The auxiliary sensor product line covers various sensor types commonly used in complete-vehicle closed-field testing: portable wheel load gauges, ride comfort test accelerometers, road spectrum acquisition accelerometers, pressure sensors, tire temperature and pressure sensors, as well as force sensors for shift force, handbrake force, and pedal force. These sensors can be used with data acquisition instruments to perform tasks such as complete-vehicle weighing, ride comfort testing (GB/T 4790), road spectrum data acquisition, complete-vehicle brake testing, and control force measurement. Some software and special measurement ranges can be customized to customer requirements.

Product Features

·Wheel load gauge: up to 4 units can operate simultaneously and connect to an external display, measuring and showing individual wheel weight, axle weight, and total vehicle mass at the same time; wheels can be measured without being aligned on the weighing pad.

·Piezoelectric triaxial accelerometers, combined with a data acquisition instrument, can perform GB/T 4790 automotive ride comfort test data acquisition; customized calculation software can directly output results and test reports.

·DC MEMS accelerometers are suitable for complete-vehicle road spectrum data acquisition and cover various operating conditions.

·Self-developed pressure sensors cover measurement ranges from zero pressure and negative pressure to 0-2000 bar, and special ranges can be customized.

·Tire temperature and pressure sensors detect tire pressure and temperature in real time, with 16 channels, wireless transmission, and CAN message output; they have a built-in large-capacity battery and a remaining charge indicator.

·The force sensor series (shift force, handbrake force, pedal force) covers control force measurement for shifting, braking, and pedal load; it offers good accuracy and repeatability and is easy to install.

Main Products / Sub-products

Wheel load gauge

Portable weighing instrument: up to 4 units can operate simultaneously and connect to an external display, measuring and showing individual wheel weight, axle weight, and total vehicle mass at the same time; wheels can be measured precisely without being aligned on the weighing pad, which is convenient and fast. Features: accurate measurement results; light weight, operable by a single person; high ingress protection rating, good reliability, and overload capability.

Ride comfort test accelerometers (ZR 730A / ZR 890)

Piezoelectric triaxial accelerometers are widely used in ride comfort testing; combined with a data acquisition instrument, they can perform GB/T 4790 automotive ride comfort test data acquisition. ZEER's customized national-standard ride comfort test calculation software can directly output results and test reports. ZR 730A: titanium alloy package, 4-pin 1/4-28 connector; range ±50/100/500/2000 g; sensitivity 100/50/10/2.5 mV/g; frequency response 0.5-11000 Hz (±3dB); shock limit ±5000 g; operating temperature -55~125℃; weight 4.3 g; dimensions 14.9 x 10.2 x 10.2 mm. ZR 890: nitrile rubber package, integrated cable connection; range ±2/5/10/50 g; sensitivity 1000/400/200/40 mV/g; frequency response 0-400 Hz; shock limit ±5000 g; operating temperature -45~85℃; weight 380 g; dimensions Φ200 x 12 mm. Features: compact and small, low impedance, triaxial measurement, static response. Applications: vehicle drive testing, inertial motion/low-frequency environments, flight, satellite testing, HUMS, NVH.

Road spectrum acquisition accelerometers (ZR 839 / ZR 819)

DC MEMS accelerometers are used for complete-vehicle road spectrum data acquisition and, combined with a data acquisition instrument, can be applied to road spectrum data acquisition under various operating conditions. ZR 839: anodized aluminum package, integrated cable connection; range ±2/5/10/20/30/50/100/500 g; sensitivity 1000/400/200/100/67/40/20/4 mV/g; frequency response 0-10000 Hz (±3dB); shock limit ±5000 g; operating temperature -40~125℃; weight 17 g (excluding cable); dimensions 25 x 25 x 20 mm. ZR 819: range ±2/5/10/20/50/100 g; sensitivity 1000/400/200/100/40/20 mV/g; weight 12 g (excluding cable); dimensions 25 x 25 x 10 mm; otherwise the same as ZR 839. Features: static response, high-frequency response, ultra-low noise. Applications: flight testing, aircraft, and others.

Pressure sensors (ZR P1501-P1505)

ZEER's self-developed pressure sensors can be applied to complete-vehicle brake testing, measuring brake line pressure and vacuum degree, and are also widely used in pressure testing in the construction machinery field. The measurement range covers zero pressure, negative pressure, and 0-2000 bar, and special ranges can be customized. Technical parameters: pressure range 0-3.5 to 2K bar gauge; output range 0.5-4.5V, 4-20mA, 1.0-5.0V, 0-10V, 0-5V; accuracy ±0.5% BFSL; operating temperature -40℃~125℃; length 85.5/85.5/77/62/62 mm (partly excluding cable); overload pressure 5 times the rated range. Typical applications: plastic and alloy injection machines, test and measurement equipment, factory automation, energy management systems, and heavy industry.

