*mydirectindustry

Catalogs
Metra Mess- und Frequenztechnik in Radebeul e.K.
Capacitive Accelerometers

Capacitive Accelerometers

Product catalog summary

Overview: This document provides technical specifications and details for the CB11 and CB21 capacitive accelerometers, suitable for static measurements starting from 0 Hz. These devices feature micro-machined sensing elements, low temperature influence, and low resonance peak due to gas damping.

Specifications:

Voltage Sensitivity: 250 ± 2% mV/g for CB11 and 250 ± 20% mV/g for CB21.
Measurement Range: ±2 g for both models.
Linear Frequency Range: 0 to 400 Hz (-3 dB) and 0 to 1000 Hz (-6 dB).
Resonant Frequency: 2500 Hz for both models.
Non-linearity: Less than 2%.
Noise Density: 15 µg/√Hz for CB11 and 25 µg/√Hz for CB21.
Operating Temperature Range: -40 to 80°C (-40 to 176°F).
Power Supply: 8 to 30 VDC with a current of 2.5 mA.
Weight: 10 g (0.35 oz) for CB11 and 20 g (0.7 oz) for CB21.
Case Material: Anodized aluminum.

Connection and Mounting:

1 m cable with a 4-pin plug.
Mounting options include M2.5/M3 screws or adhesive.

Connector Scheme:

Pin 1: 0 V
Pin 2: Output
Pin 3: Supply voltage +8 to 36 V DC
Pin 4: Internally generated offset voltage +2.5 V

The output voltage at pin 2 is always positive and can be referenced to the internally generated 2.5 V at pin 4 for bipolar output requirements.

Accessories:

Supply Unit Mod. 037
2 m extension cable

Note: Specifications are subject to change without prior notice.

Catalog excerpts

Kapazitive Beschleunigungsaufnehmer 1.11 Capacitive Accelerometers Geeignet für statische Messungen (ab 0 Hz) Mikromechanisches Sensorelement Geringe Temperaturabhängigkeit Geringe Resonanzüberhöhung durch Gasdämpfung Niederimpedanter Spannungsausgang Versorgungsspannung +8 .. 30 V Suitable for static measurements (0 Hz) Micro-machined sensing element Low temperature influence Low resonance peak by gas damping Low impedance voltage output Supply voltage +8 .. 30 VDC Technische Daten Technical Data Spannungsübertragungsfaktor • Voltage SensitivityBua Meßbereich • Range Ausgang Output Linearer Frequenzbereich • Linear range Resonanzfrequenz • Resonant frequency Nichtlinearität • Non-linearity Rauschen bei voller Bandbreite • Noise for full BW Rauschdichte • Noise density Ausgangs-Ruhespannung • Output bias voltage Querrichtungsfaktor • Transverse sensitivity Maximalbeschleunigung • Maximum acceleration (0,7 ms Halbsinus • 0,7 ms half sine) Arbeitstemperaturbereich Operating temperature range Temperaturkoeffizienten • Temperature coefficients Bua UBIAS Stromversorgung / Power supply Masse ohne Kabel • Weight without cable Gehäusematerial Case material Anschluß Connection Befestigung Mounting Tmin / Tmax TK(Bua) TK(UBIAS) Us / Is m 0,02 0,02 <2 <2 8..30 / 2,5 8..30 / 2,5 10 / 0.35 20 / 0.7 Aluminium, elox. Aluminium, elox. Aluminum, anod. Aluminum, anod. 1 m Kabel mit 41 m Kabel mit 4poligem Stecker poligem Stecker 1 m cable with 4 pin 1 m cable with 4 plug pin plug Schrauben M2,5 / Schrauben M2,5 / M3; kleben M3; kleben screws M2.5 / M3, screws M2.5 / adhesive M3, adhesive

Open the catalog to page 1

Abmessungen (M 1:2) Dimensions (Scale 1:2) Typische Frequenzgänge Typical Amplitude Response 0 -3 dB Steckerbelegung Connector Scheme 1 Stecker Serie Binder 711 Plug Mod. Binder 711 Ausgang Output Versorgungsspannung + 8 .. 36 V Supply voltage +8 .. 36 V DC Intern erzeugte Bezugsspannung +2,5 V Internally generated offset voltage +2,5 V Die Ausgangsspannung an Pin 2, bezogen auf 0 V (Pin 1), ist immer positiv und beträgt 2,5 V ± Ua. Wird eine bipolare Ausgangsspannung 0 V ± Ua benötigt, kann als Bezugspotential die intern generierte Spannung von +2,5 V (Pin 4) verwendet werden. The sensor generates...

Open the catalog to page 2

Capacitive Accelerometers

Capacitive Accelerometers

Catalog excerpts

All Metra Mess- und Frequenztechnik in Radebeul e.K. catalogs and technical brochures

Archived catalogs