What is high-speed measurement in pressure measurement? Dynamic characteristics of sensors.

KELLER Pressure Japan 日本支社

Many applications today require not only accurate measurements but also fast measurements. In this context, the dynamic behavior of sensors becomes particularly important in addition to measurement accuracy. While the limiting frequency of electronic circuits, sampling rates, or similar parameters are often recognized as decisive factors, this is actually just one aspect, and it is necessary to consider the entire sensor system. How much speed is required from the sensor? What are the factors that truly affect the dynamic characteristics of the sensor? I will explain why not only electronic circuits but the entire sensor design is important. I will introduce typical application examples that require millisecond-level speeds, provide findings from test results, and assist you in selecting the optimal sensor according to your needs. For more details, please refer to the related links below!

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Keller Company Ultra High-Speed Pressure Sensor M5HB
Ideal for measuring pulsations and unsteady behavior with a bandwidth of 50 kHz, temperature-resistant up to 180°C, built-in amplifier (0-10V output) high-precision pressure sensor.

Pressure range: 0 to 300 kPa to 0 to 3 MPa Accuracy: ± 0.1 %FS Overall accuracy: ±0.5%FS @ -20 to 125 °C Output: 0 to 10V Temperature range: -40 to 180 °C
Keller Company Ultra High-Speed Pressure Sensor M5
Pressure sensor optimized for measuring pulsations and unsteady behavior at a bandwidth of 50 kHz, with a temperature resistance of up to 180°C.

Pressure range: 0 to 300 kPa to 0 to 3 MPa Accuracy: ± 0.3 %FS Pressure connection: M5 x 0.5 thread Dimensions: ⌀ 6.2 mm x 40 mm Temperature range: -50 to 180 °C
Keller Company Ultra High-Speed/High-Temperature Pressure Sensor M8coolHB
Media temperature up to 1000°C compatible, optimal for measuring pulsations and unsteady behavior with a bandwidth of 50kHz, built-in amplifier (0-10V output) high-precision pressure sensor.

Pressure range: 0 to 300 kPa to 0 to 3 MPa Accuracy: ± 0.1 %FS Overall accuracy: ± 1.0 %FS @ -40 to 180℃ Output: 0 to 10 V Temperature range: -50 to 1000℃
Keller Company High-Speed Pressure Sensor Series 21PHB
High-speed pressure sensor optimal for measuring pulsations and unsteady behavior.

Pressure range: 0 to 1 MPa to 0 to 60 MPa Overall accuracy: ± 0.5 %FS @ -10 to 80 °C Interface: 0 to 10 V Features: Bandwidth 20 kHz