Introduction: Overview of Hydraulic Pressure Sensor: Hydraulic pressure sensor is a commonly used detection instrument, which is used in production automation, aerospace, military, petrochemical, oil well, power, ship, machine tool, pipeline air supply and other fields. Today we will mainly introduce
Overview of hydraulic pressure sensors:
Hydraulic pressure sensor is a commonly used detection instrument, which is used in production automation, aerospace, military, petrochemical, oil well, power, ship, machine tool, pipeline air supply and other fields. Today we
Mainly to introduce the working principle and characteristic parameters of hydraulic pressure sensors.
Principle of hydraulic pressure sensor
The working principle of hydraulic pressure sensors is that pressure directly acts on the diaphragm of the sensor, causing the diaphragm to produce a micro displacement proportional to the medium pressure, resulting in a change in the resistance of the sensor, and using electronic wires
Detect this change in the road and convert it into a standard signal corresponding to this pressure.
Characteristic parameters of hydraulic pressure sensor
1. Sensor: A device or apparatus that can sense a specified measured object and convert it into a usable output signal according to a certain pattern. It usually consists of sensitive components and conversion components.
① Sensitive components refer to the parts of a sensor that can directly (or respond to) be measured.
② Conversion element refers to the part of a sensor that can respond sensitively and convert the measured signal into an electrical signal that is transmitted and/or measured.
③ When the output is a specified standard signal, it is called a transmitter.
2. Measurement range: The range of measured values within the allowable error limit.
3. Range: The algebraic difference between the upper and lower limits of the measurement range.
4. * Degree: The degree of consistency between the measured result and the true value.
5. Repeatability: The degree of agreement between the results obtained from multiple consecutive measurements of the same measured quantity under all of the following conditions:
6. Resolution: The small amount of variation that the sensor may detect within the specified measurement range circle.
7. Threshold: The small amount of change that can cause a measurable change in the output of the sensor.
8. Zero position: A state where the output * value is small, such as a balanced state.
9. Motivation: External energy (voltage or current) applied to ensure the normal operation of the sensor.
10. Big incentive: The maximum value of the excitation voltage or current that can be applied to the sensor under indoor conditions.
Hydraulic pressure sensor indicators:
Measurement range: 0.3-100m (optional by the user)
Accuracy: 0.2, 0.5, 1.0 levels
Working temperature: -20~80 ℃
Output signal: 2-wire 4-20mADC
Power supply voltage: standard 24VDC (12-36VDC)
Non sensitive area: ≤± 1.0% FS
Load capacity: 0-600 Ω
Relative temperature: ≤ 85%
Protection level: IP68
Explosion proof mark: Exia Ⅱ CT4-6