The Model 383 Piezoelectric Accelerometer from Columbia Research Laboratories has been specifically developed to quantify vibration phenomena and high amplitude shock precisely. The high resonant frequency of 80 kHz leads to the least output distortion as a result of ringing while quantifying impact transients with durations as low as 50 µs.
Model 383 involves a sophisticated seismic system in which the sensing crystal is nearly constrained completely and free from zero shift after high energy effects. This accelerometer has not been affected by impact transverse components and has the ability to measure up to its rated value of 20,000 g and even to 50,000 g with a steady operation.
Its robust construction guarantees high-performance, long life, repeatability and stability. Internal electrical isolation reduces ground loop issues caused due to noise currents.
Image Credit: Columbia Research Laboratories
- High Shock to 20,000 G
- Low base strain sensitivity
- Isolated electrically
- Availability of high resonant frequency
- Sensitivity provided up to 0.5 pC/g
Specifications
Source: Columbia Research Laboratories
| Transfer / Electrical |
383 |
| Charge Sensitivity1 |
0.5 pC/g Nominal
0.95 pC/g Maximum |
| Capacitance |
325 +/-100 pF |
| Frequency Linearity2 |
+/-5% Max
2 Hz To 15,000 Hz |
| Mounted Resonant Frequency |
80 KHz, Min. |
| Transverse Sensitivity |
5% Max |
| Amplitude Linearity |
+/-1.0% (BFSL) |
| Insulation Resistance |
10,000 M Ohm Min, 50 VDC Test |
| Isolation Resistance |
100M Ohm, Min. |
| Environmental |
383 |
| Vibration Limit |
1,000 g Max (Sine) |
| Shock Limit |
20,000 g Max |
| Temperature Range |
-65 To +350 Deg F (-54 To +175 Deg C) |
| Humidity 3 |
0 To 95% R.H. |
| Base Strain Sensitivity |
0.003 g/uE Equiv, Typical |
| Electromagnetic Sensitivity |
0.005 g (Equiv / 100 Gauss) |
| Acoustic Sensitivity |
0.005 g RMS (Equiv @ 150 dB SPL) |
| Physical |
383 |
| Configuration |
Ring Shear |
| Size |
0.500 In. Hex x 0.550 In. H (12.7 mm Hex x 19.05 mm H) |
| Weight |
0.28 Oz (8 Gm) |
| Case Material |
18-8 Stainless Steel |
| Electrical Interface Coaxial |
10-32 Thread |
| Mounting |
10-32 Tapped Base |
Notes:
1 At +75 Deg F, 10 g Peak, 100 Hz; Lower Frequency Limit is Determined by Associated Electronics
2 Referenced to Sensitivity @ 100 Hz.
3 Unit is Epoxy Sealed
Accessories Supplied
- (1) 10-32 x 0.375” L Mounting Stud, St Stl
- (1) Hardwood Storage Case
- (1) Standard Calibration Data
- (1) Certificate of Calibration Traceable to N.I.S.T.