CHARGE · SHEAR · DC SHOCK[email protected]
PZAQUARTZ & CERAMIC DYNAMICS
02 / Low mass · Dynamic response

Miniature shear & tear-drop piezo accelerometers

Protect the mode you are trying to measure. Start with local modal mass, the required mounted bandwidth and cable restraint, then choose sensor mass and a charge or voltage output.

Content reviewed

PZA-MIN / INSTALLATION DECISION

Sensor mass is only one part of the mass-loading problem.

Use local modal effective mass rather than total assembly mass. In the simple illustration, stiffness is held constant and added mass changes frequency in proportion to sqrt(M/(M+m)). For M=10g, adding 11g gives a ratio of about 0.690; adding 0.14g gives about 0.993. This is a calculation, not a prediction for your component.

Include adhesive, mounting base and the moving part of the lead in the review. Keep the lead restrained without loading the measured mode. A sensor-only mass excludes cable mass and cannot guarantee an unchanged natural frequency.

Charge and voltage miniature sensors need different conditioning. Identify an integral or replaceable micro lead before ordering an extension cable. The 2.4g high-temperature charge request is a separate configuration from the sub-gram voltage requests.

Illustrative local modal mass model comparing 11g and 0.14g added sensor mass with fixed stiffness
Original engineering concept. Any numerical example is illustrative; actual hardware and installed performance require confirmation.
Does a 0.14g sensor eliminate mass loading?

It reduces one source of added mass. The local mode, adhesive, mounting base and cable restraint still affect the installed measurement.

Is the 60kHz resonance a 60kHz usable measurement band?

No. Specify a flatness tolerance and mounting method for the usable band. Resonance and flat response are separate quantities.

Can a miniature voltage sensor use an external charge converter?

The integral electronics already provide voltage output. Use a compatible powered voltage/IEPE input; an external charge converter belongs to a charge-output chain.

Read the original-model reference and approval checks →

PZA-MIN / SELECT A REQUEST PROFILE

Separate 0.14g charge, sub-gram voltage and 2.4g hot configurations.

Each PZA identifier describes a configuration to quote. The requested targets below remain subject to supply, drawing and calibration review.

PZA-MIN-014C

0.14g charge modal request

Adhesive mounting and an integral micro lead for very light structures.

Requested output / axes
Charge · pC/g · 1 axis
Connection review
Integral / removable micro lead
  • 0.14g sensor-only mass target
  • Charge output; nominal sensitivity to confirm
  • Installed bandwidth, adhesive and lead restraint review
Original references and differences to review
Endevco Model 22 ↗

Legacy reference; original sheet describes non-hermetic epoxy sealing.

PCB 357A08 ↗

The index identifies original-manufacturer alternatives; it does not approve a PZA substitute.

Request PZA-MIN-014C ↗
PZA-MIN-020V

0.2g voltage modal request

Low-mass voltage output with a matched constant-current input.

Requested output / axes
Voltage · mV/g · 1 axis
Connection review
Integral / removable micro lead
  • 0.2g sensor-only mass target
  • Voltage sensitivity and excitation to confirm
  • Micro lead, mounting adhesive and flatness tolerance review
Original references and differences to review
PCB 352C23 ↗

Voltage output. Do not insert a charge amplifier after the integral electronics.

Request PZA-MIN-020V ↗
PZA-MIN-040V

0.4g voltage modal request

Review removable micro cable access and the installed mode shape.

Requested output / axes
Voltage · mV/g · 1 axis
Connection review
Integral / removable micro lead
  • 0.4g sensor-only mass target
  • 10 mV/g nominal request
  • Removable lead and electrical isolation by configuration
Original references and differences to review
Endevco 2250A ↗

Legacy reference. Read the suffix and calibration sheet before choosing a sensitivity.

PCB 352A71 ↗

The index identifies original-manufacturer alternatives; it does not approve a PZA substitute.

PCB 352A21 ↗

Buyer-reference entry for manual review.

Request PZA-MIN-040V ↗
PZA-MIN-240C

2.4g high-temperature miniature request

For a miniature charge requirement beyond the temperature of integral electronics.

