PRODUCT DATA. Piezoelectric Charge Accelerometer Types 4500 A and 4501 A. Uses and Features

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PRODUCT DATA Piezoelectric Charge Accelerometer Types 00 A and 0 A Types 00 A and 0 A are general purpose piezoelectric accelerometers that feature the ThetaShear design, giving them low sensitivity

1 PRODUCT DATA Piezoelectric Charge Accelerometer Types 00 A and 0 A Types 00 A and 0 A are general purpose piezoelectric accelerometers that feature the ThetaShear design, giving them low sensitivity to environmental factors. These accelerometers are suitable for applications that require a large number of accelerometers such as structural and modal testing. Uses and Features Uses General purpose vibration and shock measurements Structural and modal analysis Features Low sensitivity to environmental factors Electrically insulated for ground loop protection High resonance frequency Description Fig. Left: Dimensions of Type 00 A Right: Dimensions of Type 0 A A. All dimensions in millimetres Direction of acceleration A. 007/ Types 00 A and 0 A are piezoelectric charge accelerometers with ThetaShear design. Both types feature a UNF connector. On Type 00 A, the connector is on the top surface, perpendicular to its main sensitivity axis. On Type 0 A, it is on the side surface, parallel to its main sensitivity axis. The piezoelectric element used in Types 00 A and 0 A is PZ and the housing is made of anodized aluminium. Ground Insulation Types 00 A and 0 A feature an inner and outer housing. The sensor is mounted to the inner housing with glue, providing electrical insulation. This avoids ground loop noise, which can be a problem in multichannel measurements. The accelerometers are electrically insulated with respect to signal ground and have a resistance of more than MΩ.

2 Characteristics Types 00 A and 0 A are piezoelectric accelerometers and may be treated as charge sources. Their sensitivity is expressed in terms of charge per unit acceleration (pc/ms, pc/g). Fig. Exploded view of the ThetaShear design. Components are as follows: () UNF connector () Top () Piezoelectric plates () Seismic mass () Clamping ring () Housing Types 00 A and 0 A have high measurement stability and excellent sensitivity to weight ratio due to the ThetaShear design. In addition, the transverse resonance frequency is always outside the % frequency limit. This ensures minimum interference from orthogonal vibration components in the useful frequency range of the accelerometer. The ThetaShear design also provides excellent immunity to environmental effects such as base strains, magnetic sensitivity and acoustic fields. ThetaShear Design The ThetaShear design consists of a slotted cylindrical frame that holds a central seismic mass flanked by two piezoelectric plates and clamped rigidly by a ring. To ensure optimum accuracy and reliability, no bonding agent other than molecular adhesion holds the assembly together. 90/ Note that Fig. uses a generic accelerometer to display the ThetaShear design and does not show the inner housing of Types 00 A and 0 A. Calibration Each accelerometer is calibrated using random excitation and 00 line FFT transformation to provide a high resolution (amplitude and phase) frequency response. This yields a unique characterization and secures the integrity of your vibration measurements. The sensitivity given on the calibration chart is measured at 9. Hz with 9% confidence level using coverage factor k =. The upper frequency limits given on the calibration chart are frequencies where the deviation from the reference sensitivity at 9. Hz is within ±%. The upper frequency limit is approximately 0% of the mounted resonance frequency. This assumes that the accelerometer is correctly mounted on the test structure poor moun ng can have a marked effect on the mounted resonance frequency. The lower frequency limits and phase response are determined by the built in preamplifiers. The lower frequency limits are given in the specifications for deviations from reference sensitivity within ±%. Fig. Frequency response curves for Types 00 A and 0 A Typical Frequency Response Typical High-frequency Response Sensitivity [%] Phase [Degrees] Sensitivity [db] Phase [Degrees] Amplitude Phase 0 Amplitude Phase k k k k k [Hz] [khz] 008

Calibration Clip For field checking and system calibration, Calibration Clip DV 09 can be used in combination with Calibration Exciter Type 9. Fig.

9 oz) Mounting Types 00 A and 0 A are mounted with adhesive (with or without the use of mounting clips).

They work in combination with grooves in the housing, making the accelerometer easy to fit or remove, for example, to calibrate.

3 Calibration Clip For field checking and system calibration, Calibration Clip DV 09 can be used in combination with Calibration Exciter Type 9. Fig. Calibration Clip DV 09 Material: Base: Spring: Mounting surface diameter: Mounting thread: Weight: Hardened stainless steel Stainless steel mm UNF 7 g (0.9 oz) Mounting Types 00 A and 0 A are mounted with adhesive (with or without the use of mounting clips). The various mounting clips are designed to suit a variety mounting surfaces and are attached to the test object with glue or double sided adhesive tape. They work in combination with grooves in the housing, making the accelerometer easy to fit or remove, for example, to calibrate. Common Specifications for Mounting Clips Temperature range: For brief use (< hour): Maximum acceleration: Perpendicular to mounting surface: Material: to +0 C ( to + F) to +80 C ( to +7 F) g peak 70 g peak Glass reinforced polycarbonate Fig. Mounting Clip UA 07 (set of 0) Upper limiting frequency (±%): Type 00 A mounted with grease: Type 00 A dry mounting: Type 0 A mounted with grease: Type 0 A dry mounting: Weight: 0. g.0 khz. khz.0 khz.0 khz Fig. Mounting Clip with Thick Base UA 7 (set of 0). The base can be filed down to suit the mounting surface Upper limiting frequency (±%): Type 00 A mounted with grease: Type 00 A dry mounting: Type 0 A mounted with grease: Type 0 A dry mounting: Weight: 0.7 g.0 khz. khz.0 khz.0 khz

