概述

The Dytran model 3220E is a low profile, high frequency ring shaped IEPE accelerometer with a 10 mV/g sensitivity and an overall weight of just 2.7 grams.

Featuring a quartz shear sensing element encased in a lightweight titanium housing, electrical connection for the Dytran model 3220E is achieved via a specially designed coaxial glass-to-metal sealed 5-44 connector, which can be *itioned in any desired radial direction. The model 3220E also features a miniature thru hole mounting configuration, allowing the sensor to be turned 360° prior to securing for ease of installation. Units are hermetically sealed for reliable operation in high humidity and dirty environments, as well as base isolated to *oid EMI/ground loop interference.

特性

1. 10 mV/g sensitivity

2. 500g range

3. 1 to 5,000 Hz (±5%)

4. 5-44 radial connector

5. Ø.09-inch (2.36-millimeter) thru hole mount

6. 2.7 grams

7. Titanium

8. Hermetic

9. Base isolated

10. 360° cable orientation

11. IEPE

应用

1. Environmental Stress Screening (ESS)

2. Vibration co*ol

3. General pur*e vibration measurements in *ce c*trained environments

参数

WEIGHT 2.7 Grams

SIZE, DIA X HEIGHT (SEE DWG 127-3220E) .41 X .25 IN

MOUNTING PROVISION THRU HOLE FOR #2 MOUNTING SCREW

MOUNTING SCREW, INSULATED (SUPPLIED) 2-56 X .437 LONG SS

CONNECTOR, RADIALLY MOUNTED 5-44 COAXIAL

MATERIAL, BASE, CAP & CONNECTOR TITANIUM ALLOY

ELEMENT TYPE QUARTZ, PLANAR SHEAR

PERFORMANCE

SENSITIVITY, ± 10% [1] 10 mV/G

RANGE F.S. FOR ± 5 VOLTS OUTPUT ± 500 G's

FREQUENCY RESP*E, ± 5% 1 to 5,000 Hz

± 15% .66 to 10,000 Hz

NATURAL FREQUENCY, MOUNTED. >33 kHz

LINEARITY 1 %FS

TRANSVERSE SENSITIVITY, MAX. 5 %

STRAIN SENSITIVITY .03 G’s/ @ 250 

RESOLUTION (EQUIVALENT ELECTRICAL NOISE) 0.007 G’s RMS

ENVIRONMENTAL

MAXIMUM VIBRATI*HOCK 1500/2000 ± G's/G's PEAK

TEMPERATURE RANGE -60 to +250 oF

SEAL, HERMETIC  Glass-to-metal and TIG welded

COEFFICIENT THERMAL SENSITIVITY %/ F

ELECTRICAL

SUPPLY CURRENT/COMPLIANCE VOLTAGE RANGE [3] 2 to 20/+18 to +30 m*olts

OUTPUT IMPEDANCE, TYP. 100 Ohms

DISCHARGE TIME C*TANT 0.8 to 2.0 Sec

OUTPUT BIAS VOLTAGE 9 to 11.5 VDC

OUTPUT SIGNAL POLARITY FOR ACCELERATION Positive

ELECTRICAL ISOLATION, CASE GROUND TO MOUNTING SURFACE 10 Gigaohm*in.