CHARGE · SHEAR · DC SHOCK[email protected]
PZAQUARTZ & CERAMIC DYNAMICS
04 / DC response · Bridge output

Piezoresistive DC & high-G shock accelerometers

For a long pulse or a measurement that must include DC, review a piezoresistive bridge sensor with matched excitation and differential conditioning. Peak acceleration alone does not define a shock measurement.

Content reviewed

PZA-PRZ / INSTALLATION DECISION

DC response, damping and pulse fidelity must agree.

A piezoresistive bridge can retain DC response, but excitation, zero offset, temperature drift and self-heating still affect the measurement. Use the excitation at which the proposed calibration is performed and a suitable differential DC input.

Peak g alone is insufficient. State pulse duration, rise time, shock spectrum, required flat band and anti-aliasing. A mechanically filtered configuration changes the pulse response and mounting; an undamped high-resonance reference is not a universal substitute for a damped crash channel.

Review the seismic-mass coordinates, mounting footprint, cable lead colors and torque against the actual controlled drawing. A shunt check verifies an electrical path under specified conditions; it does not replace an acceleration calibration. PZA-7270-Z is a zero-output fixture request with resistance and excitation still to confirm.

Piezoresistive bridge excitation, mechanical filtering and shock acquisition reviewed separately
Original engineering concept. Any numerical example is illustrative; actual hardware and installed performance require confirmation.
Can a charge amplifier condition a piezoresistive bridge?

No. The bridge needs calibrated excitation and a differential DC measurement path. Charge amplifiers condition a different signal type.

Does DC response guarantee zero drift during a long pulse?

No. Review offset, temperature, excitation stability and the full measurement window. Distinguish true acceleration from an electrical zero change.

Is the ±60,000g entry a released PZA rating?

It is a feasibility request beyond the core ±50,000g planning range. Measurement range, pulse conditions, survival and calibration must be confirmed separately.

Read the original-model reference and approval checks →

PZA-PRZ / SELECT A REQUEST PROFILE

Separate crash, high-G, filtered and three-axis bridge requests.

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

PZA-PRZ-7264

DC crash-test bridge request

Damping, excitation, shunt calibration and seismic-mass coordinates are review items.

Requested output / axes
Piezoresistive bridge · DC · 1 axis
Connection review
Bridge lead / pinout
  • ±500g / ±2,000g range requests
  • DC response with calibrated bridge excitation
  • Mounting footprint, pulse window and zero-offset allowance
Original references and differences to review
Endevco 7264C ↗

Buyer-reference entry for manual review.

Request PZA-PRZ-7264 ↗
PZA-PRZ-7270

High-G DC shock bridge request

Specify rise time, pulse duration and anti-aliasing alongside peak g.

Requested output / axes
Piezoresistive bridge · DC · 1 axis
Connection review
Bridge lead / pinout
  • ±2,000g to ±50,000g core requests; ±60,000g feasibility review
  • DC bridge output; gain and excitation to confirm
  • Measurement range, survival and bandwidth are separate requirements
Original references and differences to review
Endevco 7270A ↗

Range-specific bandwidth, survival and suffixes must be read from the original table.

PCB 3991 series ↗

Buyer-reference entry for manual review.

Request PZA-PRZ-7270 ↗
PZA-PRZ-7270M6

Mechanically filtered shock request

Mechanical filtering changes the pulse response and must be reviewed with the test spectrum.

Requested output / axes
Piezoresistive bridge · DC · 1 axis
Connection review
Bridge lead / pinout
  • Mechanical-filter configuration request
  • DC to 10 kHz flat-band target with tolerance to specify
  • Filter construction, temperature and pulse fidelity need confirmation
Original references and differences to review
Endevco 7270AM6 ↗

The filtered mount differs from the flat two-screw 7270A footprint.

Request PZA-PRZ-7270M6 ↗
PZA-PRZ-7274

Three-axis high-G bridge request

Three bridge channels and the exact eight-conductor cable/pinout require review.

Requested output / axes
Piezoresistive bridge · DC · 3 axis / 3 channels
Connection review
Bridge lead / pinout
  • Three orthogonal high-G bridge channels
  • ±2,000g to ±50,000g core requests; ±60,000g review
  • Coordinate, footprint and channel matching review
Original references and differences to review
Endevco 7274A ↗

Same footprint family is not sufficient for electrical substitution.

Request PZA-PRZ-7274 ↗
PZA-PRZ / CONFIGURATION REVIEW

Define the test envelope.

Crash-test instrumentation, long-duration acceleration and laboratory high-G shock programs.

Requested options for review — these are configuration targets, not released specifications.
Range request±500g to ±50,000g core requests; ±60,000g feasibility review
Response requestDC coupled; bandwidth up to 10 kHz requires model and pulse review
Output requestWheatstone bridge; calibrated excitation, zero offset and gain to confirm

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

Before you select

  1. Provide pulse duration, rise time, shock spectrum, sample rate and mounting conditions.
  2. Specify damping, DC coupling, differential input, calibrated bridge excitation and zero-offset allowance.
  3. Review temperature drift and self-heating; DC response does not imply zero drift.

Original-model review candidates
Endevco 7264C / 7270A; PCB 3991 / 3501 series

Review replacement criteria →

Confirm the PZA-PRZ 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-PRZ / QUOTE & CAD

Send the PZA-PRZ 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

Confirm calibrated excitation, damping, differential DC input and zero-offset allowance. The dummy is a requested electrical verification fixture, not an approved shock sensor.

Documents to request
Open prefilled email ↗

Current request: PZA-PRZ 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-PRZ
PZA request profile: Unspecified
Sensing technology: Piezoresistive DC & high-G shock
Output: Piezoresistive bridge · DC
Axes / peak g: Specify in test brief
Independent channels: To confirm
Local operating temperature: Cryogenic / other — specify local temperatures
Conditioning: Bridge excitation + differential DC conditioning
Connector / topology: Bridge lead / pinout
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: /piezoresistive-shock-crash-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.

Bridge excitation, pulse duration, damping, seismic-mass coordinates, lead colors and mounting torque.

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 ↗