BMD040-3MP vs P51-300-A-N-M12-4.5OV
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| Category | Pressure Sensors, Transducers | Pressure Sensors, Transducers |
| Manufacturer | Bosch Sensortec | SSI Technologies Inc |
| Description | ABS. PRESSURE SENSOR ANLG INDUST | SENSOR 300PSI 1.2-20UNF-2A 4.5V |
| Package | TO-233AA, TO-8-3 Metal Can | Cylinder |
| Series | - | MediaSensor? |
| Features | Amplified Output, Temperature Compensated | Amplified Output, Temperature Compensated |
| Voltage - Supply | 4.75 V ~ 5.25 V | 5V |
| Operating Temperature | -30°C ~ 100°C | -40°C ~ 105°C |
| Package / Case | TO-233AA, TO-8-3 Metal Can | Cylinder |
| Supplier Device Package | TO-8 | - |
| Output | -1 mA ~ 0.5 mA | 0.5 V ~ 4.5 V |
| Accuracy | ±2% | ±0.5% |
| Output Type | Analog Current | Analog Voltage |
| Termination Style | Surface Mount | M12, 4 Pin |
| Pressure Type | Absolute | Absolute |
| Operating Pressure | 7.25 PSI ~ 435.11 PSI (50 kPa ~ 3000 kPa) | 300 PSI (2068.43 kPa) |
| Port Style | Barbless | Threaded |
| Maximum Pressure | 652.67 PSI (4500 kPa) | - |
| Port Size | Male - 0.59" (1.5mm) Tube | - |
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1. Application field
Sensor: Mainly used for industrial process control and monitoring, equipment control and monitoring in the fields of automobiles, machinery, electronics, medical equipment, aerospace, etc., as well as environmental monitoring and weather forecasting.
Transducers: Mainly used in exploration and production processes in the fields of ocean, petroleum, aviation, energy, etc., engineering measurement and control fields (such as monitoring and control of structures such as buildings, bridges and tunnels), scientific research fields (such as physics, chemistry, biology, etc.), and music and art fields (such as electronic musical instruments and sound amplifiers). -
2. What are the three types of pressure sensors?
There are three main types of pressure sensors:
Gage pressure sensor: This sensor is used to measure pressure relative to atmospheric pressure. It is usually used to measure the pressure of liquids or gases and convert pressure changes into electrical signal output.
Differential pressure sensor: The differential pressure sensor uses two different pressure ports to measure the pressure difference relative to each other. It is often used to measure the pressure difference between two different locations, such as measuring flow in a fluid system.
Absolute pressure sensor: Absolute pressure sensor is used to measure absolute pressure, that is, pressure relative to a vacuum. It is not affected by atmospheric pressure and is often used for high-precision measurements and applications that require stable pressure readings.
In addition, there are other types of pressure sensors, such as piezoresistive, capacitive, piezoelectric, strain gauge, fiber optic pressure sensor, and magnetostrictive. These sensors have different characteristics and application fields.
For example:
Piezoresistive pressure sensor: simple structure, small size, low cost, high sensitivity and accuracy, widely used in consumer electronics, medical equipment and industrial control.
Capacitive pressure sensor: has good dynamic response characteristics and stability, suitable for aerospace, automobile manufacturing and precision instruments.
Piezoelectric pressure sensor: does not require external power supply, has extremely high sensitivity and fast response time, and is often used for high-frequency vibration measurement and dynamic pressure monitoring.
Strain pressure sensor: has a wide measurement range, high accuracy and good stability, and is widely used in industrial automation, engineering machinery and aerospace.
Fiber optic pressure sensor: has strong anti-electromagnetic interference ability, corrosion resistance, high temperature resistance, suitable for pressure measurement in harsh environments.
Magnetostrictive pressure sensor: has high accuracy, fast response and good reliability, and is often used in high-precision pressure measurement and control systems. -
3. What sensors can be used to measure pressure?
Sensors that can be used to measure pressure mainly include pressure sensors. Pressure sensors can sense pressure signals and convert them into usable electrical signals for output. This type of sensor is usually composed of a pressure sensitive element and a signal processing unit, and is widely used in various industrial automatic control environments, such as water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military industry, petrochemicals, oil wells, electricity, ships, machine tools, pipelines and other fields.