Fig. 7 Mounting Clip with Swivel Base UA 78 (set of 0) Upper limiting frequency (±%): Types 00 A and 0 A are mounted with grease and excited along accelerometer s main axis of sensitivity with the

Use to align and maintain multichannel coordinate system Max.

4 Fig. 7 Mounting Clip with Swivel Base UA 78 (set of 0) Upper limiting frequency (±%): Types 00 A and 0 A are mounted with grease and excited along accelerometer s main axis of sensitivity with the mounting surface of the hemisphere: Perpendicular to the direction of excitation:. khz At to the direction of excitation:.7 khz Weight: 0.8 g Fig. 8 Spirit Level UA 80. Use to align and maintain multichannel coordinate system Max. dimensions: 8 7 mm Material: Black, anodized aluminium Cabling When using miniature accelerometers, the cable can affect the measurement result. Forces exerted on the connector by the cable can cause amplitude irregularities in the output at frequencies up to approximately 00 Hz. This can be reduced by using a flexible cable. To effectively reduce the problem at low frequencies, it is recommended to clamp the cable. One way of doing this is to make a small loop in the cable close to the accelerometer (max. diameter 0 mm) and clamp the cable beside the base of the accelerometer with mounting wax or double sided tape. This also reduces the possibility of dynamically induced noise generated by the cable. Brüel &Kjær s Uniaxial Charge Accelerometers Types 00 A and 0 A are part of a family of uniaxial charge accelerometers. To find the uniaxial accelerometer that fits your needs, visit Table Comparison of Brüel & Kjær uniaxial charge accelerometers for clip mounting 00 A 0 A 07 C 08 C Temperature C ( F) 7 (7) 0 (8) Number of connectors Weight g.. Isolated Yes No Capacitance pf 00 0 Frequency range Hz to 000 to to 000 to 8000 Mounting Mounting clip, adhesive Sensitivity pc/ms Product Data BP 7 BP 8

5 Specifications Piezoelectric Charge Accelerometer Types 00-A and 0-A Type No. 00 A 0 A General Weight Charge Sensitivity (at 9. Hz) All values are typical at C (77 F) gram oz pc/ms 0. pc/g. Frequency Range ±% limit to 000 to 000 Hz ±% limit to 8000 Mounted Resonance Frequency khz 0 Max. Transverse Sensitivity (at 0 Hz, 0 ms ) % < Transverse Resonance Frequency khz >0 Measuring Range (± peak) Electrical kms 0 g 09 Residual Noise Level mms 7.0 (measured with NEXUS Type 9 00 in the specified frequency range) mg 0.77 Capacitance (excluding cable) pf 00 Case (signal ground) Insulation to Base MΩ > Min. Leakage Resistance (at 0 C) GΩ >0 Environmental C to +7 Operating Temperature Range F 7 to +7 Temperature Coefficient of Sensitivity %/ C 0.0 * 0. * Temperature Transient Sensitivity ( Hz Low. Lim. Freq. ( db, db/octave)) Base Strain Sensitivity (at 0 µε in the base plane) Magnetic Sensitivity (0 Hz, 0.08 T) Max. Non destructive Shock (± peak) *In the temperature range to + C ( to +7 F) Mounted in mounting clip ms / C 0.00 g/ F 0.0 ms /µε 0.00 g/µε ms /T g/kg 0.0 kms 0 g Mechanical Housing Material Anodized Aluminium Piezoelectric Sensing Element PZ Construction ThetaShear Sealing Welded Electrical Connector UNF A Mounting Mounting clip or Adhesive

