Brief Introduction

Division of Mechanics and Manufacture Measurement Technology is one of the professional divisions subordinate to Shanghai Institute of Measurement and Testing Technology (SIMT). Its professional work covers three of the ten metrology fields: length, force and acoustics. This division represents the highest level of length, force and acoustics metrology in SIMT, Shanghai and even east China.

Division of Mechanics and Manufacture Measurement Technology has five laboratories: laboratory of weight and gauge block, laboratory of precision measurement, laboratory of engineering measurement, laboratory of force and laboratory of acoustics and vibration. This division has established 51 public standards of measurement among which 30 are the highest level ones in east China, 195 items of calibration and testing were approved by CNAS (China National Accreditation Service for Conformity Assessment), guaranteeing the metrological traceability to the SI. This division is capable of carrying out verification and calibration of gauge block, linear scale, roughness, angular, geometric parameters, weight, force, torque, acoustics and vibration, and testing of material’s physical properties. Another important task of this division is carrying out researching activities for measurement and testing, developing national technical specifications and standards.

Division of Mechanics and Manufacture Measurement Technology is located at the Mechanics Building, Acoustics Building and Force Building of the Shanghai Academy of Public Measurement (APM) in ZhangjiangHi-Tech Park, and holds a total laboratory area of 7,000m². This division has 59 staffs and more than 80% are engineers, including 2 professor senior engineers, 12 senior engineers. All staffs take responsibility for “Being domestic first-class and leading in East China”, take the opportunity of the construction of Shanghai Technology Innovation Center, focus on the key projects in the institute’s “13th Five-Year Plan”, and strive for creating SIMT’s new brilliance.

Service Features

• Gear and spline gauge

        Measurement range: m=0.5~10, rb≤200 mm, β≤45°, 3rd-class and below

Fig.1 Gear and spline gauge

• Four-wheel alignment instrument

        Measurement Range: ±10°

        Measurement uncertainty: U=0.02°（k=2）

Fig.2 Four-wheel alignment instrument

• Step gauge

        Measurement range: ( 0～1000 ) mm

        Measurement uncertainty: U=0.26 μm+1.26×10-6 Ln ( k=2 )

Fig.3 Step gauge

• Calibration of articulated arm CMM

        Measurement range: ( 0~3.5 ) m

        Measurement uncertainty: U=0.011 mm ( k=2 )

Fig. 4 Calibration of articulated arm CMM

• Calibration of line displacement sensor

        Measurement range:（0~50）m，measurement uncertainty of displacement output: U=1×10-4%（k=2）

Fig. 5 Calibration of line displacement sensor

• Verification / calibration of laser interferometer

        Measurement range:（0~40）m, measurement uncertainty: U=0.1μm+0.1×10-6L  (k=3)

Fig. 6 Verification / calibration of laser interferometer

• 5MN hydraulic standard force machine

        Measurement range: 100KN-5MN, measurement uncertainty: Urel=0.07% （k =2）

Fig. 7 5MN hydraulic standard force machine

• Second-class Gauge Block

        Measurement range:（0~100）mm

        Measurement uncertainty: U99=0.04μm+0.3×10-6Ln

Fig. 8 Ksters Interferometer Standard Equipment

• Weight

        Measurement range：1mg~1000kg

        Accuracy class：1mg~50kg   E2-class and below

        50kg~1000kg  F1-class and below

Fig. 9 Weight

• Acoustics

        Acoustic properties test of product

        Noisy acoustic power test of office equipment, communication base station and household electric appliance, and acoustic information collection and analysis of produce within the prescribed conditions

        Measurement of sound absorption coefficient and acoustic scattering coefficient of building materials

        Acoustics measurement of audio and video equipment like loudspeaker, sound box and television

        Alarm sound test of medical, police and mining equipment

Fig. 10 Hemi-anechoic room

• Vibration

        Absolute method ( Laser Doppler ) of vibration measurement

        Besides the conventional comparison method, the vibration standard device owns the capability of absolute measurement ( Laser Doppler ). Absolute method ( Laser Doppler ) of vibration measurement is the highest accuracy measurement method and can cover low frequency, medium frequency and high frequency ( 0.1 Hz~10000 Hz). It has reached the international advanced level.

Fig. 11 The vibration standard device