Requested output / axes
Charge · pC/g · 1 axis
Connection review
Integral / removable micro lead
  • 2.4g sensor-only mass target
  • Up to +250°C probe temperature request
  • Miniature connector and low-noise extension review
Original references and differences to review
B&K 4393 ↗

The 10% limit is not a 5% flat-band claim.

Request PZA-MIN-240C ↗
PZA-MIN / CONFIGURATION REVIEW

Define the test envelope.

Thin blades, circuit boards, miniature motors, lightweight structures and modal tests.

Requested options for review — these are configuration targets, not released specifications.
Sensor mass request0.14, 0.2, 0.4, 0.5, 1.0 or 2.4 grams; configuration dependent
Dynamic range request±50g to ±2,000g; g denotes acceleration here
Frequency request1 Hz to 25 kHz; flatness tolerance and installed mounting must be specified

Range, temperature, sensitivity and bandwidth combinations require model-specific confirmation, controlled drawings and calibration requirements.

Before you select

  1. Evaluate sensor plus adhesive and cable against the local modal effective mass.
  2. Distinguish a requested 60 kHz resonance from the usable flat measurement bandwidth.
  3. Confirm integral electronics or charge output, connector access and strain relief.

Original-model review candidates
Endevco 2250A / 25A; PCB 352A21 / 352A71; Dytran 3224A

Review replacement criteria →

Confirm the PZA-MIN output before connecting the DAQ.

Three separate chains: charge sensor to remote charge amplifier or converter, voltage sensor to IEPE input, and piezoresistive bridge to excitation and differential DC input
Conceptual signal paths. Actual electrical and thermal limits require a configuration review.
PZA-MIN / QUOTE & CAD

Send the PZA-MIN configuration, channels and document scope.

Accessories are optional quotation requests. Selection and final pricing follow the electrical, mounting and temperature review.

PZA engineering request
Optional accessories — quote by configuration

State the sensor output, source resistance, gain, channel count and receiving DAQ input.

Documents to request
Open prefilled email ↗

Current request: PZA-MIN custom configuration. Changing output, topology or temperature may require a custom review.

Email [email protected]. If your desktop mail app shortens a long brief, use copy or download. No attachments are uploaded by this form.

Preview the complete engineering brief
PZA engineering RFQ
Name: Not provided
Company / lab: Not provided
Reply email: Not provided
Family: PZA-MIN
PZA request profile: Unspecified
Sensing technology: Miniature / tear-drop piezoelectric
Output: Output to review
Axes / peak g: Specify in test brief
Independent channels: To confirm
Local operating temperature: Cryogenic / other — specify local temperatures
Conditioning: Review the existing DAQ / need advice
Connector / topology: Connector / topology to review
Converter polarity: Not applicable
Original model: Not provided
Original source: No exact original reference matched; manual review
Reference status: No exact source match
Quantity: 1
Source: /miniature-shear-piezo-accelerometers
Optional accessories: None
Documents requested: None
No PZA hardware configuration assumed.
Configuration review only; compatibility, temperature, calibration, prices and delivery require confirmation.
Test brief:
Not provided
CAD / CALIBRATION / QUOTATION

Request the documents that close the engineering review.

Sensor-only and lead mass, adhesive interface, mounted response and micro-cable connection.

Controlled datasheet & CAD

Ask for the quoted configuration, revision, complete dimensions, tolerances, mounting thread, cable and connector. STEP availability is confirmed against that exact configuration.

Calibration & traceability scope

State reference frequency, amplitude, excitation and temperature. Request available sensitivity, capacitance, transverse response and frequency/temperature records. A named calibration standard alone is not a test result.

Formal quote / PI inputs

Include sensor and channel counts, accessories, calibration scope, destination, delivery window and required documents. Prices and availability are confirmed in the quotation.

No released PZA CAD, measured certificate or commercial quote is supplied by these concept pages. Select the required documents in the RFQ; we will confirm what can be provided for the proposed configuration.

Request CAD and calibration scope ↗