The Metromatics Series MM222A, MM211A and MM247A are Piezoelectric Charge Mode Shock Accelerometers with high sensitivity and low noise characteristics. Overall, features include high stiffness, quick response, and a high value of acceleration. In addition, this series has a measuring range of 5,000 to 100,000 g.
Secondly, these accelerometer shock sensors are made from either strengthened stainless steel or titanium providing true durability. Also, most models are hermetically sealed. Therefore, providing a barrier to protect the inner workings of the sensor allowing it to operate in conditions from -40 to +65°C.
How Charge Mode Shock Accelerometers operate
The core of high shock accelerometer is the piezoelectric crystal. Firstly, when these accelerometers encounter acceleration or a shock event, the crystal produces a proportional electrical output on its surface due to the piezoelectric effect.
However, this charge needs to be amplified to become measurable. To do this there are two choices depending on your measurement requirements. Use a
- Charge amplifier – allows for gain/range adjustment.
OR
- In-line charge converter which has a fixed conversion factor and requires power.
These items complete the signal conversion. Then signals proceed to data acquisition systems for further analysis.
To learn more about our Charge Mode Shock Accelerometers, consult the table below or contact us.
CHARGE MODE SHOCK ACCELEROMETERS
| Model | MM222A-02 | MM-211A-01G | MM211A-02G | MM211A-05G | MM211A-10G | MM247A-01 | MM247A-02 |
|---|---|---|---|---|---|---|---|
| Sensitivity pC/g | 1.8 | 1.25 | 0.65 | 0.17 | 0.13 | 1 | 0.5 |
| Measuring Range g pk | ±5,000 | ±10,000 | ±20,000 | ±50,000 | ±100,000 | ±5,000 | ±10,000 |
| Non-linearity % | ±5 | ±5 | ±10 | ±10 | ±10 | ±5 | ±5 |
| Frequency Range (±1dB) Hz | 10,000 | 10,000 | 10,000 | 10,000 | 10,000 | 10,000 | 10,000 |
| Resonant Frequency kHz | 40 | 40 | 40 | 40 | 40 | 30 | 30 |
| Temperature Range °C | -40 to +65 | -40 to +65 | -40 to +65 | -40 to +65 | -40 to +65 | -40 to +65 | -40 to +65 |
| Sensing Element | Ceramic/Shear | Ceramic/Shear | Ceramic/Shear | Ceramic/Shear | Ceramic/Shear | Ceramic/Shear | Ceramic/Shear |
| Output Connector | Integral Cable | Integral Cable | Integral Cable | Integral Cable | Integral Cable | (3) M5 | (3) M5 |
| Electronic Isolation Ὠ | - | Case Isolation ≥ 10⁹ | Case Isolation ≥ 10⁹ | Case Isolation ≥ 10⁹ | Case Isolation ≥ 10⁹ | - | - |
| Housing Material | High Strength Stainless Steel | Titanium | Titanium | Titanium | Titanium | High Strength Stainless Steel | High Strength Stainless Steel |
| Sealing | Epoxy Glue | Welded | Welded | Welded | Welded | Epoxy Glue | Epoxy Glue |
| Weight g | 10 | 10 | 10 | 10 | 10 | 40 | 40 |
| Size mm | Փ12.9 x 17.3 | Փ12 x 24.5 | Փ12 x 24.5 | Փ12 x 24.5 | Փ12 x 24.5 | 22 x 22 x 12 | 22 x 22 x 12 |
| Mounting | M5 (Female) | M6 x 0.75 (Male) or M5 (Male) | M6 x 0.75 (Male) or M5 (Male) | M6 x 0.75 (Male) or M5 (Male) | M6 x 0.75 (Male) or M5 (Male) | (2)Փ5 (Thru-hole) | (2)Փ5 (Thru-hole) |
| Spec Sheet | Spec Sheet | Spec Sheet | Spec Sheet | Spec Sheet | Spec Sheet | Spec Sheet | Spec Sheet |
| Buy Now | Buy Now | Buy Now | Buy Now | Buy Now | Buy Now | Buy Now | Buy Now |
