BMP180 vs ASDX100A24R-DO
| Part Number |
|
|
| Category | Pressure Sensors, Transducers | Pressure Sensors, Transducers |
| Manufacturer | Bosch Sensortec | Honeywell Sensing and Productivity Solutions |
| Description | SENSOR PRESSURE ABS | SENSOR PRESS 100PSIA DIGITAL |
| Package | 7-VLGA | 8-DIP Module |
| Series | - | ASDX |
| Voltage - Supply | 1.62 V ~ 3.6 V | 4.75 V ~ 5.25 V |
| Operating Temperature | -40°C ~ 85°C | -20°C ~ 105°C |
| Package / Case | 7-VLGA | 8-DIP Module |
| Supplier Device Package | 7-LGA | - |
| Output | 16 ~ 19 b | 12 b |
| Accuracy | ±2% | ±2% |
| Output Type | I²C | I²C |
| Termination Style | PCB | PCB |
| Pressure Type | Absolute | Absolute |
| Operating Pressure | 4.35 PSI ~ 15.95 PSI (30 kPa ~ 110 kPa) | 100 PSI (689.48 kPa) |
| Port Style | No Port | Barbless |
| Maximum Pressure | 145.04 PSI (1000 kPa) | 150 PSI (1034.21 kPa) |
| Features | - | Temperature Compensated |
| Port Size | - | Male - 0.09" (2.29mm) Tube |
-
1. What is a pressure sensor?
A pressure sensor is a device that can convert a pressure signal into an electrical signal and is widely used in various industrial automatic control environments. It usually consists of a pressure sensitive element and a signal processing unit, which can sense the pressure signal and convert it into a usable output electrical signal according to a certain rule.
Definition and function
The basic concept of a pressure sensor is to convert a pressure signal into an electrical signal for subsequent signal processing and control. The working principle of a pressure sensor is mainly based on physical phenomena such as piezoelectric effect, strain effect and capacitance effect. The piezoelectric effect refers to the fact that certain materials generate electric charge when subjected to pressure; the strain effect refers to the deformation of the material when subjected to pressure, thereby changing the resistance value; the capacitance effect refers to the change in capacitance value caused by pressure change.
Classification
According to the working principle and structural characteristics, pressure sensors can be divided into the following categories:
Piezoresistive pressure sensor: based on the strain effect, usually made of semiconductor materials.
Piezoelectric pressure sensor: based on the piezoelectric effect, usually made of crystal or ceramic materials.
Capacitive pressure sensor: based on the capacitance effect, composed of two conductors and an insulating medium.
Fiber optic pressure sensor: uses the light transmission characteristics of optical fiber to convert pressure signals into optical signals. -
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 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.
-
4. What is the difference between sensors and actuators?
The main difference between sensors and actuators lies in their functions, design principles and application scenarios.
Function and design principle
Sensor: A sensor is a device that converts various physical quantities (such as temperature, pressure, light intensity, etc.) into easy-to-process electrical signals. Its main function is to detect and collect physical quantities in the environment, and convert these physical quantities into electrical signal output for further processing and analysis.
Actuator: An actuator is a device that converts electrical signals, air pressure, hydraulic pressure and other energies into physical motion. Its main function is to perform corresponding action control according to the received electrical signal, such as controlling the movement of the robot, adjusting the cutting of the machine tool, etc.
Application scenarios
Sensors: Sensors are usually used in areas that require monitoring environmental information, controlling automation equipment, adjusting motion control systems, such as smart homes, aircraft, robots, etc.
Actuators: Actuators are used to adjust control systems, convert energy, complete mechanical work, etc., such as hydraulic pumps driven by electric motors, pneumatic control valves, etc.
