Miran MPM1 Two End Fish Eye Hinge Type Magnetostrictive Displacement Sensor
MPM1 Two End Fish Eye Hinge Type
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Overview of the MPM1 Two End Fish Eye Hinge Type Magnetostrictive Displacement Sensor:
In ferromagnetic materials, a change in the direction of magnetization will cause a change in the lattice spacing of the medium, thereby resulting in changes in the length and volume of the ferromagnetic material. That is: the magnetostrictive phenomenon, also known as the Widman effect, and its inverse effect is called the Villari effect.
The principle of the magnetostrictive displacement sensor is to utilize a strain pulse signal generated when two different magnetic fields intersect. Then, by calculating the time period required for this signal to be detected, the accurate position can be converted. One of the magnetic fields comes from the permanent magnets in the magnetic ring, and the other comes from the electronic components in the sensor electronics compartment that generate an excitation pulse. The excitation pulse travels along the waveguide wire made of magnetostrictive material in the sensor at the speed of sound. When it intersects with the permanent magnetic field in the magnetic ring, due to the magnetostriction phenomenon, the mechanical vibration generated by the waveguide wire forms a strain pulse. The strain pulse is quickly detected by the sensing circuit in the electronic compartment. The total time from the moment the excitation pulse is generated to the detection of the strain pulse is multiplied by a fixed sound speed, and we can accurately calculate the position change of the magnet. This process is continuous, so whenever the position of the magnetic ring changes, the new position will be quickly measured. Since the output signal is the actual position value, rather than a proportion or a signal that needs to be amplified and processed, there is no situation of signal drift or variation, and it is not necessary to perform regular recalibration like other sensors.
The magnetostrictive sensor is non-contact and never wears out. It has the advantages of high resolution, high precision, high stability, high reliability, fast response time, and long working life. The sensor does not need to be recalibrated or maintained regularly.
Technical parameters of the MPM1 Two End Fish Eye HingeType Magnetostrictive Displacement Sensor:
| Model | MPM1 two end fish eye hinge type magnetostrictive displacement sensor | Resolution | ≤0.01mm~0.001mm |
| Effective travel | 80mm-1000mm | Non-linear error | ≤±0.05%FS |
| Repeatability | ≤±0.005%FS | Power supply | DC24V |
| Delaying | ≤±0.001%FS | Temperature stability | ≤0.002%/℃ |
| Output signal | 4-20mA，0-20mA，0-5V，0-10V， RS485 (MODBUS-RTU)，CANopen,SSI,Start-stop | ||
| Measurement rod material | Default: 0CR18NI9 (304 stainless steel); Customizable: 316 stainless steel | ||
| Load capacity | Voltage signal output load > 4KΩ, current signal output load ≤ 500Q | ||
| Connection outlet | Waterproof cable connector | Working current | ＜60mA (varies with the range size) |
| Working temperature | -40℃~85℃ | Protection grade | IP67 |
| Limit protection | Maximum - 30VDC | Overpressure protection | Maximum 36VDC |
| Insulation resistance | >10MΩ | Dielectric strength | 500V |
Applications:
Pre-setting and feedback of the piston position of servo hydraulic cylinders, servo pneumatic cylinders, grinding machinery, casting and forging machine tools, other machinery such as gantry machines, position pre-setting and feedback of drilling machines, shield machines, coal mine machinery hydraulic cylinders, oil cylinder position pre-setting and feedback of steel mills (such as rolling mills), engineering lifting machinery oil cylinder position pre-setting and feedback, steel rolling machines and other steel plant machinery oil cylinder position pre-setting and feedback, blow bottle oil cylinder position pre-setting and feedback, injection molding machinery oil cylinder position pre-setting and feedback, railway and bridge adjustment, water level detection, water gate control, wood machinery position pre-setting and feedback, position pre-setting and feedback of oil cylinder liquid level, liquid level pre-setting and feedback of chemical containers, drinking water and sewage treatment systems, geodetic system, position pre-setting and feedback of gate opening degree, measurement of oil cylinder liquid level.
Installation dimension:
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