect 4 load sensors - strain-gauge beams to one of the bridge via 4-wire cable. It finds application, for example, in the construction of the...DFRobot Capacitive Touch Kit - a touch kit for Arduino
A kit for self-assembly of the capacitive touch for Arduino. The set consists of three styles of touch sensors: round in the style of iPod; touch keyboard that supports...See also
The resistive pressure sensor (FSR) consists of two layers electrically insulated from each other. When a pressure force is applied to the outer layer in the form of a foil membrane, the insulating cover presses against the active layer, which is lined with electrically conductive measurement points. The greater the pressure force, the lower the contact resistance between the measurement points. The conductive layer is connected to a power source with auxiliary voltage, and the voltage signal, which reflects the applied pressure force, can be read, e.g. by Arduino, via an analog-to-digital converter and, based on the program algorithm, converted into the value of the weight exerted on the surface of the load cell. The measurement result can be displayed on the LCD display.
Flat FSR sensors are made of very delicate material and great care is required when installing them. At the prototyping stage, it is easiest to connect such a sensor to the breadboard directly, or using crocodile clips or an ARK connector with screw terminals. However, if you want to solder the pressure sensor to the PCB, you must ensure that the soldering tip and the soldering surface are clean, because even within a few seconds the layers of the sensor may melt, causing permanent damage.
The compensating strain gauge is used to measure the pressure force taking into account the influence of external factors, primarily air humidity, temperature and atmospheric pressure.
The correct operation of the strain gauge sensor can be checked by supplying it with the appropriate voltage at nominal load and reading the output voltage value with an electric meter .
The resistance strain gauge uses the phenomenon of changing electrical resistance when changing the dimensions of the resistance material . Such devices are used, for example, to measure stress or pressure, for example in loading systems.