6 B 7/-'89 K Compliance with Standards Safety EMC Emission EMC Immunity Temperature Humidity The CE marking is the manufacturer's declaration that the product meets the requirements of the applicable EU directives RCM mark indicates compliance with applicable ACMA technical standards that is, for telecommunications, radio communications, EMC and EME China RoHS mark indicates compliance with administrative measures on the control of pollution caused by electronic information products according to the Ministry of Information Industries of the People s Republic of China WEEE mark indicates compliance with the EU WEEE Directive EN and IEC : Safety requirements for electrical equipment for measurement, control and laboratory use UL : Standard for Safety Electrical measuring and test equipment EN/IEC 00 : Generic emission standard for residential, commercial and light industrial environments EN/IEC 00 : Generic emission standard for industrial environments CISPR : Radio disturbance characteristics of information technology equipment. Class B Limits FCC Rules, Part : Complies with the limits for a Class B digital device EN/IEC00 : Generic standards Immunity for residential, commercial and light industrial environments EN/IEC 00 : Generic standards Immunity for industrial environments Note : The above is only guaranteed using accessories listed in this Product Data sheet Note : The above is only guaranteed when the AC output is not in use IEC 008 & IEC008 : Environmental Testing. Cold and Dry Heat Operating Temperature: to +7 C ( 7 to +7 F) Storage Temperature: to +70 C ( to +8 F) IEC : Damp Heat: 90% RH (non condensing at 0 C ( F)) Configuration Examples Fig. Cabling, signal conditioning and data acquisition hardware options for uniaxial piezoelectric charge accelerometers Female (F) Male (M) 00-A AO-008 (0 C) 7-A/B/C/D/D-00 UA A AO-0 (0 C) UA UA-0-00 AO-0 (UNF: 0 C, TNC: 0 C) 9 07-C AO-8 (0 C) AO-9 (0 C) JP C AO-00 (0 C) JP-0 Overload Brüel &Kjær NEXUS Conditioning Amplifier Ch. Out Unit U/Pa. V/ms - V/ms - V/ms - 07

7 Ordering Information Type 00 A Piezoelectric charge accelerometer with top connector Type 0 A Piezoelectric charge accelerometer with side connector Each accelerometer includes the following accessories: Carrying box Calibration chart One mounting clip Optional Accessories CABLING AO 008 x yyy * Super low noise cable, UNF (M), 0 C (8 F) AO 0 x yyy * Super low noise, robust double screened cable, UNF (M), 0 C (8 F) AO 0 x yyy * Super low noise cable, UNF (M) to TNC (M), 80 C ( F) AO 00 x yyy * Low noise double screened cable, UNF (M) to BNC (M), 0 C (8 F). Includes JP 0 AO 8 x yyy * Low noise, double screened cable, UNF, 0 C (8 F) AO 9 x yyy * Very light and flexible low noise coaxial cable with UNF (M), 0 C (8 F) JP 0 Plug adaptor, UNF (F) to BNC (M) QA 00 Cable accessory set, tools for cable and connector assembly QA 00 Tool, cable connecting and removal UA 00 Connector, UNF (M) for mm to mm cable jacket (set of ) UA 08 Extension connector, UNF (F) (set of ) UA Red/green/yellow cable markers for. mm cable jacket ( 0 pieces) UA Red/Green/Yellow Cable markers for.9 mm to. mm cable jacket ( 0 pieces) MOUNTING QS 0007 Tube of cyanoacrylate adhesive UA 07 Mounting clip, small (set of 0) UA 7 Mounting clip with thick base, small (set of 0) UA 78 Mounting base with swivel base, small (set of 0) UA 80 Spirit level for all swivel bases UA High temperature mounting clip, small (set of ) YJ 0 Beeswax for mounting CONDITIONING AND DATA ACQUISITION HARDWARE Type 0 B 0 ch. Input Module LAN XI. khz (CCLD, V) UA 0 LAN XI Front Panel, channel Charge, UNF (F) microdot connectors (Gain: mv/pc) Type 00 A 00 ch. Input Module LAN XI. khz (Mic, CCLD, V) UA 00 LAN XI Front Panel, Charge Accelerometer, ch. for the family of Charge to CCLD Convertor Type 7 Type 7 A/B Charge to CCLD Convertor Type 9 NEXUS Conditioning Amplifier CALIBRATION Type 9 Calibration exciter DV 09 Calibration clip, small Calibration Services 0X CAF 0X CAI 0X CFF 0X CTF Accredited calibration Accredited initial calibration Factory standard calibration Traceable calibration * x=d (decimetres) or M (metres) yyy = length in decimetres or metres Please specify cable length when ordering X=0 or 7

8 Brüel & Kjær and all other trademarks, service marks, trade names, logos and product names are the property of Brüel & Kjær or a third party company. ËBP-7--->Î BP Brüel & Kjær. All rights reserved. Brüel & Kjær Sound & Vibration Measurement A/S DK 80 Nærum Denmark Telephone: Fax: info@bksv.com Local representatives and service organizations worldwide Although reasonable care has been taken to ensure the information in this document is accurate, nothing herein can be construed to imply representation or warranty as to its accuracy, currency or completeness, nor is it intended to form the basis of any contract. Content is subject to change without notice contact Brüel & Kjær for the latest version of this document.

PRODUCT DATA. Charge to CCLD Converter Types 2647 A, B, C, D, D 001, D 002, D 003, D 004, and E. Features and Benefits. Features

PRODUCT DATA. Charge to CCLD Converter Types 2647 A, B, C, D, D 001, D 002, D 003, D 004, and E. Features and Benefits. Features PRODUCT DATA Charge to CCLD Converter Types 2647 A, B, C, D, D 001, D 002, D 003, D 004, and E This family of charge to CCLD * converters is designed to connect charge transducers to CCLD inputs. All types