20 CMH2O-D1-4V-MINI

Series:	MAMP
Part Status:	Active
Pressure Type:	Differential
Operating Pressure:	-0.003 PSI ~ 0.28 PSI (-0.02 kPa ~ 1.96 kPa)
Output Type:	Analog Voltage
Output:	0.3 V ~ 4.5 V
Accuracy:	±0.25%
Voltage - Supply:	4.5 V ~ 5.5 V
Port Size:	Male - 0.08" (2.00mm) Tube, Dual
Port Style:	Barbless
Features:	Amplified Output, Temperature Compensated
Termination Style:	PCB
Maximum Pressure:	1.42 PSI (9.79 kPa)
Operating Temperature:	-25°C ~ 85°C
Package / Case:	4-SIP Module
Supplier Device Package:	--

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Introduction

The CMH2O-D1-4V-MINI is a high-precision pressure transducer used for measuring pressure, analyzing pressure changes, and displaying the measured data in engineering units. This transducer primarily operates on the principle of variable capacitance. Its operation is based on the sensing element being deformed or displaced when a pressure is applied or a change in pressure occurs. The transducer then measures the displacement directly or through a sensor converter to scale the pressure change into an engineering unit such as psi, bar, or kg/cm2.

Application Fields

The CMH2O-D1-4V-MINI has a wide range of applications in various industries and fields, such as oil and gas, medical, automotive, and aerospace. In the oil and gas industry, this transducer is often used for gas pressure measurement and control, process monitoring, and fuel level measurement.In the medical field, the CMH2O-D1-4V-MINI is commonly used for monitoring and measuring blood pressure, ventilation pressure, and respiratory pressure. In the automotive industry, this transducer is used for monitoring tire pressure, detecting boost pressure of engines, and for controlling fuel injectors. In the aerospace industry, it is often used in aircrafts for measuring pressure in various systems.

Working Principle

The CMH2O-D1-4V-MINI operates on the principle of variable capacitance. It consists of a sensing element which is made of an elastomeric material that deforms or displaces when a pressure is applied or a change in pressure occurs. The transducer measures the displacement directly or through a sensor converter. This is done by measuring the change in capacitance of the transducer’s sensing element as it is subjected to external pressure.The transducer uses a direct capacitance-to-digital converter to convert the changed capacitance to an electrical signal. This signal is then amplified and filtered to remove any DC and low frequency signals and scaled to the desired engineering units. This output is then sent to a data acquisition system for further analysis.

Conclusion

The CMH2O-D1-4V-MINI is a high-precision pressure transducer used for measuring pressure, analyzing pressure changes, and displaying the measured data in engineering units. It operates on the principle of variable capacitance and is used for applications in various industries and fields, such as oil and gas, medical, automotive, and aerospace. The transducer measures the displacement directly or through a sensor converter to scale the pressure change into an engineering unit such as psi, bar, or kg/cm2.

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