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B系列


介绍: DescriptionThe B1, B2, and B3sensors are capacitive spring mass accelerometers with integrated sensor electronics. Requiring very low power consumption these are characterized by a high degree of long…

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Description

 

The B1, B2, and B3 sensors are capacitive spring mass accelerometers with integrated sensor electronics. Requiring very low power consumption these are characterized by a high degree of long-term stability. Resonant peaks are minimised by means of a special gas-dynamic damping in the primary transformer.

 

Manufactured with an Analog DC output, the integrated sensor electronics require only minimal power and are in conjunction with the capacitive primary transformer characterized by high accuracy, linearity, and long-term stability.

 

Applications

 

The B Series are used for applications requiring high overload tolerance, high long-term stability, small lower cut-off frequency down to measurement of static acceleration, very short on-transition delay and low power consumption.

 

Typical applications include:

 

 measurements on vehicles, machinery, buildings, and plants for process control and error diagnosis

 

 seismic measurements

 

 inclination measurements (i.e. ±90º)

 

 safety engineering

 

 dynamic measurement of position & velocity


Features

 

 Compact housing, less than 1” diameter

 

 Very high overload resistance

 

 Insensitive to interference by magnetic and electric fields

 

 Lower cut-off frequency is zero, hence suitable for measuring static acceleration, such as gravity (inclinations) or radial acceleration (centrifugal force)

 

 Linear frequency response with little or no resonant peak at upper cut-off frequency

 

 Low non-linearity

 

 High signal-to-noise ratio

 

 No measurable hysteresis of signal

 

 Hermetically sealed

 

 High long-term stability

 

 Small temperature drift

 

 Integrated sensor electronics

 

 Analog DC or pulse width modulated or frequency modulated output

 

 Low power consumption

 

 Very short settling time  Multiple housing options


 


 








MECHANICAL CHARACTERISTICS



Housing





Nickel Plated Brass

















Protection Degree





IP65






Mounting





M4 Mounting Stud, M3 optional



Mounting Plane





See “Figure 1”






Outline Dimensions





Ø 0.945” (Ø 24mm) X .434” (11mm) h



Electrical



Standard


3 highly flexible, color-coded wires Ø 0.04” (Ø 1.0mm) x 7.0” (18cm)







A: Shielded cable Ø 0.083” (Ø 2.1mm) x 1.65’ (0.5m)



Connection



Optional







B: 3 highly flexible, single color wires with Teflon isolation for extended temperature range









Weight





Approx. 0.89 ounces (25 grams) (not including cable)



Operating Temperature


-40°F to +185°F

(-40° to +85°C ), optional +257ºF (+125ºC)



Storage temperature





-49°F to +194°F

(-45° to +90°C ), optional +257ºF (+125ºC)



























TYPE


B1


B2


B3








Measuring Range


±3g (Approx. ±30m/s2)


±10g (Approx. ±100m/s2)


±50g (Approx. ±500m/s2)








Resolution


<.001g


<.005g


<.020g








Frequency Range


0…160Hz


0…350Hz


0…550Hz








Max. Non-linearity



<0.5%










Cross Axis Sensitivity



<1%










Mechanical Overloading in



10,000g (Approx. 100,000m/s2)


Measuring Direction







Power Supply UbN (Regulated)




5 Volt


Min ... Max. Supply Ubz




3 ... 6 Volt


Current Consumption Ub=5Volt




Approx. 1mA



ANALOG VOLTAGE OUTPUT MODEL AT UBN=5VOLT


Sensitivity


Approx. 110mV/g


Approx. 23mV/g


Approx. 6.5mV/g








Temperature Drift of Sensitivity




< +0.06%/°C









Temperature Drift of Zero




< 0.1mV/°C









Zero Offset at Ub=5V



2.5 ±0.1 Volt - generally: 0.5Ub ±4%








Output Impedance




10k









 

Digital pulse-width modulated output signal - linear to the degree of angle - available upon request.

 

CABLE WIRING TABLE:

 


3-WIRE (standard)


SHIELDED CABLE (optional)





RED

+5VDC Stable

RED

+5VDC Stable

WHITE

Output Signal

BLUE

Output Signal

BLUE

GND (housing)

SHIELD

GND (housing)





 

ATTENTION! The supply voltage must not exceed 6 Volt and the polarity must not be reverse

 

 

 

 

 

 

 

 

 

 

 

 


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