Application fields of pressure sensors
Industrial field: In industrial production, pressure sensors are used to monitor and control the operating status of various equipment, such as boilers, pipelines, reactors, etc., to ensure production efficiency and product quality, and avoid equipment damage and production accidents.
Medical field: Pressure sensors can accurately measure physiological parameters such as blood pressure and heart rate of patients, and are used in equipment such as ventilators and infusion pumps to ensure patient safety and comfort.
Environmental protection field: Pressure sensors are used in sewage treatment plants, meteorological monitoring, etc. to monitor pipeline pressure conditions, avoid environmental pollution and waste of resources, and provide accurate data for weather forecasts.
Aerospace field: Pressure sensors monitor the cylinder pressure, engine intake pressure and atmospheric pressure of aircraft and spacecraft to ensure the safe and stable operation of aircraft and spacecraft.
What are the four types of pressure sensors?
There are four main types of pressure sensors:
Strain pressure sensor: Strain pressure sensors measure pressure mainly by measuring the strain of elastic elements. Depending on the material, strain elements are divided into metals and semiconductors. When conductors and semiconductor materials are mechanically deformed, their resistance values change.
Piezo-resistive pressure sensor: Piezoresistive pressure sensors are made of piezoresistive effect of single-crystal silicon materials and integrated circuits. When single-crystal silicon materials are subjected to force, the resistivity changes, and an electrical signal proportional to the force change is output through the measuring circuit.
Capacitive pressure sensor: Capacitive pressure sensors use changes in capacitance to measure pressure. When the electrode senses pressure deformation, the capacitance changes, forming an electrical signal output.
Piezoelectric pressure sensor: Piezoelectric pressure sensors use the piezoelectric effect to convert pressure into electrical quantity for measurement. This sensor does not require an external power supply, and directly reflects the pressure by measuring the amount of charge generated, with extremely high sensitivity and fast response time.
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4. What is the difference between a transducer and a sensor?
Sensors and transducers are two different concepts. A sensor is a device that converts non-electrical signals into electrical signals, while a transducer is a device that converts one form of energy into another form.
1. Definition of sensors and transducers
Both sensors and transducers are devices that measure physical quantities.
A sensor is a device that converts non-electrical signals into electrical signals, and is usually used to convert physical quantities into electrical signals, such as temperature, pressure, humidity, light intensity, etc. Sensors are widely used in industry, medical care, environmental monitoring and other fields.
A transducer is a device that converts one form of energy into another. A transducer can convert any form of physical quantity (such as pressure, force, torque, displacement, sound, light, heat, etc.) into electrical signals or other forms of energy output. The application field of transducers is also very wide, and they are often used to detect, control and measure various industrial processes.
2. The difference between sensors and transducers
The main difference between sensors and transducers is which signal they convert into which signal. Sensors mainly convert non-electrical signals into electrical signals, while transducers can convert any form of signal into other forms of energy, such as electrical signals or mechanical motion.
In addition, the application fields of sensors and transducers are also different. Sensors are mainly used to detect, monitor and measure various physical quantities, such as temperature, pressure, humidity, light intensity, etc.; while transducers are widely used to control, measure and detect various industrial processes, such as flow, speed, force, pressure and displacement, etc.
3. Application fields of sensors and transducers
Sensors and transducers have a wide range of applications. Sensors are usually used in the following fields:
1. Industrial process control and monitoring.
2. Equipment control and monitoring in the fields of automobiles, machinery, electronics, medical equipment, aerospace, etc.
3. Environmental monitoring and weather forecasting.
4. Home automation and smart home fields.
Transducers are mainly used in the following fields:
1. Exploration and production processes in the fields of ocean, petroleum, aviation, energy, etc.
2. Engineering measurement and control fields, such as monitoring and control of structures such as buildings, bridges and tunnels.
3. Scientific research fields, such as physics, chemistry, biology, etc.
4. Music and art fields, such as electronic musical instruments and sound amplifiers, etc.
