Novotekhnik displacement sensor T-100 series original product

Novotekhnik displacement sensor T-100 series original product

Novotech displacement sensor, also known as linear sensor, is a linear device belonging to metal induction. The function of the sensor is to convert various measured physical quantities into electrical quantities. In the production process, displacement measurement is generally divided into two types: measuring physical dimensions and measuring mechanical displacement. According to the different forms of transformation of the measured variable, displacement sensors can be divided into analog and digital types. Simulation can be divided into two types: physical type and structural type. The commonly used displacement sensors are mostly of the analog structural type, including potentiometer displacement sensors, inductive displacement sensors, self-tuning machines, capacitive displacement sensors, eddy current displacement sensors, Hall displacement sensors, etc. An important advantage of digital displacement sensors is that they facilitate the direct transmission of signals into computer systems. This type of sensor is developing rapidly and its applications are becoming increasingly widespread.

Working principle of novotechnik displacement sensor

Potentiometer type displacement sensor converts mechanical displacement into resistance or voltage output that is linearly or functionally related to it through potentiometer components. Both ordinary linear potentiometers and circular potentiometers can be used as linear displacement and angular displacement sensors, respectively. However, potentiometers designed for measuring displacement require a definite relationship between displacement changes and resistance changes. The movable electric brush of the potentiometer displacement sensor is connected to the measured object.

The displacement of an object causes a change in resistance at the moving end of the potentiometer. The change in resistance reflects the magnitude of displacement, and whether the resistance increases or decreases indicates the direction of displacement. Usually, a power supply voltage is applied to the potentiometer to convert resistance changes into voltage output. The output characteristics of a wire wound potentiometer also exhibit a stepped shape due to the fact that the resistance changes step by step with the turn resistance when the electric brush moves. If this displacement sensor is used as a displacement feedback element in a servo system, excessive step voltage can cause system oscillation. Therefore, in the production of potentiometers, the resistance value of each turn should be minimized as much as possible. Another major drawback of potentiometer sensors is their susceptibility to wear and tear. Its advantages are: simple structure, large output signal, easy to use, and low price.

The main classification of Novotech displacement sensors

According to the mode of exercise

Linear displacement sensor:

The function of a linear displacement sensor is to convert the linear mechanical displacement into an electrical signal. To achieve this effect, the variable resistor slider is usually placed at the fixed position of the sensor, and different resistance values are measured by the displacement of the slider on the slider. The sensor slider is connected to a steady-state DC voltage, allowing small currents of microamperes to flow. The voltage between the slider and the starting end is proportional to the length of the slider movement. Using sensors as voltage dividers can minimize the requirement for accuracy in the total resistance of the slide rail, as changes in resistance caused by temperature fluctuations will not affect the measurement results.

Angle displacement sensor:

Angle displacement sensor applied to obstacle handling: Using angle sensors to control your wheels can indirectly detect obstacles. The principle is very simple: if the motor angle sensor is operating and the gear is not rotating, it means that your machine has been blocked by an obstacle. This technology is very simple to use and very effective; The requirement is that the moving wheels cannot slip on the floor (or slip too many times), otherwise you will not be able to detect obstacles. A spinning gear connected to the motor can avoid this problem. This wheel is not driven by the motor but by the movement of the device: if the idler stops during the rotation of the driving wheel, it means you have encountered an obstacle.

based on material

Hall displacement sensor: Its measurement principle is to keep the excitation current of the Hall element (see semiconductor magnetic sensor) constant and move it in a gradient uniform magnetic field, so that the displacement moved is proportional to the output Hall potential. The greater the magnetic field gradient, the higher the sensitivity; The more uniform the gradient change, the closer the relationship between Hall potential and displacement is to linear. Figure 2 shows three magnetic systems that generate gradient magnetic fields: system a has a narrow linear range, and when the displacement Z=0, the Hall potential ≠ 0; When Z<2 millimeters, the B system has good linearity, and when Z=0, the Hall potential is 0; The sensitivity of the C system is high, with a measurement range of less than 1 millimeter. In Figure 2, N and S represent positive and negative magnetic poles, respectively. The Hall displacement sensor has low inertia, high frequency response, reliable operation, and long service life, so it is commonly used in situations where various non electric quantities are converted into displacement before measurement.

Photoelectric displacement sensor: It measures the displacement or geometric dimensions of the object based on how much light flux is blocked by the object being measured. The characteristic is that it belongs to non-contact measurement and can be continuously measured. Optoelectronic displacement sensors are commonly used for continuous measurement of wire diameter or as edge position sensors in strip edge position control systems.

Novotekhnik displacement sensor T-100 series original product

部分型号： TR100； TLH-275； TLH-3500； SP2841A502； LWG700； P4701A502； LWG100； P6501A102； SP2831A502； LWH-275； LWH-0110； TRS100； SP2841S0002； LWH-0500； TLH-3000； P2701A502； LWH-0450； P2501A102； P4401A502； TLH-500； P4401A202； TLH-360； P2201A502； TLH-150； TRS50； LWH-250； P4401A103； P4501A502； LWH-200； P6701A502； TLH-130； IP6501A502； TLH-750； P6501A202； TLH-400； LWG150； TLH-900； SP2801S0002； P2501A502； TLH-175； TR-0075； LS10150； LWG-0700； TRS-0050； TLH-0130； LWH-0375； TRS-0075； TWH-900； novotechnik； TLH-0360； LWG-0300； T-0050； LWG-0450； P4101A103； P4501A102； TLH-2375； LWH-450； P2501A202； LWH-75