German Mawomatic sensor Mawomatic model Mawomatic price

Mawomatic sensor pressure sensor for level measurement. The static pressure submersible level transmitter (level gauge) is based on the principle that the static pressure of the measured liquid is proportional to its height. It uses advanced foreign isolated diffused silicon sensitive elements or ceramic capacitive pressure sensitive sensors to convert static pressure into electrical signals, which are then converted into standard electrical signals (generally 4～20mA/15VDC) after temperature compensation and linear correction.

Mawomatic sensor principle

Optical measurement and control systems made based on different principles of luminous flux acting on photoelectric elements are diverse. According to the nature of the output of the photoelectric element (optical measurement and control system), they can be divided into two categories: analog photoelectric sensors and pulse (switching) photoelectric sensors. Analog photoelectric sensors convert the measured quantity into a continuously changing photocurrent, which has a single-value relationship with the measured quantity. Analog photoelectric sensors can be divided into three major categories according to the method of measuring the target object: transmission (absorption) type, diffuse reflection type, and light-blocking (beam obstruction) type. The so-called transmission type means that the measured object is placed in the optical path, the light energy emitted by the constant light source passes through the measured object, and after being partially absorbed, the transmitted light is projected onto the photoelectric element; the so-called diffuse reflection type means that the light emitted by the constant light source is projected onto the measured object, and then reflected from the surface of the measured object onto the photoelectric element; the so-called light-blocking type means that when the luminous flux emitted by the light source is partially blocked by the measured object, the luminous flux projected onto the photoelectric element changes, and the degree of change is related to the position of the measured object in the optical path.

Mawomatic sensor features

1) Long detection distance: If a detection distance of more than 10m is maintained in the through-beam type, long-distance detection can be achieved, which is impossible with other detection methods (magnetic, ultrasonic, etc.). 2) Few restrictions on detected objects: Since the detection principle is based on light blocking and reflection caused by the detected object, unlike proximity sensors that limit detected objects to metals, it can detect almost all objects such as glass, plastic, wood, and liquids. 3) Short response time: Light itself is high-speed, and the sensor circuit is composed of electronic components, so there is no mechanical working time, resulting in a very short response time. 4) High resolution: High resolution can be achieved by concentrating the emitted light beam into a small spot through advanced design technology, or by constructing a special light-receiving optical system. It can also detect tiny objects and perform high-precision position detection. 5) Non-contact detection can be achieved: Detection can be performed without mechanical contact with the detected object, so neither the detected object nor the sensor will be damaged. Therefore, the sensor can be used for a long time. 6) Color discrimination can be achieved: The reflectance and absorptance of light formed by the detected object vary depending on the wavelength of the incident light and the color combination of the detected object. Using this property, the color of the detected object can be detected. 7) Easy to adjust: In types that project visible light, the emitted light beam is visible to the eye, making it easy to adjust the position of the detected object.

Mawomatic sensor applications

Photoelectric sensors using photoelectric elements as sensitive elements are diverse and widely used. According to the nature of the output of the photoelectric sensor, they can be divided into two categories: (1) Photoelectric measuring instruments that convert the measured quantity into a continuously changing photocurrent can be used to measure physical quantities such as light intensity, object temperature, light transmission capacity, displacement, and surface status. For example: illuminance meters for measuring light intensity, photoelectric pyrometers, photoelectric colorimeters and turbidimeters, photoelectric alarms for fire prevention, and automatic inspection devices and instruments for checking the diameter, length, ellipticity, and surface roughness of processed parts, all of which use photoelectric elements as sensitive elements. Semiconductor photoelectric elements are not only widely used in civil industrial fields, but also have an important position in military applications. For example, lead sulfide photoresistors can be made into infrared night vision devices, infrared cameras, and infrared navigation systems; (2) Converting the measured quantity into a continuously changing photocurrent. Various photoelectric automatic devices are made using the characteristic of photoelectric elements to output "yes" or "no" electrical signals when exposed to light or no light. Photoelectric elements are used as switching photoelectric conversion elements. For example, photoelectric input devices for electronic computers, switching temperature regulation devices, and digital photoelectric tachometers for speed measurement.

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