A sensor from Measurement Specialties uses gas-damped MEMs technology for high-g shock protection.
The 4610A is a versatile sensor
with integral temperature compensation for both static and dynamic
measurements. The 4610A is a rugged, ultra low-noise DC accelerometer
that measures shock and vibration levels up to 2,000g via an integrated
element with mechanical overload stops. It is particularly useful for
detecting low frequency, low amplitude vibration in a variety of
applications, including structural monitoring, road vehicle testing,
transportation and machine control. Operating over a wide temperature
range of -55°C to +125°C, the 4610A is offered in ranges from ±2 g to
±100 g with a flat frequency response to 1.5 kHz.
incorporates an ultra low-noise amplification circuit for a ±2 Vdc
full-scale output with a dynamic range of 97 dB. The accelerometer
features a signal-conditioned, DC-coupled output and can be configured
in single-ended mode or in differential mode for higher performance
applications, where good common mode rejection is desirable. Excitation
voltage ranges from 8 Vdc to 30 Vdc, with an excitation current
of less than 12 mA. Housed in an anodised aluminum package, the 4610A
is suitable for use in rugged environments. The unit is epoxy sealed to
IP62 specifications and the flexible cable assembly
is constructed of a TPE-jacketed cable with an integral braided shield
and PFA-insulated leads. A triaxial configuration is offered in the
model 4630A package.
Measurement Specialties; www.meas-spec.com/product/tm_product.aspx?id=9902
This article originally appeared on EE Times Europe.