Tire temperature and pressure sensor

A device that detects tire pressure and temperature in real time, providing 1 high-precision air pressure sensor and 3 high-precision temperature measurement channels, with measurement data output via a CAN interface; it has a built-in large-capacity battery that requires no removal during use and includes a remaining charge indicator. Main features: 16 channels (four slave units, each with 3 thermocouple channels and 1 air pressure measurement channel); air pressure measurement accuracy error 0.015 kPa; temperature measurement accuracy error 0.05 %FS; each channel has internal cold junction compensation; the measured pressure and temperature at each point are sent wirelessly to the receiver and output as CAN messages. Technical parameters: maximum input overvoltage protection ±45 V; ADC air pressure 24-bit, temperature 19-bit; slave unit charging AC220 V, host unit power supply DC9~36 V; measurement data update rate 10 Hz; low-pass filter 50 Hz; IP 65; wireless communication frequency 433 MHz; thermocouple types K, J, N, R, S, T, E, B (Type K -200~+1372℃, Type J -210~+1200℃, Type N -200~+1300℃, Type R/S -50~+1768℃, Type T -200~+400℃, Type E -200~+1000℃, Type B -250~+1820℃); air pressure range 0~1000 kPa; full-scale linearity error ±5 kPa; accuracy 0.015 kPa. Includes a data transmission instrument (host unit) and tire temperature and pressure sensors (slave units).

Shift force sensor SENGF1

Installed at the original gear knob (shift lever handle) of the vehicle shift lever, it measures the force required for shifting and is used for sliding door open/close force measurement and shift lever shift testing; it can measure bidirectional or triaxial force. Adapters and interfaces allow simple and quick mounting to most vehicles and can be used on vehicles or test benches; optional versions provide direct high-level output. Features: 2-axis and 3-axis force measurement; suitable for most shift levers; high measurement accuracy, nonlinearity <0.05 %FS; aviation aluminum material, ultra-light weight; versatile fixtures. Performance: range 500 N; weight 250 g; accuracy ≤0.3 %F.S; repeatability ≤0.05 %F.S; sensitivity 2 mV/V; maximum supply voltage 15 VDC; recommended supply voltage 10 VDC; operating temperature range -40~80℃; maximum overload ≥150%; signal cable 3 m. Applications: vehicle equipment, test bench equipment, robots and effectors, laboratories, and research.

Handbrake force sensor SENHBF2

Designed specifically to measure the handbrake force of motorcycle handbrake levers, it consists of a sensor and an integrated measurement amplifier, and the applied force is measured by a strain measurement system. Main features: compatible with most handbrake levers; small error caused by the force application position; ergonomic design; fixed via a rubber handle, portable and easy to install. Product parameters: range 0-500 N; overload limit 600 N; accuracy ±0.1 %FS; operating temperature range -10~+50℃; ingress protection rating IP 65; dimensions L100 x W26 x H26.8 mm; material aluminum; cable length 3 m; output 0 V to 2 V.

Pedal force sensor SENBR

Used for pedal load testing, it can be easily mounted on the pedal of any vehicle or on fatigue/durability test benches, and is suitable for accelerator pedals, brake pedals, or clutch pedals. Different measurement ranges are provided to cover vehicles from small cars to heavy trucks. An internal mechanical decoupling design maintains 1 %FS accuracy across different force application points; an integrated amplifier version with high-level output and a digital display is optionally available for all ranges. Main features: range 1500 N or 2000 N; nonlinearity and hysteresis ≤0.1 %FS; ultra-light aluminum alloy material; low sensitivity to eccentric loads (<1.0 %FS); portable mounting fixtures. Product parameters (version without display): nonlinearity ±0.1 %FS; hysteresis ±0.1 %FS; operating temperature range -10~70℃; compensation temperature range 0~50℃; range 500 to 2000 N; sensitivity 2.0 mV/V; safe power supply 12 V; output 0-5 V; cable diameter 3.5 mm, length 2 m, LEMO connector. Version with display: digital display dimensions 93 x 32 x 28 mm, output 1.5-2 V, otherwise the same.

Product Images