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| BDK3, BDK10, BDK100 Accelerometers of high overload resistance with integrated electronics for dynamic measurement of vibration and acceleration in the frequency range 1Hz to several kHz |
Features
Description
The dynamic
accelerometers BDK3, BDK10, and BDK100 are capacitive spring-mass
accelerometers with integrated sensor electronics. Resonant peaks
are minimized by dynamic gas damping in the primary transformer.
The sensor electronics require only minimal power and are in
conjunction with the capacitive primary transformer characterized
by low error and high long-term stability.
Application
The accelerometers BDK3, BDK10, and BDK100 are used for applications requiring high overload resistance, high long-term stability, small lower cut-off frequency, light weight and low power consumption. Typical applications include:
Technical Specifications
| Type | BDK3 | BDK10 | BDK100 |
| Measuring range | ±3g (ca.±30m/s2) | ±10g (ca.±100m/s2) | ±100g (ca.±1000m/s2) |
| Resolution | <10-3g | <5·10-3g | <5·10-2g |
| Frequency range | 1....300Hz | 1....800Hz | 1....1500Hz |
| Sensitivity at Ub = 5Volt | appr.150mV/g | appr.60mV/g | appr.15mV/g |
| Temperature drift of sensitivity | <+6·10-2 % / K | ||
| Temperature drift of zero point | <0.1mV/K | ||
| Zero offset | (2.5±0.1)Volt - generally: 0.5Ub±4% | ||
| Output impedance | approx. 100 Ohm | ||
| Linearity deviation | <1% | ||
| Transverse sensitivity | <1% | ||
| Mechanical overload resistance in direction of measurement | approx.10 000g (appr.100 000m/s2) ! | ||
| Nominal supply voltage (regulated) | UbN = 5Volt | ||
| Permissible supply voltage range | Ubz=2V ... 16V | ||
| Current drawn at Ub = 5V | approx. 2mA | ||
| Degree of protection | IP65 | ||
| Operating temperature | -40°C ... +85°C | ||
| Storage temperature | -45°C ... +90°C | ||
| Weight in stainless steel housing with thread without cable | approx. 17Gramm | ||
| Weight in small housing without cable | approx. 7Gramm | ||
| Standard electrical connection | 3 highly flexible, color-coded wires ø1mm length approx.18 cm (special lengths on request) | ||
| Alternative electrical connection for sensors in stainless steel housing | 0.5m strong, flexible, shielded cable, 2 wires + shield, ø2.1mm (special lengths on request) | ||
on request: Special design for very low power consumtion up to 30µA
Dimensions (in mm) and Connections
Attention! The supply voltage polarity must not be reversed. |
SEIKA Mikrosystemtechnik GmbH - Söllerweg1- D 87487 Wiggensbach - email: seika@seika.de - Tel.+49 8370 9290070 - FAX:+49 8370 9290079
H118S
