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quartz, free-field, icp® blast pressure pencil probe, 50 psi, 100 mv/psi, 4-pin connector, with two outputs for t.o.a

ICP BLAST PRESSURE SENSOR (CA CONNECTOR)

Model 137B25

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Quartz, free-field, ICP® blast pressure pencil probe, 50 psi, 100 mV/psi, 4-pin connector, with two outputs for T.O.A

This is a 2-sensor pencil probe that provides time of arrival from which shock speed may be calculated and the pressure time wave form for total impulse measurement, all in one sensor.

Measurement Range: 50 psi (345 kPa)
Sensitivity: (±15%)100 mV/psi (14.5 mV/kPa)
Resonant Frequency: >=400 kHz
Electrical Connector: 4-Pin
Weight: 16.1 oz (456 gm)

Specification Notes

[1] Zero-based, least-squares, straight line method.
[2] Typical.
[3] For +10 volt output, minimum 26 VDC supply voltage required. Negative 10 volt output may be limited by output bias.
[4] Two identically spec'd elements spaced 10cm apart - see drawing #65310 for details. Individual calibration certs supplied for each channel.
[2] Typical.
[5] See PCB Declaration of Conformance PS023 for details.

	English:	SI:
Performance
Measurement Range (for ±5V output)	50 psi	345 kPa
Useful Overrange (for ± 10V output)	100 psi	690 kPa	[3]
Sensitivity (±15 %)	100 mV/psi	14.5 mV/kPa	[4]
Maximum Pressure	1 kpsi	6895 kPa
Resolution	10 mpsi	0.069 kPa	[2]
Resonant Frequency	≥400 kHz	≥400 kHz
Rise Time (Incident)	≤6.5 µ sec	≤6.5 µ sec
Non-Linearity	≤1.0 % FS	≤1.0 % FS	[1]
Environmental
Temperature Range (Operating)	-100 to +275 °F	-73 to +135 °C
Temperature Coefficient of Sensitivity	≤0.05 %/°F	≤0.090 %/°C
Electrical
Discharge Time Constant (at room temp)	≥0.3 sec	≥0.3 sec
Excitation Voltage	22 to 30 VDC	22 to 30 VDC
Constant Current Excitation	2 to 20 mA	2 to 20 mA
Output Impedance	≤100 Ohm	≤100 Ohm
Output Bias Voltage	8 to 15 VDC	8 to 15 VDC
Physical
Sensing Geometry	Compression	Compression
Sensing Element	Quartz	Quartz
Housing Material	Aluminum	Aluminum
Diaphragm	Invar	Invar
Sealing	Epoxy	Epoxy
Electrical Connector	4-Pin	4-Pin
Weight	16.1 oz	456 gm	[2]